File upload: How to catch 'maximum length exceeded' error
Bernt Fischer
Has anybody succeeded in catching and handling the 'maximum length exceeded
error' that occurs when someone tries to upload a file larger than allowed
by the setting in web.config?
I want to display a useful error message and have the user redirected back
to the upload page instead of showing the standard error page.
I've tried putting error handling code into Sub Application_Error(ByVal
sender As Object, ByVal e As EventArgs) global.asax. My routine does indeed
get called, but the error keeps popping up, even after the call to
Server.ClearError, and I get redirected to my error page or receive a
notification that the page could not be found. When I trace my web app, the
maximum request length exceeded error is raised, then the Application_Error
routine is executed and immediately afterwards, the "maximum request length
exceeded error" is raised again (and the Application_Error routine is
executed a second time).
Sub Application_Error(ByVal sender As Object, ByVal e As EventArgs)
' Fires when an error occurs
Dim ex As System.Exception = Server.GetLastError
Do
If TypeOf ex Is System.Web.HttpException And _
ex.Message = "Maximum request length exceeded." Then
Server.ClearError()
Response.Redirect(HttpContext.Current.Request.RawUrl & "&e=1")
Exit Sub
End If
ex = ex.InnerException
Loop Until IsNothing(ex)
End Sub
Does anyone know how to effectively clear the error or has anybody had more
luck with a different approach?
Any help would be greatly appreciated
Bernt Fischer
netMEDIA AG
Software Engineer
Antonin Foller
The problem is with IIS UploadReadAheadSize property probably. See notes
about the property and uploads at
http://www.pstruh.cz/help/scptutl/pa35.htm
--
have a nice day
Antonin Foller
PSTRUH Software
http://www.pstruh.cz
"Bernt Fischer" <bfis...@netmedia1.com> wrote in message
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