AJAX :: Show UpdateProgress For File Download On Button Click

Jun 16, 2015

I used updateProgress for Downloading File on button click.

it works but when downloading Completes, progress bar did not disappears.

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<br />
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I am trying to using update panel that have upload file when it click and showing the updateprogress

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[Code] ...

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I've included the code:





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I have a webform that works the following way:

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The code-behind is basically this:


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I have an export to excel functionality on my web application. WHen the user clicks the "Export to Excel" button, the file is created and it will ask the user to open it or save it to their local machine.

Since the file creation process takes a long time, I added the ajax update progress control. SO now, as soon as the user clicks the "Export to Excel" button, the progress bar image shows up, but after the file is created, I get the following error.

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I know that, if we use Response.write in the code behind, we get this error. But I have to use Response.Write because I am presenting the user with a prompt to save or open the newly created file. Is there any other way to do this?

The following is the aspx code.

<asp:ScriptManager ID="ScriptManager1" runat="server">
<asp:UpdateProgress ID="UpdateProgress1" runat="server">


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