public void loatPC()
        {
            dt.Clear();
            dt = sqlCong.LayPhuCap("0");
            gridViewPhuCap.DataSource = dt;
            layMNV laymnv = new layMNV();

            panel.Controls.Add(laymnv);
            btnLuu.Enabled          = false;
            btnSua.Enabled          = false;
            btnXoa.Enabled          = false;
            radioBtnTheoTen.Checked = true;
        }
        public void loatTP()
        {
            dt.Clear();
            dt = sqlCong.LayThuongPhat("0");
            gridViewThuongPhat.DataSource = dt;
            layMNV laymnv = new layMNV();

            panel1.Controls.Add(laymnv);
            radioBtnKT.Enabled   = false;
            radioBtnPhat.Enabled = false;
            btnLuu.Enabled       = false;
            btnSua.Enabled       = false;
            btnXoa.Enabled       = false;
        }