判断dataGridView是否重复值

string[] com = new string[dgvRegisterdType.RowCount];for (int i = 0; i < dgvRegisterdType.RowCount; i++){com[i] = dgvRegisterdType.Rows[i].Cells["clinic_type"].Value.ToString();}if (com.Distinct().Count() != com.Length){MessageBox.Show("不允许有相同号类！", "提示");return;}