c# - How to close the main form without letting the application close?

Question

What i want to do:
->Open a MDI form
->Close the projects main form
->Without closing the application

What i have done:

frmMain          


        

Answer 1

You can use the Hide method.

Try doing this:

frmMain fm = new frmMain();
this.Hide();
fm.Show();

Or:

frmMain fm = new frmMain();
this.Hide();
fm.ShowDialog();
this.Show();

The latter will open the window, and once it is closed, the previous window will reappear.