private async void CreateCategoryHandler() { var view = new CreateEditCategoryDialog { DataContext = new CreateEditCategoryViewModel(), }; var result = await DialogHost.Show(view, "RootDialog", ClosingEventHandler); if (result is CreateEditCategoryViewModel data) { var createdCategory = new Category(Guid.NewGuid(), data.Name); await _categoryRepository.AddOne(createdCategory); Categories.Add(createdCategory); } }
public IActionResult CreateCategory(CreateCategoryViewModel createCategoryViewModel) { if (!ModelState.IsValid) { return(View(createCategoryViewModel)); } var category = new Category(Guid.NewGuid(), createCategoryViewModel.CategoryName); var categories = _categoryRepository.GetAll(); if (categories.Any(e => e.Name.ToLower().Equals(category.Name.ToLower()))) { ModelState.AddModelError(string.Empty, $"Category '{category.Name}' already exists"); return(View(createCategoryViewModel)); } _categoryRepository.AddOne(category); return(RedirectToAction(IndexAction, DefaultController)); }