private void btnOK_Click(object sender, RoutedEventArgs e)
{
if (string.IsNullOrWhiteSpace(tbContent.Text))
{
MessageBox.Show("Der neue Name darf nicht leer sein.");
return;
}
if (IsValidHandler?.Invoke(tbContent.Text) == true)
{
clicked = true;
this.Close();
return;
}
MessageBox.Show("Der Name ist schon vergeben.");
return;
}
// Helper method for detecting if a variable is a variable.
// uses isValid in determining if a string could be a variable
private bool couldBeAVariable(string s)
{
int n;
if (!char.IsLetter(s[0])) //if the first letter is not a letter
{
return(false);
}
bool intSwitch = false; //used to test if a letter comes after a number
for (int i = 1; i < s.Count(); i++)
{
if (Int32.TryParse(s[i].ToString(), out n))
{
intSwitch = true;
}
else if (intSwitch)
{
return(false);
}
}
return(IsValid.Invoke(s)); //passed my tests now check isValid
}
