遍历DataGridView中CheckBox列的方法

int count = 0;
            for (int i = 0; i < this.TableData.Rows.Count; i++)
            {
                if (this.TableData.Rows[i].Cells[0].FormattedValue.ToString() == "True")
                {
                   count++;                }
               
                           
            }
MessageBox.Show(count.ToString());