private void bảoDưỡngThiếtBịToolStripMenuItem_Click(object sender, EventArgs e) { frmThietbi bdtb = new frmThietbi(); bdtb.MdiParent = this; bdtb.Show(); }
private void quảnLýThiếtBịToolStripMenuItem_Click(object sender, EventArgs e) { frmThietbi thietbi = new frmThietbi(); thietbi.MdiParent = this; thietbi.Show(); }