public static int[] GetSelfAndChildrenIds(int id)
{
if (LevelPath.TryGetValue(id, out var result))
{
return(result);
}
else
{
var dept = Get(id);
if (dept == null)
{
return(new int[] { });
}
result = CalcSelfAndChildrenIds(id);
LevelPath.Add(id, result);
return(result);
}
}
