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Ajax UpdatePanel Functionality

Posted on 2007-11-19
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Last Modified: 2012-06-27
Hi experts,

within a web based application i have a dropdownlist. Whenever an index there is selected and an ok-button is pressed, the page-content below is supposed to change. I thought - ok, thats a good a example to try ajax in my web app. So I used the scriptmanager and embedded my user control in my aspx page in the updatepanel, contenttemplate etc.:

// simplified code
<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
  <asp:UpdatePanel ID="UpdateReportPanel" runat="server">
  <Triggers>
      // thats the controlID of the ok button
      <asp:AsyncPostBackTrigger ControlID="ViewReport"/>
  </Triggers>
  <contenttemplate>
    // my user control
    <ti:ProjectStatus id="ctlPStatus" visible="false" runat="server"/>
  </contenttemplate>
</asp:UpdatePanel >

So in the codebehind when a specific entry in the dropdownlist is selected I change the visibility of the usercontrol "ti:projectstatus" to true. I thought thats all I have to do to get the partial page rendering. But still the whole page reloads. What else do I have to do?

 
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Question by:arthrex
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4 Comments
 
LVL 6

Expert Comment

by:ventaur
ID: 20313079
Where is the button, "ViewReport", in relation to your UpdatePanel and user control?
0
 

Author Comment

by:arthrex
ID: 20313123
Its above the scriptmanager tag
0
 

Author Comment

by:arthrex
ID: 20313190
maybe, do i have to reference the updatepanel id somwhere?
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LVL 6

Accepted Solution

by:
ventaur earned 1600 total points
ID: 20313201
Change your UpdatePanel declaration as follows:
<asp:UpdatePanel ID="UpdateReportPanel" runat="server" UpdateMode="Conditional">
...

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