Test Connection button - How To

Hi,
I need some suggestions on how to implement a test connection button. Say, there are 
5 textboxes
Textbox1 = Username
Textbox2 = Password
Textbox3 = Domain
Textbox4 = ServerName
Textbox5 = FolderIntheServer
If the user/password/domain specified in the Textbox1, Textbox2 and Textbox3 has permission to upload a file into the ServerName/FolderinTheServer ( specified in Textbox4 and Textbox5 ), when the TestConnection button is clicked, there should a message that says, Connection Successful, or if it fails, it should say Connection Failed.