private void dataGridView1_CellClick(object sender, DataGridViewCellEventArgs e) { int VT = dataGridView1.CurrentCell.RowIndex; loadCV(VT); var a = dataGridView1.Rows[e.RowIndex]; if (e.ColumnIndex == dataGridView1.Columns["ChiTiet"].Index && e.RowIndex >= 0) { { ChiTietDonVi frmchitiet = new ChiTietDonVi(); frmchitiet.Show(); laymadonvi del = new laymadonvi(frmchitiet.Laydulieu); del(this.txtMaDV); frmchitiet.Show(); } } }