private void addNextItems(VirtualizingIEnumerable <T> sourceToAdd, int nItems)
{
sourceToAdd.AddNextItems(nItems);
if (!sourceToAdd.HasNext)
{
// all items from IEnumerable have been added
this.itemsSourceTotalCount = sourceToAdd.Count;
}
}
public void SetItemsSource(IEnumerable <ITreeNode> value)
{
if (value == null)
{
return;
}
this.itemsSource = value;
this.lazyGrid = new LazyItemsControl <ITreeNode>(this.dataGrid, InitialItemsCount);
// // HACK for updating the pins in tooltip
// var observable = new List<ITreeNode>();
// this.itemsSource.ForEach(item => observable.Add(item));
//
// // verify if at the line of the root there's a pin bookmark
// ITextEditorProvider provider = WorkbenchSingleton.Workbench.ActiveViewContent as ITextEditorProvider;
// var editor = provider.TextEditor;
// if (editor != null) {
// var pin = BookmarkManager.Bookmarks.Find(
// b => b is PinBookmark &&
// b.Location.Line == logicalPosition.Line &&
// b.FileName == editor.FileName) as PinBookmark;
//
// if (pin != null) {
// observable.ForEach(item => { // TODO: find a way not to use "observable"
// if (pin.ContainsNode(item))
// item.IsPinned = true;
// });
// }
// }
var source = new VirtualizingIEnumerable <ITreeNode>(value);
lazyGrid.ItemsSource = source;
this.dataGrid.AddHandler(ScrollViewer.ScrollChangedEvent, new ScrollChangedEventHandler(handleScroll));
if (this.lazyGrid.ItemsSourceTotalCount != null)
{
// hide up/down buttons if too few items
btnUp.Visibility = btnDown.Visibility =
this.lazyGrid.ItemsSourceTotalCount.Value <= VisibleItemsCount ? Visibility.Collapsed : Visibility.Visible;
}
}
public void SetItemsSource(IEnumerable <ITreeNode> value)
{
if (value == null)
{
return;
}
this.itemsSource = value;
this.lazyGrid = new LazyItemsControl <ITreeNode>(this.dataGrid, InitialItemsCount);
var source = new VirtualizingIEnumerable <ITreeNode>(value);
lazyGrid.ItemsSource = source;
this.dataGrid.AddHandler(ScrollViewer.ScrollChangedEvent, new ScrollChangedEventHandler(handleScroll));
if (this.lazyGrid.ItemsSourceTotalCount != null)
{
// hide up/down buttons if too few items
btnUp.Visibility = btnDown.Visibility =
this.lazyGrid.ItemsSourceTotalCount.Value <= VisibleItemsCount ? Visibility.Collapsed : Visibility.Visible;
}
}