I have the parent form with a menuStrip. I already set it to isMdiContainer = True
And I have another form that I call Services.
In the Click event of the menuStrip > Service I put this:
frmCadastroServico CadastroServico = new frmCadastroServico();
CadastroServico.StartPosition = FormStartPosition.CenterParent;
CadastroServico.Show();
But still it does not open inside the main but a new window, how can I solve this?