Please Help! I've tried everything, i dont know what else to do. I just want to upload an image that the user chooses from their library to my websever.
Hi,
ASP.NET is for web applications. If this is a native app you'll need a dedicated forum. Try perhaps https://msdn.microsoft.com/en-us/magazine/dn385710.aspx
(are you sure you can only use FTP and you can't just post the file using HTTP "as usual" for a web app)
Edit: what kind of things have you tried? According to http://viljamis.com/blog/2012/file-upload-support-on-mobile/ the input type=file tag is supported only on Windows Phone 8.1 (could it be what you are using WP8 or earlier ?)