public static void ShowErrorPosition(Exception t, TextBox textBox, Db2SourceContext dataSet, int offset)
        {
            Tuple <int, int> ret = dataSet.GetErrorPosition(t, textBox.Text, offset);

            if (ret == null)
            {
                return;
            }
            textBox.Select(ret.Item1, ret.Item2);
            int l = textBox.GetLineIndexFromCharacterIndex(ret.Item1);

            textBox.ScrollToLine(l);
            textBox.Focus();
        }