User318961 postedusing Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Input;
using MobileApp.Services;
using Xamarin.Forms;
namespace MobileApp.ViewModel
{
public class ApprovalMainModel : INotifyPropertyChanged
{
Common objCom = new Common();
public event PropertyChangedEventHandler PropertyChanged;
public List<ApprovalData> listApprovalData { get; set; }
public ApprovalMainModel(List<ApprovalData> list)
{
listApprovalData = list;
allapprovalData = new ObservableCollection<SelectableItemWrapper<ApprovalData>>(listApprovalData
.Select(pk => new SelectableItemWrapper<ApprovalData> { Item = pk }));
}
public async void bindData(string stripAddress, string url)
{
var jsonString = await objCom.GettingJSONFromWebService(stripAddress, url);
if (!string.IsNullOrWhiteSpace(jsonString))
{
if (jsonString != "ConnectFailure")
{
listApprovalData = JsonConvert.DeserializeObject<List<ApprovalData>>(jsonString);
}
}
}
private ObservableCollection<SelectableItemWrapper<ApprovalData>> _apprvalitems;
public ObservableCollection<SelectableItemWrapper<ApprovalData>> allapprovalData
{
get { return _apprvalitems; }
set { _apprvalitems = value; RaisePropertyChanged(); }
}
private ObservableCollection<ApprovalData> _selectedleaveItems;
public ObservableCollection<ApprovalData> SelectedPokemons
{
get
{
return _selectedleaveItems ?? new ObservableCollection<ApprovalData>();
}
private set
{
_selectedleaveItems = value; RaisePropertyChanged();
}
}
#region Commands
private ICommand _getSelectedItemsCommand;
public ICommand GetSelectedItemsCommand
{
get
{
return _getSelectedItemsCommand ??
(_getSelectedItemsCommand = new Command(
() =>
{
SelectedPokemons = GetSelectedPokemons();
// Navigation is not
//await App.Current.MainPage.Navigation.PushAsync(new SelectedPokemonPage());
}));
}
}
#endregion
ObservableCollection<ApprovalData> GetSelectedPokemons()
{
var selected = allapprovalData
.Where(p => p.IsSelected)
.Select(p => p.Item)
.ToList();
return new ObservableCollection<ApprovalData>(selected);
}
void SelectAll(bool select)
{
foreach (var p in allapprovalData)
{
p.IsSelected = select;
}
}
void RaisePropertyChanged([CallerMemberName] string propertyName = null)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(propertyName));
}
}
}
}
Binding Above model into below ,
public LeaveApprovalList(List listad, string status)
{
BindingContext = new ApprovalMainModel(listad);
PokemonsViewModel = new ApprovalMainModel(listad);
listadNew = listad;
list = new ListView { RowHeight = 80 };
list.SetBinding(ListView.ItemsSourceProperty, "allapprovalData");
var template = new DataTemplate(typeof(PokemonSelectableCell));
template.SetBinding(PokemonSelectableCell.NameProperty, "Item.EmpFirstName");
template.SetBinding(PokemonSelectableCell.Duration, "Item.Duration");
template.SetBinding(PokemonSelectableCell.leaveType, "Item.leaveType");
list.ItemTemplate = template;
//var getSelectedItemsButton = new ToolbarItem()
//{
// Text = "Elegir"
//};
//getSelectedItemsButton.SetBinding(ToolbarItem.CommandProperty, "GetSelectedItemsCommand");
//ToolbarItems.Add(getSelectedItemsButton);
StackLayout sl = new StackLayout();
sl.Children.Add(list);
var btn = new Button { Text = "Save" };
btn.SetBinding(Button.CommandProperty, "GetSelectedItemsCommand");
btn.Clicked += btnSave_Clicked;
sl.Children.Add(btn);
Content = sl;
}
private void btnSave_Clicked(object sender, EventArgs e)
{
ObservableCollection oad = new ObservableCollection();
oad = PokemonsViewModel.SelectedPokemons;
for (int i = 0; i < oad.Count; i++)
{
int j = 0;
j = Convert.ToInt16(oad[1].leaveId);
}
}
if i access like this, the count will be showing always 0 in btnsave_clicked.
