diff --git a/bi/base.js b/bi/base.js
index 5c099604d..bbf833172 100644
--- a/bi/base.js
+++ b/bi/base.js
@@ -308,163 +308,163 @@ BI.Pane = BI.inherit(BI.Widget, {
 
     }
 });
-BI.Pane.EVENT_LOADED = "EVENT_LOADED";/**
- * guy
- * 这仅仅只是一个超类, 所有简单控件的基类
- * 1、类的控制，
- * 2、title的控制
- * 3、文字超过边界显示3个点
- * 4、cursor默认pointor
- * @class BI.Single
- * @extends BI.Widget
- * @abstract
- */
-BI.Single = BI.inherit(BI.Widget, {
-    _defaultConfig: function () {
-        var conf = BI.Single.superclass._defaultConfig.apply(this, arguments);
-        return BI.extend(conf, {
-            baseCls: (conf.baseCls || "") + " bi-single",
-            readonly: false,
-            title: null,
-            warningTitle: null,
-            tipType: null, // success或warning
-            value: null
-        })
-    },
-
-    _showToolTip: function (e, opt) {
-        opt || (opt = {});
-        var self = this;
-        var type = this.getTipType() || (this.isEnabled() ? "success" : "warning");
-        var title = type === "success" ? this.getTitle() : (this.getWarningTitle() || this.getTitle());
-        if (BI.isKey(title)) {
-            BI.Tooltips.show(e, this.getName(), title, type, this, opt);
-        }
-    },
-
-    _hideTooltip: function () {
-        var self = this;
-        var tooltip = BI.Tooltips.get(this.getName());
-        if (BI.isNotNull(tooltip)) {
-            tooltip.element.fadeOut(200, function () {
-                BI.Tooltips.remove(self.getName());
-            });
-        }
-    },
-
-    _init: function () {
-        BI.Single.superclass._init.apply(this, arguments);
-        var self = this, o = this.options;
-        if (BI.isKey(o.title) || BI.isKey(o.warningTitle)
-            || BI.isFunction(o.title) || BI.isFunction(o.warningTitle)) {
-            this.enableHover();
-        }
-    },
-
-    enableHover: function (opt) {
-        opt || (opt = {});
-        var self = this;
-        if (!this._hoverBinded) {
-            this.element.on("mouseenter.title" + this.getName(), function (e) {
-                self._e = e;
-                if (self.getTipType() === "warning" || (BI.isKey(self.getWarningTitle()) && !self.isEnabled())) {
-                    self.timeout = BI.delay(function () {
-                        self._showToolTip(self._e || e, opt);
-                    }, 200);
-                } else if (self.getTipType() === "success" || self.isEnabled()) {
-                    self.timeout = BI.delay(function () {
-                        self._showToolTip(self._e || e, opt);
-                    }, 500);
-                }
-            });
-            this.element.on("mousemove.title" + this.getName(), function (e) {
-                self._e = e;
-                if (!self.element.__isMouseInBounds__(e)) {
-                    if (BI.isNotNull(self.timeout)) {
-                        clearTimeout(self.timeout);
-                    }
-                    self._hideTooltip();
-                }
-            });
-            this.element.on("mouseleave.title" + this.getName(), function () {
-                self._e = null;
-                if (BI.isNotNull(self.timeout)) {
-                    clearTimeout(self.timeout);
-                }
-                self._hideTooltip();
-            });
-            this._hoverBinded = true;
-        }
-    },
-
-    disabledHover: function () {
-        //取消hover事件
-        if (BI.isNotNull(this.timeout)) {
-            clearTimeout(this.timeout);
-        }
-        this._hideTooltip();
-        $(this.element).unbind("mouseenter.title" + this.getName())
-            .unbind("mousemove.title" + this.getName())
-            .unbind("mouseleave.title" + this.getName());
-        this._hoverBinded = false;
-    },
-
-    populate: function (items) {
-        this.items = items || [];
-    },
-
-    //opt: {container: '', belowMouse: false}
-    setTitle: function (title, opt) {
-        this.options.title = title;
-        if (BI.isKey(title)) {
-            this.enableHover(opt);
-        } else {
-            this.disabledHover();
-        }
-    },
-
-    setWarningTitle: function (title, opt) {
-        this.options.warningTitle = title;
-        if (BI.isKey(title)) {
-            this.enableHover(opt);
-        } else {
-            this.disabledHover();
-        }
-    },
-
-    getTipType: function () {
-        return this.options.tipType;
-    },
-
-    isReadOnly: function () {
-        return !!this.options.readonly;
-    },
-
-    getTitle: function () {
-        var title = this.options.title;
-        if(BI.isFunction(title)) {
-            return title();
-        }
-        return title;
-    },
-
-    getWarningTitle: function () {
-        var title = this.options.warningTitle;
-        if(BI.isFunction(title)) {
-            return title();
-        }
-        return title;
-    },
-
-    setValue: function (val) {
-        if (!this.options.readonly) {
-            this.options.value = val;
-        }
-    },
-
-    getValue: function () {
-        return this.options.value;
-    }
+BI.Pane.EVENT_LOADED = "EVENT_LOADED";/**
+ * guy
+ * 这仅仅只是一个超类, 所有简单控件的基类
+ * 1、类的控制，
+ * 2、title的控制
+ * 3、文字超过边界显示3个点
+ * 4、cursor默认pointor
+ * @class BI.Single
+ * @extends BI.Widget
+ * @abstract
+ */
+BI.Single = BI.inherit(BI.Widget, {
+    _defaultConfig: function () {
+        var conf = BI.Single.superclass._defaultConfig.apply(this, arguments);
+        return BI.extend(conf, {
+            baseCls: (conf.baseCls || "") + " bi-single",
+            readonly: false,
+            title: null,
+            warningTitle: null,
+            tipType: null, // success或warning
+            value: null
+        })
+    },
+
+    _showToolTip: function (e, opt) {
+        opt || (opt = {});
+        var self = this;
+        var type = this.getTipType() || (this.isEnabled() ? "success" : "warning");
+        var title = type === "success" ? this.getTitle() : (this.getWarningTitle() || this.getTitle());
+        if (BI.isKey(title)) {
+            BI.Tooltips.show(e, this.getName(), title, type, this, opt);
+        }
+    },
+
+    _hideTooltip: function () {
+        var self = this;
+        var tooltip = BI.Tooltips.get(this.getName());
+        if (BI.isNotNull(tooltip)) {
+            tooltip.element.fadeOut(200, function () {
+                BI.Tooltips.remove(self.getName());
+            });
+        }
+    },
+
+    _init: function () {
+        BI.Single.superclass._init.apply(this, arguments);
+        var self = this, o = this.options;
+        if (BI.isKey(o.title) || BI.isKey(o.warningTitle)
+            || BI.isFunction(o.title) || BI.isFunction(o.warningTitle)) {
+            this.enableHover();
+        }
+    },
+
+    enableHover: function (opt) {
+        opt || (opt = {});
+        var self = this;
+        if (!this._hoverBinded) {
+            this.element.on("mouseenter.title" + this.getName(), function (e) {
+                self._e = e;
+                if (self.getTipType() === "warning" || (BI.isKey(self.getWarningTitle()) && !self.isEnabled())) {
+                    self.timeout = BI.delay(function () {
+                        self._showToolTip(self._e || e, opt);
+                    }, 200);
+                } else if (self.getTipType() === "success" || self.isEnabled()) {
+                    self.timeout = BI.delay(function () {
+                        self._showToolTip(self._e || e, opt);
+                    }, 500);
+                }
+            });
+            this.element.on("mousemove.title" + this.getName(), function (e) {
+                self._e = e;
+                if (!self.element.__isMouseInBounds__(e)) {
+                    if (BI.isNotNull(self.timeout)) {
+                        clearTimeout(self.timeout);
+                    }
+                    self._hideTooltip();
+                }
+            });
+            this.element.on("mouseleave.title" + this.getName(), function () {
+                self._e = null;
+                if (BI.isNotNull(self.timeout)) {
+                    clearTimeout(self.timeout);
+                }
+                self._hideTooltip();
+            });
+            this._hoverBinded = true;
+        }
+    },
+
+    disabledHover: function () {
+        //取消hover事件
+        if (BI.isNotNull(this.timeout)) {
+            clearTimeout(this.timeout);
+        }
+        this._hideTooltip();
+        $(this.element).unbind("mouseenter.title" + this.getName())
+            .unbind("mousemove.title" + this.getName())
+            .unbind("mouseleave.title" + this.getName());
+        this._hoverBinded = false;
+    },
+
+    populate: function (items) {
+        this.items = items || [];
+    },
+
+    //opt: {container: '', belowMouse: false}
+    setTitle: function (title, opt) {
+        this.options.title = title;
+        if (BI.isKey(title)) {
+            this.enableHover(opt);
+        } else {
+            this.disabledHover();
+        }
+    },
+
+    setWarningTitle: function (title, opt) {
+        this.options.warningTitle = title;
+        if (BI.isKey(title)) {
+            this.enableHover(opt);
+        } else {
+            this.disabledHover();
+        }
+    },
+
+    getTipType: function () {
+        return this.options.tipType;
+    },
+
+    isReadOnly: function () {
+        return !!this.options.readonly;
+    },
+
+    getTitle: function () {
+        var title = this.options.title;
+        if(BI.isFunction(title)) {
+            return title();
+        }
+        return title;
+    },
+
+    getWarningTitle: function () {
+        var title = this.options.warningTitle;
+        if(BI.isFunction(title)) {
+            return title();
+        }
+        return title;
+    },
+
+    setValue: function (val) {
+        if (!this.options.readonly) {
+            this.options.value = val;
+        }
+    },
+
+    getValue: function () {
+        return this.options.value;
+    }
 });/**
  * guy 表示一行数据，通过position来定位位置的数据
  * @class BI.Text
@@ -918,82 +918,82 @@ BI.BasicButton = BI.inherit(BI.Single, {
         BI.BasicButton.superclass.destroy.apply(this, arguments);
     }
 });
-BI.BasicButton.EVENT_CHANGE = "BasicButton.EVENT_CHANGE";/**
- * 表示一个可以展开的节点, 不仅有选中状态而且有展开状态
- *
- * Created by GUY on 2015/9/9.
- * @class BI.NodeButton
- * @extends BI.BasicButton
- * @abstract
- */
-BI.NodeButton = BI.inherit(BI.BasicButton, {
-    _defaultConfig: function() {
-        var conf = BI.NodeButton.superclass._defaultConfig.apply(this, arguments);
-        return BI.extend( conf, {
-            baseCls: (conf.baseCls || "") + " bi-node",
-            open: false
-        })
-    },
-
-    _init:function() {
-        BI.NodeButton.superclass._init.apply(this, arguments);
-        var self = this;
-        BI.nextTick(function(){
-            self.setOpened(self.isOpened());
-        })
-    },
-
-    doClick: function(){
-        BI.NodeButton.superclass.doClick.apply(this, arguments);
-        this.setOpened(!this.isOpened());
-    },
-
-    isOnce: function(){
-        return false;
-    },
-
-    isOpened: function(){
-        return !!this.options.open;
-    },
-
-    setOpened: function(b){
-        this.options.open = !!b;
-    },
-
-    triggerCollapse: function(){
-        if(this.isOpened()) {
-            this.setOpened(false);
-            this.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.COLLAPSE, this.getValue(), this);
-        }
-    },
-
-    triggerExpand: function(){
-        if(!this.isOpened()) {
-            this.setOpened(true);
-            this.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.EXPAND, this.getValue(), this);
-        }
-    }
-});/**
- * guy
- * tip提示
- * zIndex在10亿级别
- * @class BI.Tip
- * @extends BI.Single
- * @abstract
- */
-BI.Tip = BI.inherit(BI.Single, {
-    _defaultConfig: function() {
-        var conf = BI.Link.superclass._defaultConfig.apply(this, arguments);
-        return BI.extend(conf, {
-            baseCls: (conf.baseCls || "") + " bi-tip",
-            zIndex: BI.zIndex_tip
-        })
-    },
-
-    _init : function() {
-        BI.Tip.superclass._init.apply(this, arguments);
-        this.element.css({"zIndex": this.options.zIndex});
-    }
+BI.BasicButton.EVENT_CHANGE = "BasicButton.EVENT_CHANGE";/**
+ * 表示一个可以展开的节点, 不仅有选中状态而且有展开状态
+ *
+ * Created by GUY on 2015/9/9.
+ * @class BI.NodeButton
+ * @extends BI.BasicButton
+ * @abstract
+ */
+BI.NodeButton = BI.inherit(BI.BasicButton, {
+    _defaultConfig: function() {
+        var conf = BI.NodeButton.superclass._defaultConfig.apply(this, arguments);
+        return BI.extend( conf, {
+            baseCls: (conf.baseCls || "") + " bi-node",
+            open: false
+        })
+    },
+
+    _init:function() {
+        BI.NodeButton.superclass._init.apply(this, arguments);
+        var self = this;
+        BI.nextTick(function(){
+            self.setOpened(self.isOpened());
+        })
+    },
+
+    doClick: function(){
+        BI.NodeButton.superclass.doClick.apply(this, arguments);
+        this.setOpened(!this.isOpened());
+    },
+
+    isOnce: function(){
+        return false;
+    },
+
+    isOpened: function(){
+        return !!this.options.open;
+    },
+
+    setOpened: function(b){
+        this.options.open = !!b;
+    },
+
+    triggerCollapse: function(){
+        if(this.isOpened()) {
+            this.setOpened(false);
+            this.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.COLLAPSE, this.getValue(), this);
+        }
+    },
+
+    triggerExpand: function(){
+        if(!this.isOpened()) {
+            this.setOpened(true);
+            this.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.EXPAND, this.getValue(), this);
+        }
+    }
+});/**
+ * guy
+ * tip提示
+ * zIndex在10亿级别
+ * @class BI.Tip
+ * @extends BI.Single
+ * @abstract
+ */
+BI.Tip = BI.inherit(BI.Single, {
+    _defaultConfig: function() {
+        var conf = BI.Link.superclass._defaultConfig.apply(this, arguments);
+        return BI.extend(conf, {
+            baseCls: (conf.baseCls || "") + " bi-tip",
+            zIndex: BI.zIndex_tip
+        })
+    },
+
+    _init : function() {
+        BI.Tip.superclass._init.apply(this, arguments);
+        this.element.css({"zIndex": this.options.zIndex});
+    }
 });/**
  * Created by GUY on 2015/6/26.
  * @class BI.ButtonGroup
@@ -14351,15 +14351,15 @@ BI.FormulaEditor = BI.inherit(BI.Single, {
 
     _checkWaterMark: function () {
         var o = this.options;
-        if (!this.disabledWarterMark && BI.isEmptyString(this.editor.getValue()) && BI.isKey(o.watermark)) {
+        if (!this.disabledWaterMark && BI.isEmptyString(this.editor.getValue()) && BI.isKey(o.watermark)) {
             this.watermark && this.watermark.visible();
         } else {
             this.watermark && this.watermark.invisible();
         }
     },
 
-    disableWarterMark: function () {
-        this.disabledWarterMark = true;
+    disableWaterMark: function () {
+        this.disabledWaterMark = true;
         this._checkWaterMark();
     },
 
@@ -18111,7 +18111,7 @@ BI.Editor = BI.inherit(BI.Single, {
 
     _checkWaterMark: function () {
         var o = this.options;
-        if (!this.disabledWarterMark && this.editor.getValue() === "" && BI.isKey(o.watermark)) {
+        if (!this.disabledWaterMark && this.editor.getValue() === "" && BI.isKey(o.watermark)) {
             this.watermark && this.watermark.visible();
         } else {
             this.watermark && this.watermark.invisible();
@@ -18149,13 +18149,13 @@ BI.Editor = BI.inherit(BI.Single, {
         this._checkError();
     },
 
-    disableWarterMark: function () {
-        this.disabledWarterMark = true;
+    disableWaterMark: function () {
+        this.disabledWaterMark = true;
         this._checkWaterMark();
     },
 
-    enableWarterMark: function () {
-        this.disabledWarterMark = false;
+    enableWaterMark: function () {
+        this.disabledWaterMark = false;
         this._checkWaterMark();
     },
 
@@ -20293,32 +20293,32 @@ BI.Tooltip = BI.inherit(BI.Tip, {
     }
 });
 
-BI.shortcut("bi.tooltip", BI.Tooltip);/**
- * 下拉
- * @class BI.Trigger
- * @extends BI.Single
- * @abstract
- */
-BI.Trigger = BI.inherit(BI.Single, {
-    _defaultConfig: function() {
-        var conf = BI.Trigger.superclass._defaultConfig.apply(this, arguments);
-        return BI.extend(conf, {
-            baseCls: (conf.baseCls || "") + " bi-trigger cursor-pointer",
-            height: 30
-        })
-    },
-
-    _init : function() {
-        BI.Trigger.superclass._init.apply(this, arguments);
-    },
-
-    setKey: function(){
-
-    },
-
-    getKey: function(){
-
-    }
+BI.shortcut("bi.tooltip", BI.Tooltip);/**
+ * 下拉
+ * @class BI.Trigger
+ * @extends BI.Single
+ * @abstract
+ */
+BI.Trigger = BI.inherit(BI.Single, {
+    _defaultConfig: function() {
+        var conf = BI.Trigger.superclass._defaultConfig.apply(this, arguments);
+        return BI.extend(conf, {
+            baseCls: (conf.baseCls || "") + " bi-trigger cursor-pointer",
+            height: 30
+        })
+    },
+
+    _init : function() {
+        BI.Trigger.superclass._init.apply(this, arguments);
+    },
+
+    setKey: function(){
+
+    },
+
+    getKey: function(){
+
+    }
 });// Copyright (c) 2013 Adobe Systems Incorporated. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
@@ -30103,6 +30103,41 @@ BI.GridTable = BI.inherit(BI.Widget, {
         this.contextLayout.attr("items", items);
         this.contextLayout.resize();
 
+        this.topLeftGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+        this.topRightGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+        this.bottomLeftGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+        this.bottomRightGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+
+        function overscan(grid, w, h, rSize, cSize) {
+            var rCount = h / rSize;
+            var cCount = w / cSize;
+            if (cCount * (120 / rSize) >= 60 || rCount * (120 / cSize) >= 60) {
+                grid.attr("overscanRowCount", 100);
+                grid.attr("overscanColumnCount", 100);
+            }
+        }
+
+        if (freezeColLength > 0) {
+            overscan(this.topLeftGrid, tlw, tlh, o.headerRowSize, totalLeftColumnSize / freezeColLength);
+            overscan(this.bottomLeftGrid, blw, blh, o.rowSize, totalLeftColumnSize / freezeColLength);
+        }
+        if (o.columnSize.length - freezeColLength > 0) {
+            overscan(this.topRight, trw, trh, o.headerRowSize, totalRightColumnSize / (o.columnSize.length - freezeColLength));
+            overscan(this.bottomRightGrid, brw, brh, o.rowSize, totalRightColumnSize / (o.columnSize.length - freezeColLength));
+        }
+
         this.topLeftGrid._populate(this.header[0]);
         this.topRightGrid._populate(this.header[1]);
         this.bottomLeftGrid._populate(this.items[0]);
@@ -30329,7 +30364,8 @@ BI.QuickGridTable = BI.inherit(BI.GridTable, {
 
     _populateTable: function () {
         var self = this, o = this.options;
-        var regionSize = this.getRegionSize(), totalLeftColumnSize = 0, totalRightColumnSize = 0, totalColumnSize = 0, summaryColumnSizeArray = [];
+        var regionSize = this.getRegionSize(), totalLeftColumnSize = 0, totalRightColumnSize = 0, totalColumnSize = 0,
+            summaryColumnSizeArray = [];
         var freezeColLength = this._getFreezeColLength();
         BI.each(o.columnSize, function (i, size) {
             if (o.isNeedFreeze === true && o.freezeCols.contains(i)) {
@@ -30420,6 +30456,42 @@ BI.QuickGridTable = BI.inherit(BI.GridTable, {
                 }
             });
         });
+
+        this.topLeftGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+        this.topRightGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+        this.bottomLeftGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+        this.bottomRightGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+
+        function overscan(grid, w, h, rSize, cSize) {
+            var rCount = h / rSize;
+            var cCount = w / cSize;
+            if (cCount * (120 / rSize) >= 60 || rCount * (120 / cSize) >= 60) {
+                grid.attr("overscanRowCount", 100);
+                grid.attr("overscanColumnCount", 100);
+            }
+        }
+
+        if (freezeColLength > 0) {
+            overscan(this.topLeftGrid, otlw, otlh, o.headerRowSize, totalLeftColumnSize / freezeColLength);
+            overscan(this.bottomLeftGrid, oblw, oblh, o.rowSize, totalLeftColumnSize / freezeColLength);
+        }
+        if (o.columnSize.length - freezeColLength > 0) {
+            overscan(this.topRight, otrw, otrh, o.headerRowSize, totalRightColumnSize / (o.columnSize.length - freezeColLength));
+            overscan(this.bottomRightGrid, obrw, obrh, o.rowSize, totalRightColumnSize / (o.columnSize.length - freezeColLength));
+        }
+
         this.topLeftGrid.populate(leftHeader);
         this.topRightGrid.populate(rightHeader);
         this.bottomLeftGrid.populate(leftItems);
diff --git a/bi/case.js b/bi/case.js
index 7a8f9ea43..d13037250 100644
--- a/bi/case.js
+++ b/bi/case.js
@@ -7146,6 +7146,7 @@ BI.SignInitialEditor = BI.inherit(BI.Widget, {
     },
 
     setState: function (v) {
+        var o = this.options;
         this._showHint();
         v = (BI.isEmpty(v) || v == o.text) ? o.text : v + "(" + o.text + ")";
         this.text.setValue(v);
@@ -8790,6 +8791,11 @@ BI.SelectList = BI.inherit(BI.Widget, {
         this._checkAllSelected();
     },
 
+    _setEnable: function () {
+        BI.SelectList.superclass._setEnable.apply(this, arguments);
+        this.toolbar.setEnable(arguments);
+    },
+
     resetHeight: function (h) {
         var toolHeight = ( this.toolbar.element.outerHeight() || 25) * ( this.toolbar.isVisible() ? 1 : 0);
         this.list.resetHeight ? this.list.resetHeight(h - toolHeight) :
diff --git a/bi/core.js b/bi/core.js
index e1be123e0..e4b54a49a 100644
--- a/bi/core.js
+++ b/bi/core.js
@@ -2940,10 +2940,7 @@ if (!window.BI) {
             return /(msie|trident)/i.test(navigator.userAgent.toLowerCase());
         },
 
-        isIE9Below: function () {
-            if (!BI.isIE()) {
-                return false;
-            }
+        getIEVersion: function () {
             var version = 0;
             var agent = navigator.userAgent.toLowerCase();
             var v1 = agent.match(/(?:msie\s([\w.]+))/);
@@ -2957,7 +2954,18 @@ if (!window.BI) {
             } else {
                 version = 0;
             }
-            return version < 9;
+            return version;
+        },
+
+        isIE9Below: function () {
+            if (!BI.isIE()) {
+                return false;
+            }
+            return this.getIEVersion() < 9;
+        },
+
+        isIE9: function () {
+            return this.getIEVersion() === 9;
         },
 
         isEdge: function () {
@@ -4672,6 +4680,13 @@ BI.Widget = BI.inherit(BI.OB, {
     },
 
     attr: function (key, value) {
+        var self = this;
+        if (BI.isPlainObject(key)) {
+            BI.each(key, function (k, v) {
+                self.attr(k, v);
+            })
+            return;
+        }
         if (BI.isNotNull(value)) {
             return this.options[key] = value;
         }
diff --git a/bi/widget.js b/bi/widget.js
index 95a2afefa..c0cbf8170 100644
--- a/bi/widget.js
+++ b/bi/widget.js
@@ -629,7 +629,12 @@ BI.AdaptiveArrangement = BI.inherit(BI.Widget, {
                     clearInterval(self._scrollInterval);
                     self._scrollInterval = null;
                 }
+                var count = 0;
                 self._scrollInterval = setInterval(function () {
+                    count++;
+                    if (count <= 3) {
+                        return;
+                    }
                     var offset = self._getScrollOffset();
                     var t = offset.top + map[direction][0] * 40;
                     var l = offset.left + map[direction][1] * 40;
diff --git a/docs/base.js b/docs/base.js
index 5c099604d..bbf833172 100644
--- a/docs/base.js
+++ b/docs/base.js
@@ -308,163 +308,163 @@ BI.Pane = BI.inherit(BI.Widget, {
 
     }
 });
-BI.Pane.EVENT_LOADED = "EVENT_LOADED";/**
- * guy
- * 这仅仅只是一个超类, 所有简单控件的基类
- * 1、类的控制，
- * 2、title的控制
- * 3、文字超过边界显示3个点
- * 4、cursor默认pointor
- * @class BI.Single
- * @extends BI.Widget
- * @abstract
- */
-BI.Single = BI.inherit(BI.Widget, {
-    _defaultConfig: function () {
-        var conf = BI.Single.superclass._defaultConfig.apply(this, arguments);
-        return BI.extend(conf, {
-            baseCls: (conf.baseCls || "") + " bi-single",
-            readonly: false,
-            title: null,
-            warningTitle: null,
-            tipType: null, // success或warning
-            value: null
-        })
-    },
-
-    _showToolTip: function (e, opt) {
-        opt || (opt = {});
-        var self = this;
-        var type = this.getTipType() || (this.isEnabled() ? "success" : "warning");
-        var title = type === "success" ? this.getTitle() : (this.getWarningTitle() || this.getTitle());
-        if (BI.isKey(title)) {
-            BI.Tooltips.show(e, this.getName(), title, type, this, opt);
-        }
-    },
-
-    _hideTooltip: function () {
-        var self = this;
-        var tooltip = BI.Tooltips.get(this.getName());
-        if (BI.isNotNull(tooltip)) {
-            tooltip.element.fadeOut(200, function () {
-                BI.Tooltips.remove(self.getName());
-            });
-        }
-    },
-
-    _init: function () {
-        BI.Single.superclass._init.apply(this, arguments);
-        var self = this, o = this.options;
-        if (BI.isKey(o.title) || BI.isKey(o.warningTitle)
-            || BI.isFunction(o.title) || BI.isFunction(o.warningTitle)) {
-            this.enableHover();
-        }
-    },
-
-    enableHover: function (opt) {
-        opt || (opt = {});
-        var self = this;
-        if (!this._hoverBinded) {
-            this.element.on("mouseenter.title" + this.getName(), function (e) {
-                self._e = e;
-                if (self.getTipType() === "warning" || (BI.isKey(self.getWarningTitle()) && !self.isEnabled())) {
-                    self.timeout = BI.delay(function () {
-                        self._showToolTip(self._e || e, opt);
-                    }, 200);
-                } else if (self.getTipType() === "success" || self.isEnabled()) {
-                    self.timeout = BI.delay(function () {
-                        self._showToolTip(self._e || e, opt);
-                    }, 500);
-                }
-            });
-            this.element.on("mousemove.title" + this.getName(), function (e) {
-                self._e = e;
-                if (!self.element.__isMouseInBounds__(e)) {
-                    if (BI.isNotNull(self.timeout)) {
-                        clearTimeout(self.timeout);
-                    }
-                    self._hideTooltip();
-                }
-            });
-            this.element.on("mouseleave.title" + this.getName(), function () {
-                self._e = null;
-                if (BI.isNotNull(self.timeout)) {
-                    clearTimeout(self.timeout);
-                }
-                self._hideTooltip();
-            });
-            this._hoverBinded = true;
-        }
-    },
-
-    disabledHover: function () {
-        //取消hover事件
-        if (BI.isNotNull(this.timeout)) {
-            clearTimeout(this.timeout);
-        }
-        this._hideTooltip();
-        $(this.element).unbind("mouseenter.title" + this.getName())
-            .unbind("mousemove.title" + this.getName())
-            .unbind("mouseleave.title" + this.getName());
-        this._hoverBinded = false;
-    },
-
-    populate: function (items) {
-        this.items = items || [];
-    },
-
-    //opt: {container: '', belowMouse: false}
-    setTitle: function (title, opt) {
-        this.options.title = title;
-        if (BI.isKey(title)) {
-            this.enableHover(opt);
-        } else {
-            this.disabledHover();
-        }
-    },
-
-    setWarningTitle: function (title, opt) {
-        this.options.warningTitle = title;
-        if (BI.isKey(title)) {
-            this.enableHover(opt);
-        } else {
-            this.disabledHover();
-        }
-    },
-
-    getTipType: function () {
-        return this.options.tipType;
-    },
-
-    isReadOnly: function () {
-        return !!this.options.readonly;
-    },
-
-    getTitle: function () {
-        var title = this.options.title;
-        if(BI.isFunction(title)) {
-            return title();
-        }
-        return title;
-    },
-
-    getWarningTitle: function () {
-        var title = this.options.warningTitle;
-        if(BI.isFunction(title)) {
-            return title();
-        }
-        return title;
-    },
-
-    setValue: function (val) {
-        if (!this.options.readonly) {
-            this.options.value = val;
-        }
-    },
-
-    getValue: function () {
-        return this.options.value;
-    }
+BI.Pane.EVENT_LOADED = "EVENT_LOADED";/**
+ * guy
+ * 这仅仅只是一个超类, 所有简单控件的基类
+ * 1、类的控制，
+ * 2、title的控制
+ * 3、文字超过边界显示3个点
+ * 4、cursor默认pointor
+ * @class BI.Single
+ * @extends BI.Widget
+ * @abstract
+ */
+BI.Single = BI.inherit(BI.Widget, {
+    _defaultConfig: function () {
+        var conf = BI.Single.superclass._defaultConfig.apply(this, arguments);
+        return BI.extend(conf, {
+            baseCls: (conf.baseCls || "") + " bi-single",
+            readonly: false,
+            title: null,
+            warningTitle: null,
+            tipType: null, // success或warning
+            value: null
+        })
+    },
+
+    _showToolTip: function (e, opt) {
+        opt || (opt = {});
+        var self = this;
+        var type = this.getTipType() || (this.isEnabled() ? "success" : "warning");
+        var title = type === "success" ? this.getTitle() : (this.getWarningTitle() || this.getTitle());
+        if (BI.isKey(title)) {
+            BI.Tooltips.show(e, this.getName(), title, type, this, opt);
+        }
+    },
+
+    _hideTooltip: function () {
+        var self = this;
+        var tooltip = BI.Tooltips.get(this.getName());
+        if (BI.isNotNull(tooltip)) {
+            tooltip.element.fadeOut(200, function () {
+                BI.Tooltips.remove(self.getName());
+            });
+        }
+    },
+
+    _init: function () {
+        BI.Single.superclass._init.apply(this, arguments);
+        var self = this, o = this.options;
+        if (BI.isKey(o.title) || BI.isKey(o.warningTitle)
+            || BI.isFunction(o.title) || BI.isFunction(o.warningTitle)) {
+            this.enableHover();
+        }
+    },
+
+    enableHover: function (opt) {
+        opt || (opt = {});
+        var self = this;
+        if (!this._hoverBinded) {
+            this.element.on("mouseenter.title" + this.getName(), function (e) {
+                self._e = e;
+                if (self.getTipType() === "warning" || (BI.isKey(self.getWarningTitle()) && !self.isEnabled())) {
+                    self.timeout = BI.delay(function () {
+                        self._showToolTip(self._e || e, opt);
+                    }, 200);
+                } else if (self.getTipType() === "success" || self.isEnabled()) {
+                    self.timeout = BI.delay(function () {
+                        self._showToolTip(self._e || e, opt);
+                    }, 500);
+                }
+            });
+            this.element.on("mousemove.title" + this.getName(), function (e) {
+                self._e = e;
+                if (!self.element.__isMouseInBounds__(e)) {
+                    if (BI.isNotNull(self.timeout)) {
+                        clearTimeout(self.timeout);
+                    }
+                    self._hideTooltip();
+                }
+            });
+            this.element.on("mouseleave.title" + this.getName(), function () {
+                self._e = null;
+                if (BI.isNotNull(self.timeout)) {
+                    clearTimeout(self.timeout);
+                }
+                self._hideTooltip();
+            });
+            this._hoverBinded = true;
+        }
+    },
+
+    disabledHover: function () {
+        //取消hover事件
+        if (BI.isNotNull(this.timeout)) {
+            clearTimeout(this.timeout);
+        }
+        this._hideTooltip();
+        $(this.element).unbind("mouseenter.title" + this.getName())
+            .unbind("mousemove.title" + this.getName())
+            .unbind("mouseleave.title" + this.getName());
+        this._hoverBinded = false;
+    },
+
+    populate: function (items) {
+        this.items = items || [];
+    },
+
+    //opt: {container: '', belowMouse: false}
+    setTitle: function (title, opt) {
+        this.options.title = title;
+        if (BI.isKey(title)) {
+            this.enableHover(opt);
+        } else {
+            this.disabledHover();
+        }
+    },
+
+    setWarningTitle: function (title, opt) {
+        this.options.warningTitle = title;
+        if (BI.isKey(title)) {
+            this.enableHover(opt);
+        } else {
+            this.disabledHover();
+        }
+    },
+
+    getTipType: function () {
+        return this.options.tipType;
+    },
+
+    isReadOnly: function () {
+        return !!this.options.readonly;
+    },
+
+    getTitle: function () {
+        var title = this.options.title;
+        if(BI.isFunction(title)) {
+            return title();
+        }
+        return title;
+    },
+
+    getWarningTitle: function () {
+        var title = this.options.warningTitle;
+        if(BI.isFunction(title)) {
+            return title();
+        }
+        return title;
+    },
+
+    setValue: function (val) {
+        if (!this.options.readonly) {
+            this.options.value = val;
+        }
+    },
+
+    getValue: function () {
+        return this.options.value;
+    }
 });/**
  * guy 表示一行数据，通过position来定位位置的数据
  * @class BI.Text
@@ -918,82 +918,82 @@ BI.BasicButton = BI.inherit(BI.Single, {
         BI.BasicButton.superclass.destroy.apply(this, arguments);
     }
 });
-BI.BasicButton.EVENT_CHANGE = "BasicButton.EVENT_CHANGE";/**
- * 表示一个可以展开的节点, 不仅有选中状态而且有展开状态
- *
- * Created by GUY on 2015/9/9.
- * @class BI.NodeButton
- * @extends BI.BasicButton
- * @abstract
- */
-BI.NodeButton = BI.inherit(BI.BasicButton, {
-    _defaultConfig: function() {
-        var conf = BI.NodeButton.superclass._defaultConfig.apply(this, arguments);
-        return BI.extend( conf, {
-            baseCls: (conf.baseCls || "") + " bi-node",
-            open: false
-        })
-    },
-
-    _init:function() {
-        BI.NodeButton.superclass._init.apply(this, arguments);
-        var self = this;
-        BI.nextTick(function(){
-            self.setOpened(self.isOpened());
-        })
-    },
-
-    doClick: function(){
-        BI.NodeButton.superclass.doClick.apply(this, arguments);
-        this.setOpened(!this.isOpened());
-    },
-
-    isOnce: function(){
-        return false;
-    },
-
-    isOpened: function(){
-        return !!this.options.open;
-    },
-
-    setOpened: function(b){
-        this.options.open = !!b;
-    },
-
-    triggerCollapse: function(){
-        if(this.isOpened()) {
-            this.setOpened(false);
-            this.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.COLLAPSE, this.getValue(), this);
-        }
-    },
-
-    triggerExpand: function(){
-        if(!this.isOpened()) {
-            this.setOpened(true);
-            this.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.EXPAND, this.getValue(), this);
-        }
-    }
-});/**
- * guy
- * tip提示
- * zIndex在10亿级别
- * @class BI.Tip
- * @extends BI.Single
- * @abstract
- */
-BI.Tip = BI.inherit(BI.Single, {
-    _defaultConfig: function() {
-        var conf = BI.Link.superclass._defaultConfig.apply(this, arguments);
-        return BI.extend(conf, {
-            baseCls: (conf.baseCls || "") + " bi-tip",
-            zIndex: BI.zIndex_tip
-        })
-    },
-
-    _init : function() {
-        BI.Tip.superclass._init.apply(this, arguments);
-        this.element.css({"zIndex": this.options.zIndex});
-    }
+BI.BasicButton.EVENT_CHANGE = "BasicButton.EVENT_CHANGE";/**
+ * 表示一个可以展开的节点, 不仅有选中状态而且有展开状态
+ *
+ * Created by GUY on 2015/9/9.
+ * @class BI.NodeButton
+ * @extends BI.BasicButton
+ * @abstract
+ */
+BI.NodeButton = BI.inherit(BI.BasicButton, {
+    _defaultConfig: function() {
+        var conf = BI.NodeButton.superclass._defaultConfig.apply(this, arguments);
+        return BI.extend( conf, {
+            baseCls: (conf.baseCls || "") + " bi-node",
+            open: false
+        })
+    },
+
+    _init:function() {
+        BI.NodeButton.superclass._init.apply(this, arguments);
+        var self = this;
+        BI.nextTick(function(){
+            self.setOpened(self.isOpened());
+        })
+    },
+
+    doClick: function(){
+        BI.NodeButton.superclass.doClick.apply(this, arguments);
+        this.setOpened(!this.isOpened());
+    },
+
+    isOnce: function(){
+        return false;
+    },
+
+    isOpened: function(){
+        return !!this.options.open;
+    },
+
+    setOpened: function(b){
+        this.options.open = !!b;
+    },
+
+    triggerCollapse: function(){
+        if(this.isOpened()) {
+            this.setOpened(false);
+            this.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.COLLAPSE, this.getValue(), this);
+        }
+    },
+
+    triggerExpand: function(){
+        if(!this.isOpened()) {
+            this.setOpened(true);
+            this.fireEvent(BI.Controller.EVENT_CHANGE, BI.Events.EXPAND, this.getValue(), this);
+        }
+    }
+});/**
+ * guy
+ * tip提示
+ * zIndex在10亿级别
+ * @class BI.Tip
+ * @extends BI.Single
+ * @abstract
+ */
+BI.Tip = BI.inherit(BI.Single, {
+    _defaultConfig: function() {
+        var conf = BI.Link.superclass._defaultConfig.apply(this, arguments);
+        return BI.extend(conf, {
+            baseCls: (conf.baseCls || "") + " bi-tip",
+            zIndex: BI.zIndex_tip
+        })
+    },
+
+    _init : function() {
+        BI.Tip.superclass._init.apply(this, arguments);
+        this.element.css({"zIndex": this.options.zIndex});
+    }
 });/**
  * Created by GUY on 2015/6/26.
  * @class BI.ButtonGroup
@@ -14351,15 +14351,15 @@ BI.FormulaEditor = BI.inherit(BI.Single, {
 
     _checkWaterMark: function () {
         var o = this.options;
-        if (!this.disabledWarterMark && BI.isEmptyString(this.editor.getValue()) && BI.isKey(o.watermark)) {
+        if (!this.disabledWaterMark && BI.isEmptyString(this.editor.getValue()) && BI.isKey(o.watermark)) {
             this.watermark && this.watermark.visible();
         } else {
             this.watermark && this.watermark.invisible();
         }
     },
 
-    disableWarterMark: function () {
-        this.disabledWarterMark = true;
+    disableWaterMark: function () {
+        this.disabledWaterMark = true;
         this._checkWaterMark();
     },
 
@@ -18111,7 +18111,7 @@ BI.Editor = BI.inherit(BI.Single, {
 
     _checkWaterMark: function () {
         var o = this.options;
-        if (!this.disabledWarterMark && this.editor.getValue() === "" && BI.isKey(o.watermark)) {
+        if (!this.disabledWaterMark && this.editor.getValue() === "" && BI.isKey(o.watermark)) {
             this.watermark && this.watermark.visible();
         } else {
             this.watermark && this.watermark.invisible();
@@ -18149,13 +18149,13 @@ BI.Editor = BI.inherit(BI.Single, {
         this._checkError();
     },
 
-    disableWarterMark: function () {
-        this.disabledWarterMark = true;
+    disableWaterMark: function () {
+        this.disabledWaterMark = true;
         this._checkWaterMark();
     },
 
-    enableWarterMark: function () {
-        this.disabledWarterMark = false;
+    enableWaterMark: function () {
+        this.disabledWaterMark = false;
         this._checkWaterMark();
     },
 
@@ -20293,32 +20293,32 @@ BI.Tooltip = BI.inherit(BI.Tip, {
     }
 });
 
-BI.shortcut("bi.tooltip", BI.Tooltip);/**
- * 下拉
- * @class BI.Trigger
- * @extends BI.Single
- * @abstract
- */
-BI.Trigger = BI.inherit(BI.Single, {
-    _defaultConfig: function() {
-        var conf = BI.Trigger.superclass._defaultConfig.apply(this, arguments);
-        return BI.extend(conf, {
-            baseCls: (conf.baseCls || "") + " bi-trigger cursor-pointer",
-            height: 30
-        })
-    },
-
-    _init : function() {
-        BI.Trigger.superclass._init.apply(this, arguments);
-    },
-
-    setKey: function(){
-
-    },
-
-    getKey: function(){
-
-    }
+BI.shortcut("bi.tooltip", BI.Tooltip);/**
+ * 下拉
+ * @class BI.Trigger
+ * @extends BI.Single
+ * @abstract
+ */
+BI.Trigger = BI.inherit(BI.Single, {
+    _defaultConfig: function() {
+        var conf = BI.Trigger.superclass._defaultConfig.apply(this, arguments);
+        return BI.extend(conf, {
+            baseCls: (conf.baseCls || "") + " bi-trigger cursor-pointer",
+            height: 30
+        })
+    },
+
+    _init : function() {
+        BI.Trigger.superclass._init.apply(this, arguments);
+    },
+
+    setKey: function(){
+
+    },
+
+    getKey: function(){
+
+    }
 });// Copyright (c) 2013 Adobe Systems Incorporated. All rights reserved.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
@@ -30103,6 +30103,41 @@ BI.GridTable = BI.inherit(BI.Widget, {
         this.contextLayout.attr("items", items);
         this.contextLayout.resize();
 
+        this.topLeftGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+        this.topRightGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+        this.bottomLeftGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+        this.bottomRightGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+
+        function overscan(grid, w, h, rSize, cSize) {
+            var rCount = h / rSize;
+            var cCount = w / cSize;
+            if (cCount * (120 / rSize) >= 60 || rCount * (120 / cSize) >= 60) {
+                grid.attr("overscanRowCount", 100);
+                grid.attr("overscanColumnCount", 100);
+            }
+        }
+
+        if (freezeColLength > 0) {
+            overscan(this.topLeftGrid, tlw, tlh, o.headerRowSize, totalLeftColumnSize / freezeColLength);
+            overscan(this.bottomLeftGrid, blw, blh, o.rowSize, totalLeftColumnSize / freezeColLength);
+        }
+        if (o.columnSize.length - freezeColLength > 0) {
+            overscan(this.topRight, trw, trh, o.headerRowSize, totalRightColumnSize / (o.columnSize.length - freezeColLength));
+            overscan(this.bottomRightGrid, brw, brh, o.rowSize, totalRightColumnSize / (o.columnSize.length - freezeColLength));
+        }
+
         this.topLeftGrid._populate(this.header[0]);
         this.topRightGrid._populate(this.header[1]);
         this.bottomLeftGrid._populate(this.items[0]);
@@ -30329,7 +30364,8 @@ BI.QuickGridTable = BI.inherit(BI.GridTable, {
 
     _populateTable: function () {
         var self = this, o = this.options;
-        var regionSize = this.getRegionSize(), totalLeftColumnSize = 0, totalRightColumnSize = 0, totalColumnSize = 0, summaryColumnSizeArray = [];
+        var regionSize = this.getRegionSize(), totalLeftColumnSize = 0, totalRightColumnSize = 0, totalColumnSize = 0,
+            summaryColumnSizeArray = [];
         var freezeColLength = this._getFreezeColLength();
         BI.each(o.columnSize, function (i, size) {
             if (o.isNeedFreeze === true && o.freezeCols.contains(i)) {
@@ -30420,6 +30456,42 @@ BI.QuickGridTable = BI.inherit(BI.GridTable, {
                 }
             });
         });
+
+        this.topLeftGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+        this.topRightGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+        this.bottomLeftGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+        this.bottomRightGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+
+        function overscan(grid, w, h, rSize, cSize) {
+            var rCount = h / rSize;
+            var cCount = w / cSize;
+            if (cCount * (120 / rSize) >= 60 || rCount * (120 / cSize) >= 60) {
+                grid.attr("overscanRowCount", 100);
+                grid.attr("overscanColumnCount", 100);
+            }
+        }
+
+        if (freezeColLength > 0) {
+            overscan(this.topLeftGrid, otlw, otlh, o.headerRowSize, totalLeftColumnSize / freezeColLength);
+            overscan(this.bottomLeftGrid, oblw, oblh, o.rowSize, totalLeftColumnSize / freezeColLength);
+        }
+        if (o.columnSize.length - freezeColLength > 0) {
+            overscan(this.topRight, otrw, otrh, o.headerRowSize, totalRightColumnSize / (o.columnSize.length - freezeColLength));
+            overscan(this.bottomRightGrid, obrw, obrh, o.rowSize, totalRightColumnSize / (o.columnSize.length - freezeColLength));
+        }
+
         this.topLeftGrid.populate(leftHeader);
         this.topRightGrid.populate(rightHeader);
         this.bottomLeftGrid.populate(leftItems);
diff --git a/docs/case.js b/docs/case.js
index 7a8f9ea43..d13037250 100644
--- a/docs/case.js
+++ b/docs/case.js
@@ -7146,6 +7146,7 @@ BI.SignInitialEditor = BI.inherit(BI.Widget, {
     },
 
     setState: function (v) {
+        var o = this.options;
         this._showHint();
         v = (BI.isEmpty(v) || v == o.text) ? o.text : v + "(" + o.text + ")";
         this.text.setValue(v);
@@ -8790,6 +8791,11 @@ BI.SelectList = BI.inherit(BI.Widget, {
         this._checkAllSelected();
     },
 
+    _setEnable: function () {
+        BI.SelectList.superclass._setEnable.apply(this, arguments);
+        this.toolbar.setEnable(arguments);
+    },
+
     resetHeight: function (h) {
         var toolHeight = ( this.toolbar.element.outerHeight() || 25) * ( this.toolbar.isVisible() ? 1 : 0);
         this.list.resetHeight ? this.list.resetHeight(h - toolHeight) :
diff --git a/docs/core.js b/docs/core.js
index 21e835a88..6fe5dd752 100644
--- a/docs/core.js
+++ b/docs/core.js
@@ -14082,10 +14082,7 @@ if (!window.BI) {
             return /(msie|trident)/i.test(navigator.userAgent.toLowerCase());
         },
 
-        isIE9Below: function () {
-            if (!BI.isIE()) {
-                return false;
-            }
+        getIEVersion: function () {
             var version = 0;
             var agent = navigator.userAgent.toLowerCase();
             var v1 = agent.match(/(?:msie\s([\w.]+))/);
@@ -14099,7 +14096,18 @@ if (!window.BI) {
             } else {
                 version = 0;
             }
-            return version < 9;
+            return version;
+        },
+
+        isIE9Below: function () {
+            if (!BI.isIE()) {
+                return false;
+            }
+            return this.getIEVersion() < 9;
+        },
+
+        isIE9: function () {
+            return this.getIEVersion() === 9;
         },
 
         isEdge: function () {
@@ -14668,6 +14676,13 @@ BI.Widget = BI.inherit(BI.OB, {
     },
 
     attr: function (key, value) {
+        var self = this;
+        if (BI.isPlainObject(key)) {
+            BI.each(key, function (k, v) {
+                self.attr(k, v);
+            })
+            return;
+        }
         if (BI.isNotNull(value)) {
             return this.options[key] = value;
         }
diff --git a/docs/widget.js b/docs/widget.js
index 95a2afefa..c0cbf8170 100644
--- a/docs/widget.js
+++ b/docs/widget.js
@@ -629,7 +629,12 @@ BI.AdaptiveArrangement = BI.inherit(BI.Widget, {
                     clearInterval(self._scrollInterval);
                     self._scrollInterval = null;
                 }
+                var count = 0;
                 self._scrollInterval = setInterval(function () {
+                    count++;
+                    if (count <= 3) {
+                        return;
+                    }
                     var offset = self._getScrollOffset();
                     var t = offset.top + map[direction][0] * 40;
                     var l = offset.left + map[direction][1] * 40;
diff --git a/src/base/formula/formulaeditor.js b/src/base/formula/formulaeditor.js
index 74da71433..691e8b0e8 100644
--- a/src/base/formula/formulaeditor.js
+++ b/src/base/formula/formulaeditor.js
@@ -90,15 +90,15 @@ BI.FormulaEditor = BI.inherit(BI.Single, {
 
     _checkWaterMark: function () {
         var o = this.options;
-        if (!this.disabledWarterMark && BI.isEmptyString(this.editor.getValue()) && BI.isKey(o.watermark)) {
+        if (!this.disabledWaterMark && BI.isEmptyString(this.editor.getValue()) && BI.isKey(o.watermark)) {
             this.watermark && this.watermark.visible();
         } else {
             this.watermark && this.watermark.invisible();
         }
     },
 
-    disableWarterMark: function () {
-        this.disabledWarterMark = true;
+    disableWaterMark: function () {
+        this.disabledWaterMark = true;
         this._checkWaterMark();
     },
 
diff --git a/src/base/single/editor/editor.js b/src/base/single/editor/editor.js
index a0a684474..c03bd8005 100644
--- a/src/base/single/editor/editor.js
+++ b/src/base/single/editor/editor.js
@@ -204,7 +204,7 @@ BI.Editor = BI.inherit(BI.Single, {
 
     _checkWaterMark: function () {
         var o = this.options;
-        if (!this.disabledWarterMark && this.editor.getValue() === "" && BI.isKey(o.watermark)) {
+        if (!this.disabledWaterMark && this.editor.getValue() === "" && BI.isKey(o.watermark)) {
             this.watermark && this.watermark.visible();
         } else {
             this.watermark && this.watermark.invisible();
@@ -242,13 +242,13 @@ BI.Editor = BI.inherit(BI.Single, {
         this._checkError();
     },
 
-    disableWarterMark: function () {
-        this.disabledWarterMark = true;
+    disableWaterMark: function () {
+        this.disabledWaterMark = true;
         this._checkWaterMark();
     },
 
-    enableWarterMark: function () {
-        this.disabledWarterMark = false;
+    enableWaterMark: function () {
+        this.disabledWaterMark = false;
         this._checkWaterMark();
     },
 
diff --git a/src/base/table/table.grid.js b/src/base/table/table.grid.js
index 1eae8487b..c18baa2ef 100644
--- a/src/base/table/table.grid.js
+++ b/src/base/table/table.grid.js
@@ -362,6 +362,41 @@ BI.GridTable = BI.inherit(BI.Widget, {
         this.contextLayout.attr("items", items);
         this.contextLayout.resize();
 
+        this.topLeftGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+        this.topRightGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+        this.bottomLeftGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+        this.bottomRightGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+
+        function overscan(grid, w, h, rSize, cSize) {
+            var rCount = h / rSize;
+            var cCount = w / cSize;
+            if (cCount * (120 / rSize) >= 60 || rCount * (120 / cSize) >= 60) {
+                grid.attr("overscanRowCount", 100);
+                grid.attr("overscanColumnCount", 100);
+            }
+        }
+
+        if (freezeColLength > 0) {
+            overscan(this.topLeftGrid, tlw, tlh, o.headerRowSize, totalLeftColumnSize / freezeColLength);
+            overscan(this.bottomLeftGrid, blw, blh, o.rowSize, totalLeftColumnSize / freezeColLength);
+        }
+        if (o.columnSize.length - freezeColLength > 0) {
+            overscan(this.topRight, trw, trh, o.headerRowSize, totalRightColumnSize / (o.columnSize.length - freezeColLength));
+            overscan(this.bottomRightGrid, brw, brh, o.rowSize, totalRightColumnSize / (o.columnSize.length - freezeColLength));
+        }
+
         this.topLeftGrid._populate(this.header[0]);
         this.topRightGrid._populate(this.header[1]);
         this.bottomLeftGrid._populate(this.items[0]);
diff --git a/src/base/table/table.grid.quick.js b/src/base/table/table.grid.quick.js
index 878f1bcd2..c5c98a337 100644
--- a/src/base/table/table.grid.quick.js
+++ b/src/base/table/table.grid.quick.js
@@ -116,7 +116,8 @@ BI.QuickGridTable = BI.inherit(BI.GridTable, {
 
     _populateTable: function () {
         var self = this, o = this.options;
-        var regionSize = this.getRegionSize(), totalLeftColumnSize = 0, totalRightColumnSize = 0, totalColumnSize = 0, summaryColumnSizeArray = [];
+        var regionSize = this.getRegionSize(), totalLeftColumnSize = 0, totalRightColumnSize = 0, totalColumnSize = 0,
+            summaryColumnSizeArray = [];
         var freezeColLength = this._getFreezeColLength();
         BI.each(o.columnSize, function (i, size) {
             if (o.isNeedFreeze === true && o.freezeCols.contains(i)) {
@@ -207,6 +208,42 @@ BI.QuickGridTable = BI.inherit(BI.GridTable, {
                 }
             });
         });
+
+        this.topLeftGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+        this.topRightGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+        this.bottomLeftGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+        this.bottomRightGrid.attr({
+            overscanColumnCount: 0,
+            overscanRowCount: 0
+        });
+
+        function overscan(grid, w, h, rSize, cSize) {
+            var rCount = h / rSize;
+            var cCount = w / cSize;
+            if (cCount * (120 / rSize) >= 60 || rCount * (120 / cSize) >= 60) {
+                grid.attr("overscanRowCount", 100);
+                grid.attr("overscanColumnCount", 100);
+            }
+        }
+
+        if (freezeColLength > 0) {
+            overscan(this.topLeftGrid, otlw, otlh, o.headerRowSize, totalLeftColumnSize / freezeColLength);
+            overscan(this.bottomLeftGrid, oblw, oblh, o.rowSize, totalLeftColumnSize / freezeColLength);
+        }
+        if (o.columnSize.length - freezeColLength > 0) {
+            overscan(this.topRight, otrw, otrh, o.headerRowSize, totalRightColumnSize / (o.columnSize.length - freezeColLength));
+            overscan(this.bottomRightGrid, obrw, obrh, o.rowSize, totalRightColumnSize / (o.columnSize.length - freezeColLength));
+        }
+
         this.topLeftGrid.populate(leftHeader);
         this.topRightGrid.populate(rightHeader);
         this.bottomLeftGrid.populate(leftItems);
diff --git a/src/case/editor/editor.sign.initial.js b/src/case/editor/editor.sign.initial.js
index 2c8023b57..098fa8877 100644
--- a/src/case/editor/editor.sign.initial.js
+++ b/src/case/editor/editor.sign.initial.js
@@ -242,6 +242,7 @@ BI.SignInitialEditor = BI.inherit(BI.Widget, {
     },
 
     setState: function (v) {
+        var o = this.options;
         this._showHint();
         v = (BI.isEmpty(v) || v == o.text) ? o.text : v + "(" + o.text + ")";
         this.text.setValue(v);
diff --git a/src/case/list/list.select.js b/src/case/list/list.select.js
index 26d1297b8..d644d899f 100644
--- a/src/case/list/list.select.js
+++ b/src/case/list/list.select.js
@@ -158,6 +158,11 @@ BI.SelectList = BI.inherit(BI.Widget, {
         this._checkAllSelected();
     },
 
+    _setEnable: function () {
+        BI.SelectList.superclass._setEnable.apply(this, arguments);
+        this.toolbar.setEnable(arguments);
+    },
+
     resetHeight: function (h) {
         var toolHeight = ( this.toolbar.element.outerHeight() || 25) * ( this.toolbar.isVisible() ? 1 : 0);
         this.list.resetHeight ? this.list.resetHeight(h - toolHeight) :
diff --git a/src/core/base.js b/src/core/base.js
index 35ddfdead..9071f40ba 100644
--- a/src/core/base.js
+++ b/src/core/base.js
@@ -1048,10 +1048,7 @@ if (!window.BI) {
             return /(msie|trident)/i.test(navigator.userAgent.toLowerCase());
         },
 
-        isIE9Below: function () {
-            if (!BI.isIE()) {
-                return false;
-            }
+        getIEVersion: function () {
             var version = 0;
             var agent = navigator.userAgent.toLowerCase();
             var v1 = agent.match(/(?:msie\s([\w.]+))/);
@@ -1065,7 +1062,18 @@ if (!window.BI) {
             } else {
                 version = 0;
             }
-            return version < 9;
+            return version;
+        },
+
+        isIE9Below: function () {
+            if (!BI.isIE()) {
+                return false;
+            }
+            return this.getIEVersion() < 9;
+        },
+
+        isIE9: function () {
+            return this.getIEVersion() === 9;
         },
 
         isEdge: function () {
diff --git a/src/core/widget.js b/src/core/widget.js
index 62775547e..a7536dcf5 100644
--- a/src/core/widget.js
+++ b/src/core/widget.js
@@ -343,6 +343,13 @@ BI.Widget = BI.inherit(BI.OB, {
     },
 
     attr: function (key, value) {
+        var self = this;
+        if (BI.isPlainObject(key)) {
+            BI.each(key, function (k, v) {
+                self.attr(k, v);
+            })
+            return;
+        }
         if (BI.isNotNull(value)) {
             return this.options[key] = value;
         }
diff --git a/src/widget/adaptivearrangement/adaptivearrangement.js b/src/widget/adaptivearrangement/adaptivearrangement.js
index 0891d19a9..ee4d56348 100644
--- a/src/widget/adaptivearrangement/adaptivearrangement.js
+++ b/src/widget/adaptivearrangement/adaptivearrangement.js
@@ -210,7 +210,12 @@ BI.AdaptiveArrangement = BI.inherit(BI.Widget, {
                     clearInterval(self._scrollInterval);
                     self._scrollInterval = null;
                 }
+                var count = 0;
                 self._scrollInterval = setInterval(function () {
+                    count++;
+                    if (count <= 3) {
+                        return;
+                    }
                     var offset = self._getScrollOffset();
                     var t = offset.top + map[direction][0] * 40;
                     var l = offset.left + map[direction][1] * 40;