diff --git a/src/widget/downlist/combo.downlist.js b/src/widget/downlist/combo.downlist.js
index b32fab79f..3895ff6b8 100644
--- a/src/widget/downlist/combo.downlist.js
+++ b/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,