private void mnTiepNhanHocSinh_Click(object sender, System.EventArgs e) { Tiepnhanhocsinh frmTiepnhanHocsinh = new Tiepnhanhocsinh(); frmTiepnhanHocsinh.MdiParent = this; frmTiepnhanHocsinh.Show(); }
private void mnTiepNhanHocSinh_Click(object sender, System.EventArgs e) { Tiepnhanhocsinh frmTiepnhanHocsinh=new Tiepnhanhocsinh(); frmTiepnhanHocsinh.MdiParent=this; frmTiepnhanHocsinh.Show(); }