async void ExecuteNewEntryCommand()
        {
            var newSle = new ShoppingListEntry();

            ShoppingListEntries.Add(newSle);
            await _navService.NavigateTo <ShoppingListEntryViewModel, ShoppingListEntry>(newSle);
        }
 public void Load()
 {
     ShoppingListEntries.Add(new ShoppingListEntry
     {
         Label    = "Milch",
         Price    = 0.89m,
         Quantity = 10,
         Unit     = "Stck",
         Store    = "Edeka"
     });
     ShoppingListEntries.Add(new ShoppingListEntry
     {
         Label    = "Nuss-Nougat-Creme",
         Price    = 2.89m,
         Quantity = 1,
         Unit     = "Stck",
         Store    = "Edeka"
     });
     ShoppingListEntries.Add(
         new ShoppingListEntry
     {
         Label    = "Butter",
         Price    = 0.89m,
         Quantity = 2,
         Unit     = "Stck",
         Store    = "Edeka"
     });
     ShoppingListEntries.Add(
         new ShoppingListEntry
     {
         Label    = "Hackfleisch",
         Price    = 18,
         Quantity = 0.5,
         Unit     = "kg",
         Store    = "Rewe"
     });
 }
 void ExecuteItemBoughtCommand(ShoppingListEntry sle)
 {
     ShoppingListEntries.Remove(sle);
 }