对于 Int32.in C#，值要么太大要么太小

Question

private void MINOR_VICTIM_INFO_Load(object sender, EventArgs e)
{
    DataTable DE = vc.GetMaxMinorNo();
    if (DE.Rows.Count > 0)
    {
        if (DE.Rows[0][0].ToString() == "")
        {
            txtuniqueminorno.Text = "12345678901";
        }
        else
        {
            int majoradded = Convert.ToInt32(DE.Rows[0][0].ToString()) + 1;
            txtuniqueminorno.Text = majoradded.ToString();
        }
    }
}

Answer 1

Integer Limits

At some point in your code you have an integer that is outside of these limits. Use break points and the debugger to find when you are using a value that is outside of these limits.

I would guess that if the error is definitely in this section of code, that looking at

DE.Rows[0][0]

will be where the error lies.