datetime valid触发时更新value

src/widget/dynamicdatetime/dynamicdatetime.combo.js

@@ -125,6 +125,7 @@ BI.DynamicDateTimeCombo = BI.inherit(BI.Single, {
                             }, {
                                 eventName: BI.DynamicDateTimeTrigger.EVENT_VALID,
                                 action: function () {
+                                    self.storeValue = self.trigger.getValue();
                                     self.combo.element.removeClass("error");
                                     self.fireEvent(BI.DynamicDateTimeCombo.EVENT_VALID);
                                 }