In my recent project I have started out with a form, and later I added another form to be used for some side-functions. The questions goes: How do I make it so, that it is this new form, that opens.

Example: The forms name is: Calc. And so I write:

But it only show a new form I've never seen before nor have I ever made it in the project. Help!

You want an instance of the Calc form, not an instance of the Systems.Windows.Forms.Form:

Calc C = new Calc();

C.Show();

as said, it seems you mistyped the variable declaration and created a Systems.Windows.Forms.Form form insead of your custom form Calc.

You want an instance of the Calc form, not an instance of the Systems.Windows.Forms.Form:

Calc C = new Calc();

C.Show();

as said, it seems you mistyped the variable declaration and created a Systems.Windows.Forms.Form form insead of your custom form Calc.

Ah okay.

Thanks for the help. It was driving me crazy.