private void frmmainquanlykhachsan_Load(object sender, EventArgs e) { frmmain frm = new frmmain(); frm.MdiParent = this; frm.Show(); }
//điều hướng trên form quản lý private void trangChủToolStripMenuItem_Click(object sender, EventArgs e) { frmmain frm = new frmmain(); frm.MdiParent = this; frm.Show(); }
private void frm_load(object sender, EventArgs e) { frmmain frm = new frmmain(); frm.MdiParent = this; frm.Show(); }