private void tsbmathang_Click(object sender, EventArgs e) { var frm = new MatHang(); if (Existform(frm)) { return; } frm.MdiParent = this; frm.QUYEN = MAQUYEN; frm.Show(); }
private void mathangToolStripMenuItem_Click(object sender, EventArgs e) { // this.panel1.Visible = false; var frm = new MatHang(); if (Existform(frm)) { return; } frm.MdiParent = this; frm.QUYEN = MAQUYEN; frm.Show(); }