Pull request #2776: 无jira任务 combo属性继承

Merge in VISUAL/fineui from ~IMP/fineui_fui:master to master

* commit '01583486e3f296bce1e9005ce40a48cc066dbb8d':
  无jira任务 combo属性继承

src/widget/downlist/combo.downlist.js

@@ -14,7 +14,8 @@ BI.DownListCombo = BI.inherit(BI.Widget, {
             stopPropagation: false,
             el: {},
             minWidth: 140,
-            maxHeight: 1000
+            maxHeight: 1000,
+            destroyWhenHide: false
         });
     },
 
@@ -49,6 +50,7 @@ BI.DownListCombo = BI.inherit(BI.Widget, {
             direction: o.direction,
             belowMouse: o.belowMouse,
             stopPropagation: o.stopPropagation,
+            destroyWhenHide: o.destroyWhenHide,
             el: BI.createWidget(o.el, {
                 type: "bi.icon_trigger",
                 extraCls: o.iconCls,