public static int GetNextRootId(this HierarchyId element)
{
string stringId = element.ToString();
//provjeri da li je element root
//root primjer -> /3/
if (stringId.Count(opt => opt == '/') != 2)
{
throw new ArgumentException("Element nije root");
}
string cleanId = stringId.Substring(1, stringId.Length - 2);
if (int.TryParse(cleanId, out int finalId))
{
return(finalId + 1);
}
throw new ArgumentException("Element nije root");
}
public override string ToString() => _imp.ToString();
