Sum of products in dataGridview.

int bedSum = 0;
          int blanketSum = 0;
          for (int i = 0; i < dataGridView1.Rows.Count; ++i)
          {
              switch (dataGridView1.Rows[i].Cells["ITEM NAME"].ToString())
              {
                  case "BEDS":
                      bedSum += Convert.ToInt32(dataGridView1.Rows[i].Cells["ITEM QUANTITY"].Value);
                      break;
                  case "BLANKET":
                      blanketSum += Convert.ToInt32(dataGridView1.Rows[i].Cells["ITEM QUANTITY"].Value);
              }

          }