public bool Contains(StepListItem value) { return(List.Contains(value)); }
public int Add(StepListItem value) { value.List = this.StepList; return(List.Add(value)); }
public void Insert(int index, StepListItem value) { List.Insert(index, value); }
public void Remove(StepListItem value) { List.Remove(value); }
public int IndexOf(StepListItem value) { return(List.IndexOf(value)); }