BExIS.Dlm.Services.DataStructure.DataStructureManager.RemoveVariableUsage C# (CSharp) Метод

        public void RemoveVariableUsage(Variable usage)
        {
            Contract.Requires(usage != null && usage.Id >= 0);

            using (IUnitOfWork uow = this.GetUnitOfWork())
            {
                IRepository<Variable> repo = uow.GetRepository<Variable>();
                IRepository<Parameter> paramRepo = uow.GetRepository<Parameter>();
                repo.Delete(usage);
                paramRepo.Delete(usage.Parameters.ToList());
                uow.Commit();
            }
        }

 public ActionResult deleteDataStructure(long Id, string cssId = "")
 {
     MessageModel DataStructureDeleteValidation = MessageModel.validateDataStructureDelete(Id);
     if (DataStructureDeleteValidation.hasMessage)
     {
         return PartialView("_messageWindow", DataStructureDeleteValidation);
     }
     else
     {
         DataStructureManager dataStructureManager = new DataStructureManager();
         if (dataStructureManager.StructuredDataStructureRepo.Get(Id) != null)
         {
             StructuredDataStructure dataStructure = dataStructureManager.StructuredDataStructureRepo.Get(Id);
             DataStructureIO.deleteTemplate(dataStructure.Id);
             foreach (Variable v in dataStructure.Variables)
             {
                 dataStructureManager.RemoveVariableUsage(v);
             }
             dataStructureManager.DeleteStructuredDataStructure(dataStructure);
             LoggerFactory.LogData(dataStructure.Id.ToString(), typeof(DataStructure).Name, Vaiona.Entities.Logging.CrudState.Deleted);
         }
         else
         {
             UnStructuredDataStructure dataStructure = dataStructureManager.UnStructuredDataStructureRepo.Get(Id);
             dataStructureManager.DeleteUnStructuredDataStructure(dataStructure);
             LoggerFactory.LogData(dataStructure.Id.ToString(), typeof(DataStructure).Name, Vaiona.Entities.Logging.CrudState.Deleted);
         }
         return PartialView("_message", new MessageModel()
         {
             Message = "DataStructure" + Id + "deleted",
             hasMessage = false,
             CssId = "deleted"
         });
     }
 }