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using System.Collections.Generic;
using System.Collections.ObjectModel;
using System.ComponentModel;
using System.Runtime.CompilerServices;
using MaterialDesignColors.WpfExample.Domain;
namespace MaterialDesignDemo.Domain
{
public class ListsAndGridsViewModel : INotifyPropertyChanged
{
private readonly ObservableCollection<SelectableViewModel> _items1;
private readonly ObservableCollection<SelectableViewModel> _items2;
private readonly ObservableCollection<SelectableViewModel> _items3;
private bool? _isAllItems3Selected;
public ListsAndGridsViewModel()
{
_items1 = CreateData();
_items2 = CreateData();
_items3 = CreateData();
}
public bool? IsAllItems3Selected
{
get { return _isAllItems3Selected; }
set
{
if (_isAllItems3Selected == value) return;
_isAllItems3Selected = value;
if (_isAllItems3Selected.HasValue)
SelectAll(_isAllItems3Selected.Value, Items3);
OnPropertyChanged();
}
}
private static void SelectAll(bool select, IEnumerable<SelectableViewModel> models)
{
foreach (var model in models)
{
model.IsSelected = select;
}
}
private static ObservableCollection<SelectableViewModel> CreateData()
{
return new ObservableCollection<SelectableViewModel>
{
new SelectableViewModel
{
Code = 'M',
Name = "Material Design",
Description = "Material Design in XAML Toolkit"
},
new SelectableViewModel
{
Code = 'D',
Name = "Dragablz",
Description = "Dragablz Tab Control",
Food = "Fries"
},
new SelectableViewModel
{
Code = 'P',
Name = "Predator",
Description = "If it bleeds, we can kill it"
}
};
}
public ObservableCollection<SelectableViewModel> Items1 => _items1;
public ObservableCollection<SelectableViewModel> Items2 => _items2;
public ObservableCollection<SelectableViewModel> Items3 => _items3;
public event PropertyChangedEventHandler PropertyChanged;
protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
{
PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
}
public IEnumerable<string> Foods
{
get
{
yield return "Burger";
yield return "Fries";
yield return "Shake";
yield return "Lettuce";
}
}
}
}
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