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Editorial Team
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Asked: 2026-05-11T21:38:21+00:00

If I use: OnSelectedIndexChanged like this: <asp:DropDownList ID=ddl1 AutoPostBack=true OnSelectedIndexChanged=Test_SelectedIndexChanged runat=server></asp:DropDownList> UpdatePanel and UpdateProgress

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If I use: OnSelectedIndexChanged like this:

<asp:DropDownList ID="ddl1" AutoPostBack="true"  OnSelectedIndexChanged="Test_SelectedIndexChanged" runat="server"></asp:DropDownList>

UpdatePanel and UpdateProgress work correctly, meaning it shows my little gif etc.

However as soon as I change this to call javascript code, like this:

<asp:DropDownList ID="ddl1" AutoPostBack="true" onchange="selectValues()" runat="server"></asp:DropDownList>

It stops working. The progress doesn’t show up. Now, before anyone asks why do I this, it’s because I need to call some scripting into the managed code. It has to do with silverlight.

Does anyone have solution to this problem?

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1 Answer

  1. Editorial Team

    if your update panel doesn’t refresh, the updateprogress control will not operate. if you try to update something without calling the update of the updatepanel (ie using your own JS) the updateprogress will not work.

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