private void btnAACNewEmployee_Click(object sender, EventArgs e) { Form addEmployForm = new frmAddEmployee(this, new Presenter.Elements.EmployeePresenter()); addEmployForm.FormBorderStyle = FormBorderStyle.None; //set fill parent addEmployForm.MdiParent = this.MdiParent; addEmployForm.Dock = DockStyle.Fill; addEmployForm.Show(); }