check update check string before trim

Repository/ConcessionTypeRepository.cs

@@ -48,6 +48,7 @@ namespace CarParkValidationAPI.Repository
 		{			
 			model.Active = dto.Active;
 		    model.ConcessionDesc = dto.Description.Trim();
+			if (!string.IsNullOrEmpty(dto.Display))
 				model.ConcessionDisplay = dto.Display.Trim();
 			model.ConcessionTypeID = dto.Id;
 			return model;

Repository/ValidationPointRepository.cs

@@ -45,6 +45,7 @@ namespace CarParkValidationAPI.Repository
 
 			model.Active = item.Active;
 			model.Description = item.Description.Trim();
+			if (!string.IsNullOrEmpty(item.Display))
 				model.DisplayName = item.Display.Trim();
 			model.ValidationPointID = item.Id;
 			return model;

Startup.cs

@@ -94,6 +94,7 @@ namespace CarParkValidationAPI
             services.AddScoped<IConcessionValidation, ConcessionValidationRepository>();
             services.AddScoped<ILookupCode, LookupCodeRepository>();
             services.AddScoped(typeof(ConcessionValidationReportRepository));
+            services.AddHttpContextAccessor();
         }
 
         // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.