public SelectManyDemoVm()
{
Items = new ObservableCollection <ItemVm>().AllDisposedBy(this);
SelectedIds = new ObservableCollection <string> {
"2", "5", "8", "1111", "11115", "22229", "StamItem"
};
Initialize();
SelectionCommand = MvvmRx.CreateCommand <IEnumerable <String> >(this);
RandomFiveCommand = MvvmRx.CreateCommand(this);
RemoveSelected = MvvmRx.CreateCommand <IEnumerable>(this);
ResetCommand = MvvmRx.CreateCommand(this);
ClearCommand = MvvmRx.CreateCommand(this);
SelectionCommand.Select(ienum => ienum.ToObservableCollection()).ApplyOnProperty(this, x => x.SelectedIds);
RandomFiveCommand.Subscribe(_ =>
{
var rnd = new Random();
var items = Enumerable.Range(0, 5).Select(__ => Items[rnd.Next(Items.Count)].Uid);
SelectedIds.AddRange(items);
}).DisposedBy(this);
RemoveSelected.Subscribe(x =>
{
foreach (var item in x.OfType <string>().ToArray())
{
SelectedIds.Remove(item);
}
}).DisposedBy(this);
ResetCommand.Subscribe(_ =>
{
var rnd = new Random();
var ids = Items.Select(x => x.Uid).Where(x => rnd.Next(40) < 2).ToObservableCollection();
SelectedIds = ids;
}).DisposedBy(this);
ClearCommand.Subscribe(_ =>
{
Items.Clear();
}).DisposedBy(this);
}
private void NotifyCanExecuteChanged()
{
SelectAll.NotifyCanExecuteChanged();
RemoveSelected.NotifyCanExecuteChanged();
ClearSelection.NotifyCanExecuteChanged();
}