using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Xamarin.Forms;
using Xamarin.Forms.Xaml;
using MobileApp.Models;
using MobileApp.Views;
using MobileApp.ViewModels;
using NewLife.Log;
namespace MobileApp.Views
{
// Learn more about making custom code visible in the Xamarin.Forms previewer
// by visiting https://aka.ms/xamarinforms-previewer
[DesignTimeVisible(false)]
public partial class ItemsPage : ContentPage
{
ItemsViewModel viewModel;
public ItemsPage()
{
InitializeComponent();
BindingContext = viewModel = new ItemsViewModel();
}
async void OnItemSelected(object sender, SelectedItemChangedEventArgs args)
{
var item = args.SelectedItem as Item;
if (item == null)
return;
XTrace.WriteLine("OnItemSelected:" + item.Text);
await Navigation.PushAsync(new ItemDetailPage(new ItemDetailViewModel(item)));
// Manually deselect item.
ItemsListView.SelectedItem = null;
}
async void AddItem_Clicked(object sender, EventArgs e)
{
await Navigation.PushModalAsync(new NavigationPage(new NewItemPage()));
}
protected override void OnAppearing()
{
base.OnAppearing();
if (viewModel.Items.Count == 0)
viewModel.LoadItemsCommand.Execute(null);
}
}
}
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