how to close form1 when i open form2?

[RudiVisser]

It does not work. It will close both form because this code must be in Button_Click of form1 so that when you call This.Close() --> form1 will be Close with all of this code will be close, too.

Any ideas?

this.Hide();
Form2 newform = new Form2();
newform.Show();

This way the form's still open (in theory), however calling application.exit(); to close everything, will close that form too.

[tr333]

this.Hide();
Form2 newform = new Form2();
newform.Show();

This way the form's still open (in theory), however calling application.exit(); to close everything, will close that form too.

the error with this code is that you should be declaring 'newform' with the type 'Form' not the type 'Form2:

this.Hide();
Form newform = new Form2();
newform.Show();

[RudiVisser]

the error with this code is that you should be declaring 'newform' with the type 'Form' not the type 'Form2:

this.Hide();
Form newform = new Form2();
newform.Show();

No, it's not.

[RudiVisser]

No, it's not.

Follow-up: Because there was no error..

[tr333]

Follow-up: Because there was no error..

(i thought i saw earlier in this thread that someone had an error with the code. didn't test it myself )