private void btnOk_Click(object sender, EventArgs e)
{
int enteredLine;
if (int.TryParse(tbLineNumber.Text, out enteredLine))
{
enteredLine = Math.Min(enteredLine, TotalLineCount);
enteredLine = Math.Max(1, enteredLine);
SelectedLineNumber = enteredLine;
}
int columnNumber;
if (int.TryParse(tbColumnNum.Text, out columnNumber))
{
columnNumber = Math.Min(columnNumber, TotalLineCount);
columnNumber = Math.Max(1, columnNumber);
SelectedColumnNumber = columnNumber;
}
DialogResult = DialogResult.OK;
Close();
}