TemplatedItemsList <TView, TItem> InsertGrouped(object item, int index) { var children = item as IEnumerable; var groupProxy = new TemplatedItemsList <TView, TItem>(this, children, _itemsView, _itemTemplateProperty); if (GroupDisplayBinding != null) { groupProxy.SetBinding(NameProperty, GroupDisplayBinding.Clone()); } else if (GroupHeaderTemplate == null && item != null) { groupProxy.Name = item.ToString(); } if (GroupShortNameBinding != null) { groupProxy.SetBinding(ShortNameProperty, GroupShortNameBinding.Clone()); } groupProxy.BindingContext = item; if (GroupHeaderTemplate != null) { groupProxy.HeaderContent = (TItem)GroupHeaderTemplate.CreateContent(groupProxy.ItemsSource, _itemsView); groupProxy.HeaderContent.BindingContext = groupProxy.ItemsSource; //groupProxy.HeaderContent.BindingContext = groupProxy; //groupProxy.HeaderContent.SetBinding (BindingContextProperty, "ItemsSource"); } else { // HACK: TemplatedItemsList shouldn't assume what the default is, but it needs // to be able to setup bindings. Needs some internal-API tweaking there isn't // time for right now. groupProxy.HeaderContent = _itemsView.CreateDefault(ListProxy.ProxiedEnumerable); groupProxy.HeaderContent.BindingContext = groupProxy; groupProxy.HeaderContent.SetBinding(TextCell.TextProperty, "Name"); } SetIndex(groupProxy.HeaderContent, index); SetIsGroupHeader(groupProxy.HeaderContent, true); _itemsView.SetupContent(groupProxy.HeaderContent, index); _templatedObjects.Insert(index, groupProxy.HeaderContent); _groupedItems.Insert(index, item, groupProxy); groupProxy.CollectionChanged += OnInnerCollectionChanged; return(groupProxy); }
void OnShortNameBindingChanged() { if (!IsGroupingEnabled) { return; } if (GroupShortNameBinding != null && _shortNames == null) { _shortNames = new ShortNamesProxy(this); } else if (GroupShortNameBinding == null && _shortNames != null) { _shortNames.Dispose(); _shortNames = null; } if (_groupedItems != null) { if (GroupShortNameBinding == null) { foreach (TemplatedItemsList <TView, TItem> list in _groupedItems.Values) { list.SetValue(ShortNameProperty, null); } return; } foreach (TemplatedItemsList <TView, TItem> list in _groupedItems.Values) { list.SetBinding(ShortNameProperty, GroupShortNameBinding.Clone()); } } if (_shortNames != null) { _shortNames.Reset(); } }