chore： 优化

src/base/collection/collection.js

@@ -16,6 +16,9 @@ BI.CollectionView = BI.inherit(BI.Widget, {
             scrolly: false,
             overflowX: true,
             overflowY: true,
+            el: {
+                type: "bi.vertical"
+            },
             cellSizeAndPositionGetter: BI.emptyFn,
             horizontalOverscanSize: 0,
             verticalOverscanSize: 0,
@@ -65,7 +68,7 @@ BI.CollectionView = BI.inherit(BI.Widget, {
                 scrollable = "x";
             }
         }
-        BI._lazyCreateWidget({
+        BI._lazyCreateWidget(o.el, {
             type: "bi.vertical",
             element: this,
             scrollable: scrollable,

src/base/grid/grid.js

@@ -16,6 +16,9 @@ BI.GridView = BI.inherit(BI.Widget, {
             scrolly: false,
             overflowX: true,
             overflowY: true,
+            el: {
+                type: "bi.vertical"
+            },
             overscanColumnCount: 0,
             overscanRowCount: 0,
             rowHeightGetter: BI.emptyFn, // number类型或function类型
@@ -68,7 +71,7 @@ BI.GridView = BI.inherit(BI.Widget, {
                 scrollable = "x";
             }
         }
-        BI._lazyCreateWidget({
+        BI._lazyCreateWidget(o.el, {
             type: "bi.vertical",
             element: this,
             scrollable: scrollable,