Question

<%@ Control Language="C#" AutoEventWireup="true" CodeFile="UploadVideo.ascx.cs"      Inherits="Controls_UploadVideo" %>

<h4>Select a video file to upload:</h4>
<asp:UpdatePanel ID="UpdatePanel" runat="server" UpdateMode="Conditional">
<ContentTemplate>

    <asp:FileUpload id="fuUploadVideo"                  
        runat="server">
    </asp:FileUpload>
    <br /><br />

    <asp:Button id="btnUploadVideo" 
        Text="Upload file"
        OnClick="btnUploadVideo_Click"
        runat="server">
    </asp:Button>      

    <hr />

    <asp:Label id="UploadStatusLabel"
        runat="server">
    </asp:Label>
</ContentTemplate>
<Triggers>
    <asp:PostBackTrigger ControlID="btnUploadVideo" />
</Triggers>

If use the file upload control to select a video file then clicking the file upload button does not resolve a webpage. Everything is being run on my local machine.

If no file is selected then it goes to the website I expect. Does anyone know why this might be the case?

Answer 1

So far I’m aware, standard FileUpload doesn’t work inside an UpdatePanel. You could use AsyncFileUpload control instead.