dataGridView中限制某列/儲存格只能輸入數字

 

private void dataGridView1_CellValidating(object sender, DataGridViewCellValidatingEventArgs e)
        {

          //限制最後一列只能輸入正整數
            if (e.ColumnIndex != dataGridView1.ColumnCount - 1) { return; }
            dataGridView1.Rows[e.RowIndex].ErrorText  = "";
            int newInteger = 0;         
            if (!int.TryParse(e.FormattedValue.ToString(),out newInteger)|| newInteger <=0)
            {
                e.Cancel   =   true;
                dataGridView1.Rows[e.RowIndex].ErrorText = "列印數量只能是正整數";
                MessageBox.Show("列印數量只能是正整數");
                return;
            }
        }