private object BuildReferenceDto(Sysdiagram item)
 {
     return new{
         StringId = _stringConverter.ToString(item),
         Description = item.ToString(),
     };
 }
 private object BuildFullDto(Sysdiagram item)
 {
     return new{
         StringId = _stringConverter.ToString(item),
         item.Name,
         item.PrincipalId,
         item.DiagramId,
         item.Version,
         // item.Definition, // Skip bacause is binary data
     };
 }
 public void Update(Sysdiagram v)
 {
     _Northwind.Update(v);
 }
 public void Delete(Sysdiagram v)
 {
     _Northwind.Delete(v);
 }
 public void Create(Sysdiagram v)
 {
     _Northwind.Save(v);
 }
 public string ToString(Sysdiagram obj)
 {
     return obj.DiagramId.ToString();
 }