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file upload problem

Thanks Richard and Shan,
I am using the HtmlInputFile control.But Shan where
exactly do you want me to put in your code? becoz,after
the user selects a file to upload and hits Submit, then
the flow of the code does not go into the OnClick() event
of the submit button, if the filesize is > 50 Mb.I checked
this by setting a breakpoint on the first line of the
OnClick event. The aspx page just shows a DNS error page.
Is there a way, that i can check the size of the file
before the user clicks submit maybe.
-----Original Message-----
Assuming you use the HTMLInputFile Control to choose your
file to upload then you can do something like this,

HttpPostedFi le file = fileUpload.Post edFile;
int fileLen = file.ContentLen gth;

fileUpload is the HTMLInputFile control name ...


-----Original Message-----
I am trying to upload a file to the webserver through my
asp.net application. The file upload works fine for filesbelow 50 MB size because i have set the maxrequestlengt h
property of the <httpruntime> in the machine.config file
as 51200KB. whenever the user tries to upload a file

is more than 51200KB then, a blank page with DNS error isshown as soon as the user hits the submit button.
I want to be able to display an error message to the userif the file size is greater than 50 MB. How do i catch
this error? I have tried using the try catch block in thesubmit button onClick() event, but no use. Please post medetailed answer.
Thanks in advance.

Nov 18 '05 #1
3 2281
Try to catch the exception in the Application_Err or event handler in
the global.asax file


Dim AppEx As Exception = Server.GetLastE rror()
If AppEx.Message.C ompareTo("Maxim um request length exceeded.") = 0 Then
'this is an overlimit upload
'clear the error out
Server.ClearErr or()
'redirect to my error page
Response.Redire ct("errorpage.a spx")
End If

Please let me know if this works for you.

Thank you,
John Soulis
Microsoft, ASP.NET

This posting is provided "AS IS", with no warranties, and confers no rights.
Use of included script samples are subject to the terms specified at

Nov 18 '05 #2
Thanks John. The code does go into the application error
event during debugging, but does not redirect the page to
the error page. i tried ALL three methods i.e.
response.redire ct, server.transfer and server.execute. But
the error page is not displyed. My error page has just one
label on it which says " Error occured in file transfer" .
It still shows the DNS error page.
Please shed some light on this if u can. Thank you.
-----Original Message-----
Try to catch the exception in the Application_Err or event handler inthe global.asax file


Dim AppEx As Exception = Server.GetLastE rror()
If AppEx.Message.C ompareTo("Maxim um request length exceeded.") = 0 Then'this is an overlimit upload
'clear the error out
Server.ClearEr ror()
'redirect to my error page
Response.Redir ect("errorpage. aspx")
End If

Please let me know if this works for you.

Thank you,
John Soulis
Microsoft, ASP.NET

This posting is provided "AS IS", with no warranties, and confers no rights.Use of included script samples are subject to the terms specified athttp://www.microsoft.com/info/cpyright.htm


Nov 18 '05 #3
Does the "If" statement execute?
John Soulis
Microsoft, ASP.NET

This posting is provided "AS IS", with no warranties, and confers no rights.
Use of included script samples are subject to the terms specified at

Nov 18 '05 #4

This thread has been closed and replies have been disabled. Please start a new discussion.

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