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Tech Support Guy Forums > Internet & Networking > Web Design & Development >
How To Upload A File


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farooqi123's Avatar
Junior Member with 23 posts.
 
Join Date: Jun 2005
Experience: Intermediate
25-Jul-2005, 05:48 AM #1
How To Upload A File
I am writing an ASP.Net application using Visual Studio.net to upload a file to server and then save it. I draw a 'File Field' HTML object, a label and a button on the web form. The code behind button is as below...

Dim fileName As String
Dim filePath As String
Dim UploadFolder As String = Server.MapPath("tempfiles")
If File1.PostedFile.FileName <> "" Then
fileName = System.IO.Path.GetFileName(File1.PostedFile.FileName)
filePath = UploadFolder & "\" & fileName
File1.PostedFile.SaveAs(filePath)
Label1.Text = "<B>File: " & File1.PostedFile.FileName & "</B>"
Label1.Text = Label1.Text & "<BR>Size: " & File1.PostedFile.ContentLength
Label1.Text = Label1.Text & "<BR>Type: " & File1.PostedFile.ContentType
Label1.Text = Label1.Text & "<BR>Saved As: " & filePath
End If

When I run the application, then the following error is raised....

System.NullReferenceException: Object reference not set to an instance of an object.

... and the line number is that having the 'if' statement.

CAN ANY BODY HELP ME WHAT IS THE PROBLEM... Thanks a lot

NOTE: The form in HTML mode is like

<form id="Form1" ENCTYPE=”multipart” runat="server">
Squashman's Avatar
Distinguished Member with 12,474 posts.
 
Join Date: Apr 2003
Location: 1265 Lombardi Ave
25-Jul-2005, 08:51 PM #2
There are a couple of free asp upload scripts available on the net. Would that be an option.
farooqi123's Avatar
Junior Member with 23 posts.
 
Join Date: Jun 2005
Experience: Intermediate
26-Jul-2005, 04:29 AM #3
Thank u very much for the reply..... infact I have tried to find the script on the net as well but could not find..... do u know about a website from where I could download free asp.net scripts..... Thank you very much
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