public PropertyCollectionBinding(DataContext <T> set, int ViewGroupLayoutID, Android.Content.Context context, Expression <Func <T, ObservableCollection <U> > > property, int ItemLayoutID, VMListAdapter <U> .BindEvents BindEvents, VMListAdapter <U> .BindViewModel BindViewModel)
: base(set, ViewGroupLayoutID, (MemberExpression)property.Body, "ChildCount", null, null)
{
list = VMProperty.GetValue(Set.VM, null) as ObservableCollection <U>;
if (list == null)
{
throw new ArgumentOutOfRangeException("Property");
}
if (!(View is ViewGroup))
{
throw new ArgumentOutOfRangeException("ViewGroupLayoutID");
}
list.CollectionChanged += (sender, e) => { FromVM(); };
adapter = new VMListAdapter <U>(context, list, ItemLayoutID, BindEvents, BindViewModel);
}
public override void FromVM()
{
try
{
ObservableCollection <U> value = VMProperty.GetValue(Set.VM, null) as ObservableCollection <U>;
if (value != list)
{
throw new Exception("Changing the list reference is not supported yet");
}
// ViewGroup view = View as ViewGroup;
//
// view.RemoveAllViews();
// for (int i = 0; i < adapter.Count; i++)
// view.AddView(adapter.GetView(i, null, view));
}
catch (Exception ex)
{
LittleWatson.ReportException(ex);
}
}