private async Task DeleteItemsAsync(IEnumerable <PropertyMergeModel> models)
 {
     foreach (var model in models)
     {
         await PropertyMergeService.DeletePropertyMergeAsync(model);
     }
 }
 private async Task <IList <PropertyMergeModel> > GetItemsAsync()
 {
     if (!ViewModelArgs.IsEmpty)
     {
         DataRequest <Data.PropertyMerge> request = BuildDataRequest();
         return(await PropertyMergeService.GetPropertyMergeAsync(request));
     }
     return(new List <PropertyMergeModel>());
 }