public static Boolean IsNameValid(String name, Boolean allowAllCharacters)
{
name = name.Escape();
Regex reg = new Regex("^[a-zA-Z]*[_]?[a-zA-Z]*$");
if (FilteredNames.Any(filteredName => name.ToLower().Contains(filteredName)))
{
return(false);
}
return((reg.IsMatch(name) && !allowAllCharacters) && (name.Length >= 3 && name.Length < 12));
}