public App()
{
InitializeComponent();
productsDataStore = new ProductsDataStore();
unitsDataStore = new UnitsDataStore();
MainPage = new NavigationPage(new ProductsPage());
}
private async Task ExecuteLoadProductsCommand()
{
if (IsBusy)
{
return;
}
IsBusy = true;
try
{
Products.Clear();
var items = await ProductsDataStore.GetItemsAsync(true);
Products.ReplaceRange(items);
}
catch (Exception ex)
{
Debug.WriteLine(ex);
MessagingCenter.Send(new MessagingCenterAlert
{
Title = "Error",
Message = "Unable to load Products.",
Cancel = "OK"
}, "message");
}
finally
{
IsBusy = false;
}
}
public void Setup()
{
IDataStore <Product> productsDataStore = new ProductsDataStore();
productsViewModel = new ProductsViewModel(productsDataStore);
unitsDataStore = new UnitsDataStore();
unitsViewModel = new UnitsViewModel(UnitBase.Weight, unitsDataStore);
}
public ProductsViewModel()
{
Title = "Products";
MessagingCenter.Subscribe <ProductEditPage, Product>(this, "AddProduct", async(obj, product) =>
{
var _prod = (Product)product;
Products.Add(_prod);
await ProductsDataStore.AddItemAsync(_prod);
});
}
public void Setup()
{
IDataStore <Product> productsDataStore = new ProductsDataStore();
productsViewModel = new ProductsViewModel(productsDataStore);
}
