private void thayĐôiQuyĐinhToolStripMenuItem_Click(object sender, EventArgs e) { frmThayDoiQuyDinh frm = new frmThayDoiQuyDinh(); frm.MdiParent = this; frm.Show(); }
private void tsQuyDinh_Click(object sender, EventArgs e) { if (!CheckExistFrom("GUI.frmThayDoiQuyDinh")) { GUI.frmThayDoiQuyDinh frm = new GUI.frmThayDoiQuyDinh(); frm.MdiParent = this; frm.Show(); } else { ActiveChildForm("GUI.frmThayDoiQuyDinh"); } }