diff --git a/bi/base.js b/bi/base.js
index 9f79c10d1..661427432 100644
--- a/bi/base.js
+++ b/bi/base.js
@@ -15109,15 +15109,16 @@ BI.FloatBox = BI.inherit(BI.Widget, {
 
     populate: function (sectionProvider) {
         var self = this;
+        if (this.currentSectionProvider && this.currentSectionProvider !== sectionProvider) {
+            this.currentSectionProvider.destroy();
+        }
         this.currentSectionProvider = sectionProvider;
         sectionProvider.rebuildNorth(this._north);
         sectionProvider.rebuildCenter(this._center);
         sectionProvider.rebuildSouth(this._south);
-        if (sectionProvider instanceof BI.Widget) {
-            sectionProvider.on(BI.PopoverSection.EVENT_CLOSE, function () {
-                self.close();
-            })
-        }
+        sectionProvider.on(BI.PopoverSection.EVENT_CLOSE, function () {
+            self.close();
+        })
     },
 
     show: function () {
@@ -15140,6 +15141,10 @@ BI.FloatBox = BI.inherit(BI.Widget, {
 
     setZindex: function (zindex) {
         this.element.css({"z-index": zindex});
+    },
+
+    destroyed: function () {
+        this.currentSectionProvider && this.currentSectionProvider.destroy();
     }
 });
 
diff --git a/bi/case.js b/bi/case.js
index b70256eb6..d98ac5789 100644
--- a/bi/case.js
+++ b/bi/case.js
@@ -3567,9 +3567,7 @@ BI.ClipBoard = BI.inherit(BI.BasicButton, {
                     return BI.isFunction(o.copy) ? o.copy() : o.copy;
                 }
             });
-            this.clipboard.on("success", function (e) {
-                o.afterCopy();
-            })
+            this.clipboard.on("success", o.afterCopy)
         } else {
             this.element.zclip({
                 path: BI.resourceURL + "/ZeroClipboard.swf",
diff --git a/bi/core.js b/bi/core.js
index 2e88efc9b..e7aa96ebc 100644
--- a/bi/core.js
+++ b/bi/core.js
@@ -4198,6 +4198,7 @@ BI.OB = function (config) {
 $.extend(BI.OB.prototype, {
     props: {},
     init: null,
+    destroyed: null,
 
     _defaultConfig: function (config) {
         return {};
@@ -4317,6 +4318,11 @@ $.extend(BI.OB.prototype, {
             }
         }
         return true;
+    },
+
+    destroy: function () {
+        this.destroyed && this.destroyed();
+        this.purgeListeners();
     }
 });/**
  * Widget超类
diff --git a/docs/base.js b/docs/base.js
index 9f79c10d1..661427432 100644
--- a/docs/base.js
+++ b/docs/base.js
@@ -15109,15 +15109,16 @@ BI.FloatBox = BI.inherit(BI.Widget, {
 
     populate: function (sectionProvider) {
         var self = this;
+        if (this.currentSectionProvider && this.currentSectionProvider !== sectionProvider) {
+            this.currentSectionProvider.destroy();
+        }
         this.currentSectionProvider = sectionProvider;
         sectionProvider.rebuildNorth(this._north);
         sectionProvider.rebuildCenter(this._center);
         sectionProvider.rebuildSouth(this._south);
-        if (sectionProvider instanceof BI.Widget) {
-            sectionProvider.on(BI.PopoverSection.EVENT_CLOSE, function () {
-                self.close();
-            })
-        }
+        sectionProvider.on(BI.PopoverSection.EVENT_CLOSE, function () {
+            self.close();
+        })
     },
 
     show: function () {
@@ -15140,6 +15141,10 @@ BI.FloatBox = BI.inherit(BI.Widget, {
 
     setZindex: function (zindex) {
         this.element.css({"z-index": zindex});
+    },
+
+    destroyed: function () {
+        this.currentSectionProvider && this.currentSectionProvider.destroy();
     }
 });
 
diff --git a/docs/case.js b/docs/case.js
index b70256eb6..d98ac5789 100644
--- a/docs/case.js
+++ b/docs/case.js
@@ -3567,9 +3567,7 @@ BI.ClipBoard = BI.inherit(BI.BasicButton, {
                     return BI.isFunction(o.copy) ? o.copy() : o.copy;
                 }
             });
-            this.clipboard.on("success", function (e) {
-                o.afterCopy();
-            })
+            this.clipboard.on("success", o.afterCopy)
         } else {
             this.element.zclip({
                 path: BI.resourceURL + "/ZeroClipboard.swf",
diff --git a/docs/core.js b/docs/core.js
index 854962a55..e87cd01c6 100644
--- a/docs/core.js
+++ b/docs/core.js
@@ -14200,6 +14200,7 @@ BI.OB = function (config) {
 $.extend(BI.OB.prototype, {
     props: {},
     init: null,
+    destroyed: null,
 
     _defaultConfig: function (config) {
         return {};
@@ -14319,6 +14320,11 @@ $.extend(BI.OB.prototype, {
             }
         }
         return true;
+    },
+
+    destroy: function () {
+        this.destroyed && this.destroyed();
+        this.purgeListeners();
     }
 });/**
  * Widget超类
diff --git a/src/base/layer/layer.floatbox.js b/src/base/layer/layer.floatbox.js
index c015e76eb..8f4b7002a 100644
--- a/src/base/layer/layer.floatbox.js
+++ b/src/base/layer/layer.floatbox.js
@@ -105,15 +105,16 @@ BI.FloatBox = BI.inherit(BI.Widget, {
 
     populate: function (sectionProvider) {
         var self = this;
+        if (this.currentSectionProvider && this.currentSectionProvider !== sectionProvider) {
+            this.currentSectionProvider.destroy();
+        }
         this.currentSectionProvider = sectionProvider;
         sectionProvider.rebuildNorth(this._north);
         sectionProvider.rebuildCenter(this._center);
         sectionProvider.rebuildSouth(this._south);
-        if (sectionProvider instanceof BI.Widget) {
-            sectionProvider.on(BI.PopoverSection.EVENT_CLOSE, function () {
-                self.close();
-            })
-        }
+        sectionProvider.on(BI.PopoverSection.EVENT_CLOSE, function () {
+            self.close();
+        })
     },
 
     show: function () {
@@ -136,6 +137,10 @@ BI.FloatBox = BI.inherit(BI.Widget, {
 
     setZindex: function (zindex) {
         this.element.css({"z-index": zindex});
+    },
+
+    destroyed: function () {
+        this.currentSectionProvider && this.currentSectionProvider.destroy();
     }
 });
 
diff --git a/src/case/clipboard/index.js b/src/case/clipboard/index.js
index 1b9327d08..314cf2e5e 100644
--- a/src/case/clipboard/index.js
+++ b/src/case/clipboard/index.js
@@ -25,9 +25,7 @@ BI.ClipBoard = BI.inherit(BI.BasicButton, {
                     return BI.isFunction(o.copy) ? o.copy() : o.copy;
                 }
             });
-            this.clipboard.on("success", function (e) {
-                o.afterCopy();
-            })
+            this.clipboard.on("success", o.afterCopy)
         } else {
             this.element.zclip({
                 path: BI.resourceURL + "/ZeroClipboard.swf",
diff --git a/src/core/ob.js b/src/core/ob.js
index bb71c3874..51848c34f 100644
--- a/src/core/ob.js
+++ b/src/core/ob.js
@@ -15,6 +15,7 @@ BI.OB = function (config) {
 $.extend(BI.OB.prototype, {
     props: {},
     init: null,
+    destroyed: null,
 
     _defaultConfig: function (config) {
         return {};
@@ -134,5 +135,10 @@ $.extend(BI.OB.prototype, {
             }
         }
         return true;
+    },
+
+    destroy: function () {
+        this.destroyed && this.destroyed();
+        this.purgeListeners();
     }
 });
\ No newline at end of file