void ChangeQuantity_Clicked(System.Object sender, System.EventArgs e)
{
var ctx = this.BindingContext as ProductListDTO;
ProductItemDTO item = ((Button)sender).BindingContext as ProductItemDTO;
MessagingCenter.Send <ProductListView, int>(this, GlobalEventSender.PAYMENT_EDIT_PRODUCT_QUANTITY, item.Id);
}
/// <summary>
/// borra un elemento de la lista.
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void Delete_Button_Clicked(System.Object sender, System.EventArgs e)
{
var ctx = this.BindingContext as ProductListDTO;
ProductItemDTO item = ((Button)sender).BindingContext as ProductItemDTO;
MessagingCenter.Send <ProductListView, ProductItemDTO>(this, GlobalEventSender.PAYMENT_DELETE_PRODUCT, item);
}
void Increment_Clicked(System.Object sender, System.EventArgs e)
{
var ctx = this.BindingContext as ProductListDTO;
ProductItemDTO item = ((Button)sender).BindingContext as ProductItemDTO;
item.Quantity += item.Quantity == 300 ? 0 : 1;
item.Render();
ctx.RenderCost();
}
/// <summary>
/// Eliminar un producto y calcular de nuevo el costo total.
/// </summary>
/// <param name="item"></param>
public void Delete(ProductItemDTO item)
{
source.Remove(item);
RenderCost();
}