How can I post a form which contain an array value?

Hello,

I am developing an application for windows that is going to upload images to a free image hostings...

I am using WebClient and UploadData for posting my form to the website... now lets take a look to one of these free image hostings , for example img98.com..

as you can see in the main form for uploading there are 4 inputs with the name of "userfile[]" that means userfile is an array...
now I want to know how can I post this value?

thanks

re: How can I post a form which contain an array value?

Have you considered using FTP to post the files to the server from your Windows Application?

re: How can I post a form which contain an array value?

if you could write to a file on the web why not use something like System.IO.File.WriteAllText("ftp:\\img98.com\file. html","");