Upload with .net

[SOS]

Hi guys ,
i use of this code to upload files using ASP.Net :

aspx code :
<INPUT id="File1" type="File" runat="server">

code behind :
File1.PostedFile.SaveAs(Server.MapPath("File.ext"))


but i get this error :
object refrence not set to instance of an object.

what can i do ?
Thanx

 

[Maziar Aflatoun]

Agha Farhad,

This is should clear your question regarding asp.net upload.

http://www.aspheute.com/english/20000802.asp

Let me know if you need any help.

Maziar A.