private void RidgeLengthTextBox_GotFocus(object sender, RoutedEventArgs e)
{
if (RidgeLengthTextBox.Text == string.Empty)
{
RidgeLengthTextBox.Text = "0";
}
RidgeLengthTextBox.SelectAll(); b = false;
}
private void RidgeLengthTextBox_TextChanged(object sender, TextChangedEventArgs e)
{
int c = 0;
if (!int.TryParse(RidgeLengthTextBox.Text, out c))
{
MessageBox.Show("Enter length to nearest inch", "Invalid Entry");
}
if (RidgeLengthTextBox.Text == string.Empty)
{
RidgeLengthTextBox.Text = "0"; RidgeLengthTextBox.SelectAll();
}
if (b == false)
{
SqFtTotal.Text = FigureSqFt(int.Parse(EaveLengthTextBox.Text), int.Parse(RakeLengthTextBox.Text), int.Parse(RidgeLengthTextBox.Text)).ToString();
}
}