验证DataGridView单元格的值

private void gridPurchaseOrderDetail_CellValidating(object sender, DataGridViewCellValidatingEventArgs e)
{
if (gridPurchaseOrderDetail.Columns[e.ColumnIndex].CellType.ToString().Contains("TextBox"))
{
if (Common.GetDecimal(e.FormattedValue) < )
{
MessageBox.Show("请检查输入数据的格式", "消息", MessageBoxButtons.OK);
e.Cancel = true;
}
}
}