Hi Phil,
I'm using following web form to test the FileUpload:
----8<----
<%@ Page Language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
protected void UploadButton_Click(object sender, EventArgs e)
{
// Specify the path on the server to
// save the uploaded file to.
String savePath = @"c:\temp\uploads\";
// Before attempting to perform operations
// on the file, verify that the FileUpload
// control contains a file.
if (FileUpload1.HasFile)
{
// Get the name of the file to upload.
String fileName = FileUpload1.FileName;
// Append the name of the file to upload to the path.
savePath += fileName;
// Call the SaveAs method to save the
// uploaded file to the specified path.
// This example does not perform all
// the necessary error checking.
// If a file with the same name
// already exists in the specified path,
// the uploaded file overwrites it.
FileUpload1.SaveAs(savePath);
// Notify the user of the name of the file
// was saved under.
UploadStatusLabel.Text = "Your file was saved as " + fileName;
}
else
{
// Notify the user that a file was not uploaded.
UploadStatusLabel.Text = "You did not specify a file to upload.";
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
<title>FileUpload Example</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<h4>Select a file to upload:</h4>
<asp:FileUpload id="FileUpload1"
runat="server">
</asp:FileUpload>
<br /><br />
<asp:Button id="UploadButton"
Text="Upload file"
OnClick="UploadButton_Click"
runat="server">
</asp:Button>
<hr />
<asp:Label id="UploadStatusLabel"
runat="server">
</asp:Label>
</div>
</form>
</body>
</html>
---->8----
With following settings in web.config:
<httpRuntime maxRequestLength="102400" />
I was able to upload files up to 60MB without problem.
I also have read some similar problems here:
http://channel9.msdn.com/ShowPost.aspx?PostID=106570
I guess you're reading directly from the stream? Could you please post your
code listing here? Thanks.
MaxRequestLength: limits the size of incoming requests, which limits the
size of the uploaded file.
RequestLengthDiskThreshold: controls whether the request is temporarily
stored in memory or on disk while being processed.
If you use FileMon to monitor the asp.net worker process, you will notice
when the uploaded file's size exceeds requestLengthDiskThreshold, a
temporary file gets created at such as:
C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temp orary ASP.NET
Files\fileuploadsizelimit\ccca1291\f22cc828, if the file is smaller than
the RequestLengthDiskThreshold, the temporary file is not created.
So I guess your problem is asp.net was unable to create the temporary file
during uploads. But since you mentioned that you've already run FileMon and
it did not reveal any problems, the problem may exist somewhere before
asp.net trying to create the temporary file.
I want to take a look at your code before doing more research.
Sincerely,
Walter Wang (wa****@online.microsoft.com, remove 'online.')
Microsoft Online Community Support
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