I am trying to do a Server side checking report for a mobile phone application where the client will enter there username/password and phone get sent to the server and then on the server the server will check down the database of user's to check if the username or phonenumber are already in use, and if so send a message back to the client saying so.
Now can anyone give me anyhelp or a link to a website where I can find the base coding on how to do this in C# and ASP.net, or even a username and e-mail and checking site so i can just get a idea on how to do it and then change it for the mobile phone wap site, as i have been looking around all day and can not find it anywhere, its all client side checking errors which i can find.
Thanks in advance