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POAsyncPostBack FileUpload on a ModalPopup
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  1. POAsyncPostBack FileUpload on a ModalPopup
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    copied!<p>I am using a UpdatePanel, and my submit button is one of the triggers along with the clear button. But the problem is I have a FileUpload Control in the div. This is a modal popup, so it displays a form for a user to upload a little note. When I try to upload a file with AsyncPostBackTrigger it does nothing (which I have read about). My question is how do I not use the PostBackTrigger because I want to use the asyncpostbacktrigger because if an error occurs, then the Modal popup closes and the user doesnt know if the file was uploaded or not. What can I do?</p> <p>Code:</p> <pre><code>&lt;asp:Panel ID="addnotepanel" runat="server" style="/*display:none;*/" CssClass="addnotepanel"&gt; &lt;asp:UpdatePanel ID="UpdatePanel1" runat="server"&gt;&lt;ContentTemplate&gt; &lt;asp:FileUpload ID="FileUpload1" runat="server" /&gt; &amp;nbsp;&lt;br /&gt; &lt;/ContentTemplate&gt; &lt;Triggers&gt; &lt;asp:AsyncPostBackTrigger ControlID="ClrBtn" /&gt; &lt;asp:PostBackTrigger ControlID="SubmitBtn" /&gt; &lt;/Triggers&gt; &lt;/asp:UpdatePanel&gt; File: &lt;br /&gt; &lt;asp:Label ID="ErrorLabel" runat="server" Visible="False"&gt;&lt;/asp:Label&gt; &lt;br /&gt; &lt;asp:Button ID="Submitbtn" runat="server" Text="Submit" onclick="Submitbtn_Click" /&gt; &amp;nbsp;&lt;asp:Button ID="CnlBtn" runat="server" Text="Cancel" onclick="CnlBtn_Click" /&gt; &amp;nbsp;&lt;asp:Button ID="ClrBtn" runat="server" onclick="ClrBtn_Click" Text="Clear" /&gt; &amp;nbsp; &lt;/div&gt;&lt;/asp:Panel&gt; </code></pre>
 

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