Поиск по двум полям в DataGridView

       dv = new DataView(); // Новое объявление для поиска в Учебном плане класса
            dv.Table = sheduleDataSet.Tables["Teacher"]; // Таблица для последующего поиска
            dv.RowFilter = "Id_teacher ='" + value + "'";
            teacherDataGridView.DataSource = dv;

DataView1.RowFilter = "CUST_ID = " & index & " AND CUST_DATE =" & Date.Today

if (add_subject[i].id_plan==0)
{
   add_subject[i].id_plan = Convert.ToInt32(academic_planDataGridView[0, curr].Value.ToString());
   add_subject[i].id_Class= Convert.ToInt32(academic_planDataGridView[1, curr].Value.ToString());
   add_subject[i].Lesson= lesson;
   int group=0;
   if (academic_planDataGridView[1, curr].Value.ToString() != "") { group = Convert.ToInt32(academic_planDataGridView[1, curr].Value.ToString()); } else group = 0;
   day_scheduleTableAdapter.Insert(day, Convert.ToInt32(academic_planDataGridView[1,curr].Value.ToString()), Convert.ToInt32(academic_planDataGridView[3, curr].Value.ToString()), 
   Convert.ToInt32(academic_planDataGridView[2, curr].Value.ToString()), lesson, group);
   academic_planDataGridView.CurrentCell = academic_planDataGridView.Rows[curr + 1].Cells[0];
   academic_planDataGridView.Rows[curr].Visible = false;
}

academic_planDataGridView.CurrentCell = academic_planDataGridView.Rows[curr + 1].Cells[0];