textBox1.Text = Convert.ToString((int)((Panel)sender.Tag));

http://www.gamedev.net/ http://www.flipcode.com/ And what do you mean "auto generate the code", if you mean some form of middleware, just for C# there is the Axiom engine and the Realm Forge SDK (built ontop of the axiom engine)

If \r\n doesnt work, then you'll have to inherit the control and handle the paint events.

It's called hard work. VB.NET > C# might be possible to automate. If you are talking about unmanaged C++ > C#, then you've just got to pick through the code line by line doing a rewrite. Im currently porting a bunch of 2d physics stuff from C++ to C# and it isnt really all that hard.