Posted on: 2/19/2014 6:16:25 PM | Views : 629

I have a group of DropDownLists inside an UpdatePanel whose data is suppose to change based on values selected in the other DropDownLists.
In addition the data displayed in a GridView is also changed based on items selected from the DropDownList.
So far only the GridView filters when a value is selected from DropDownList_1. DropDownList_2 and 3 do not change to reflect 1. When the query is run in SMS it works just as expected. Originally I was doing this in the code, but was getting chromes eventvalidation postback error, but I didn't want to disable it so I thought that I would try to do all filtering in the HTML, in order to appease the eventvalidation gods.
DropDownList's setup (pretty standard and straightforward)
<asp:DropDownList ID="DropDownList_Filter_1" runat="server" AutoPostBack="true" AppendDataBoundItems="true" DataValueField="column1" DataTextFie ...

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