private void btnPhanQuyen_Click(object sender, EventArgs e) { if (this.ActiveMdiChild != null) { this.ActiveMdiChild.Close(); } HeThong.frmPhanQuyen frm = new HeThong.frmPhanQuyen(); frm.MdiParent = this; frm.Show(); }
private void btnPhanQuyen_Click(object sender, EventArgs e) { if (this.ActiveMdiChild != null) this.ActiveMdiChild.Close(); HeThong.frmPhanQuyen frm = new HeThong.frmPhanQuyen(); frm.MdiParent = this; frm.Show(); }