c#代码转换成vb.net??????

[dadihongchang]

以确保用户仅输入正整数。

private void dataGridView1_CellValidating(object sender,
DataGridViewCellValidatingEventArgs e)
{
dataGridView1.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 (dataGridView1.Rows[e.RowIndex].IsNewRow) { return; }
if (!int.TryParse(e.FormattedValue.ToString(),
out newInteger) || newInteger < 0)
{
e.Cancel = true;
dataGridView1.Rows[e.RowIndex].ErrorText = "the value must be a non-negative integer";
}
}

[root_]

未测试

Private Sub dataGridView1_CellValidating(ByVal sender As Object, ByVal e As DataGridViewCellValidatingEventArgs) 
    dataGridView1.Rows(e.RowIndex).ErrorText = "" 
    Dim newInteger As Integer 
    
    ' Don't try to validate the 'new row' until finished 
    ' editing since there 
    ' is not any point in validating its initial value. 
    If dataGridView1.Rows(e.RowIndex).IsNewRow Then 
        Return 
    End If 
    If Not Integer.TryParse(e.FormattedValue.ToString(), newInteger) OrElse newInteger < 0 Then 
        e.Cancel = True 
        dataGridView1.Rows(e.RowIndex).ErrorText = "the value must be a non-negative integer" 
    End If 
End Sub