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POIFrame callback, server response not appearing on client
 

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    <p>thanks for clicking. </p> <p>I am trying to get status feedback using an IFrame for file uploads. I am not trying to get progress or percentages - just when a file is done uploading and if it was a success or failure. </p> <p>THE PROBLEM is that I can't seem to get the server response to appear on the client. I have to following design:</p> <p>I have an iframe on my page:</p> <pre><code> &lt;iframe id="target_frame" src="" style="border:0px; width:0px; height:0px"&gt;&lt;/iframe&gt; </code></pre> <p>The form tag points to it:</p> <pre><code>&lt;form enctype="multipart/form-data" id="fileUploadForm" name="fileUploadForm" action="picupload.aspx" method="post" target="target_frame"&gt; </code></pre> <p>And the submit button starts a file upload via the iframe:</p> <pre><code>&lt;input id="submit" type="submit" value="upload" /&gt; </code></pre> <p>In the picupload.aspx.cs file, I have a method that returns dynamic data. I then send it to the client:</p> <pre><code>message = data; Response.Write(String.Format("&lt;script language='javascript' type='text/javascript'&gt;window.parent.handleResponse('{0}');&lt;/script&gt;", message)); </code></pre> <p>On the client, I have a response handler:</p> <pre><code> function handleResponse(msg) { document.getElementById('statusDiv').innerHTML = msg; } </code></pre> <p>My intent is to see the msg value change for each uploaded file but I never see anything appear in statusDiv, let alone dynamically changing messages.</p> <p>Can somebody please help??</p>
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    1. USPeter
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    1. COI think your code has gone missing
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      1. USJustin Johnson
    2. COThanks Justin. I forgot to click the "code" button. You should be able to see everything now :)
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    3. COCan you get any sort of javascript to execute in the frame after an upload finished? Something as simple as `alert(1);`?
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      1. USJustin Johnson
 

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