public void Remove(ShopStepInfoElement element)
 {
     if (BaseIndexOf(element) >= 0)
     {
         BaseRemove(element.Key);
     }
 }
 public void Add(ShopStepInfoElement element)
 {
     BaseAdd(element);
 }
 public int IndexOf(ShopStepInfoElement element)
 {
     return(BaseIndexOf(element));
 }