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WebDropDown alwalys show the drop down list.
posted

In my case,I add a WebDropDown in the updatepanel which will post back to server automatically when value changed. 

At first , i click the control to show the drop down list.And then change the value in the edit box of the WebDropDown,but do not select the option from the drop down list .At the same time ,the control will post back to server to run the method i defined. After that ,the drop down list will alwalys shown on the page.

I am using Infragistics V11.2.I think this is a bug,can someone give me some guidance?