Postback in UpdatePanel

I have made a ToolBar usercontrol in a update panel. All buttons should work client side except a print button. I want to make t开发者_C百科his use the original postback.

ScriptManager.GetCurrent(Me).RegisterAsyncPostBackControl(Toolbar2.PrintButton)

However the button still doesn't refresh the page...

Any ideas?

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You must set AutoPostBack to true? of the PrintButton that you have created

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Rather than using the script manager to register a control as asynchronous, instead set the button as a trigger on the update panel itself, which you also can do via code.

HTH.

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When you use RegisterAsyncPostBackControl you must also manually refresh the update panel using the Update() method. http://geekswithblogs.net/lszk/archive/2011/08/08/playing-with-update-panels.aspx

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You can use the Triggers property of the UpdatePanel to register actions that trigger a full postback.

Add a PostBackTrigger object to that property, containig the ControlID of the control which needs to trigger a full postback.

    <asp:UpdatePanel ID="UpdatePanel1" UpdateMode="Conditional" runat="server">
    <ContentTemplate>
    ...
    </ContentTemplate>
    <Triggers>
    <asp:PostBackTrigger ControlID="myFullPostBackControlID" />
    </Triggers>
    </asp:UpdatePanel>