.NET web application+Upload file

Discussion created by meriya on Feb 25, 2013
I have a model for upload a zip file( that it works in flex viewer application very well, but when I run this model in .NET web application, it return this error:
Error: ERROR 000814: Invalid file type

When I checked my scratch folder in arcgisjobs I found a "data_zip" instead of ""!
What is wrong in my .net application or ...?