public ItemsViewModel()
{
Title = "Browse";
Items = new ObservableCollection <Item>();
LoadItemsCommand = new Command(async() => await ExecuteLoadItemsCommand());
MessagingCenter.Subscribe <NewItemPage, Item>(this, "AddItem", async(obj, item) =>
{
var newItem = item as Item;
Items.Add(newItem);
await DataStore.AddItemAsync(newItem);
});
MessagingCenter.Subscribe <AddCategory, string>(this, "AddCategory", async(obj, category) =>
{
await DataStore.AddCategoryAsync(category);
});
}
public CategoriesViewModel()
{
Title = "Categories";
Categories = new ObservableCollection <Category>();
LoadCategoriesCommand = new Command(async() => await ExecuteLoadCategoriesCommand());
MessagingCenter.Subscribe <NewCategoryPage, Category>(this, "AddCategory", async(obj, category) =>
{
var _category = category as Category;
Categories.Add(_category);
await DataStore.AddCategoryAsync(_category);
});
MessagingCenter.Subscribe <ItemsPage, Category>(this, "DeleteCategory", async(obj, category) =>
{
var _category = category as Category;
Categories.Remove(_category);
await DataStore.DeleteCategoryAsync(_category);
});
}
