public void Remove(DBMapping value)
 {
     base.List.Remove(value);
 }
 public void Insert(int index, DBMapping value)
 {
     base.List.Insert(index, value);
 }
 public bool Contains(DBMapping value)
 {
     return base.List.Contains(value);
 }
 public int IndexOf(DBMapping value)
 {
     return base.List.IndexOf(value);
 }
 public int Add(DBMapping value)
 {
     return base.List.Add(value);
 }