I have created a application in VB .NET to upload a file to a server. I am using file field from the HTML components in my application. I am using plumtree portal to upload my code. My problem is that the file field doesnt work in plumtree, by that I mean that after selecting a file in the file field the value is not captured. It returns null value. But if I run the same code on local machine everything work fine. I would like to know is there another way selecting a file if I am not using the file field.