c# - C#：如果数据网格单元格值为数字，则启用按钮

Question

这是 Microsoft 网站上仅在数据网格中输入数字的功能，它工作正常。

如果第一行的第一个单元格值是数字，我想启用按钮？？？我怎样才能做到这一点？？

 private void dataGridView1_CellValidating(object sender,
    DataGridViewCellValidatingEventArgs e)
        {
            ThermalDatGrid.Rows[e.RowIndex].ErrorText = "";
            int newInteger;

            // Don't try to validate the 'new row' until finished 
            // editing since there
            // is not any point in validating its initial value.
            if (ThermalDatGrid.Rows[e.RowIndex].IsNewRow) {
                return;
            }
            if (!int.TryParse(e.FormattedValue.ToString(),
                out newInteger) || newInteger < 0)
            {
                e.Cancel = true;
                ThermalDatGrid.Rows[e.RowIndex].ErrorText = "Only Numerical and Non Negative Values";
            }
        }

Answer 1

尝试：

if (!int.TryParse(e.FormattedValue.ToString(),
             out newInteger) || newInteger < 0)
{
   e.Cancel = true;
   ThermalDatGrid.Rows[e.RowIndex].ErrorText = "Only Numerical and Non Negative Values";
}
else
{
   yourButton.Enabled=true;
}