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POASP.NET: ModalPopupExtender prevents button click event from firing
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  1. POASP.NET: ModalPopupExtender prevents button click event from firing
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    copied!<p>Here is what I'm trying to do: Click a button on my page, which in turn makes (2) things happen:</p> <ol> <li>Display a ModalPopup to prevent the user from pressing any buttons or changing values</li> <li>Call my code behind method, hiding the ModalPopup when finished</li> </ol> <p>Here is the ASP markup:</p> <pre><code>&lt;asp:UpdatePanel ID="UpdatePanel2" runat="server" ChildrenAsTriggers="true" UpdateMode="Always"&gt; &lt;Triggers&gt; &lt;asp:AsyncPostBackTrigger ControlID="btnSaveData" EventName="Click" /&gt; &lt;/Triggers&gt; &lt;ContentTemplate&gt; &lt;asp:Panel ID="pnlHidden" runat="server" style="display: none;"&gt; &lt;div&gt; &lt;h1&gt;Saving...&lt;/h1&gt; &lt;/div&gt; &lt;/asp:Panel&gt; &lt;cc1:ModalPopupExtender ID="modalPopup" BackgroundCssClass="modalBackground" runat="server" TargetControlID="btnSaveData" PopupControlID="pnlHidden" BehaviorID="ShowModal"&gt; &lt;/cc1:ModalPopupExtender&gt; &lt;asp:Button ID="btnSaveData" runat="server" Text="Save Data" OnClick="btnSaveData_Click" /&gt; &lt;/ContentTemplate&gt; &lt;/asp:UpdatePanel&gt; </code></pre> <p>Now, here is my code behind C# code:</p> <pre><code>protected void btnSaveData_Click(object sender, EventArgs e) { UpdateUserData(GetLoggedInUser()); modalPopup.Enabled = false; } </code></pre> <p>Why doesn't this work? The ModalPopup displays perfectly, but the btnSaveData_Click event NEVER fires.</p> <p><strong>UPDATE:</strong> The first suggestion did not work for me. I also tried your second suggestion (insofar as it applied to me). One minor difference on my end is that there is no button on my modal panel (pnlHidden) -- it's just a message. I did try using Javascript events on the client side, which at least did fire concurrently with my server-side event. This was good news, but I can't seem to find or grab a handle on the ModalPopupExtender or its BehaviorID. This doesn't work:</p> <pre><code>function showOverlay() { var popup = $find('modalPopup'); popup.show(); } </code></pre> <p>popup is ALWAYS equal to null.</p> <p><strong>FINAL UPDATE:</strong> This is my final solution for getting this to work (Take specific note of the use of OnClientClick AND OnClick):</p> <pre><code>&lt;asp:UpdatePanel ID="UpdatePanel2" runat="server" ChildrenAsTriggers="true" UpdateMode="Always"&gt; &lt;Triggers&gt; &lt;asp:AsyncPostBackTrigger ControlID="btnSaveData" EventName="Click" /&gt; &lt;/Triggers&gt; &lt;ContentTemplate&gt; &lt;asp:Panel ID="pnlHidden" runat="server" style="display: none;"&gt; &lt;div&gt; &lt;h1&gt;Saving...&lt;/h1&gt; &lt;/div&gt; &lt;/asp:Panel&gt; &lt;cc1:ModalPopupExtender ID="modalPopup" BackgroundCssClass="modalBackground" runat="server" TargetControlID="hdnField" PopupControlID="pnlHidden" BehaviorID="ShowModal"&gt; &lt;asp:HiddenField ID="hdnField" runat="server" /&gt; &lt;/cc1:ModalPopupExtender&gt; &lt;asp:Button ID="btnSaveData" runat="server" Text="Save Data" OnClientClick="showModal();" OnClick="btnSaveData_Click" /&gt; &lt;/ContentTemplate&gt; &lt;/asp:UpdatePanel&gt; </code></pre> <p>Using this Javascript function:</p> <pre><code>function showModal() { $find('ShowModal').show(); } </code></pre> <p>... And this code behind:</p> <pre><code>protected void btnSaveData_Click(object sender, EventArgs e) { UpdateUserData(GetLoggedInUser()); modalPopup.hide(); } </code></pre>
 

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