private void Register()
{
itemsPresenter = listBox.FindVisualChildOfType <ItemsPresenter>();
if (itemsPresenter == null)
{
return;
}
var adornerLayer = AdornerLayer.GetAdornerLayer(itemsPresenter);
if (adornerLayer == null)
{
return;
}
selectionRect = new SelectionAdorner(itemsPresenter);
adornerLayer.Add(selectionRect);
selector = new ItemsControlSelector(listBox);
autoScroller = new AutoScroller(listBox);
autoScroller.OffsetChanged += OnOffsetChanged;
// The ListBox intercepts the regular MouseLeftButtonDown event
// to do its selection processing, so we need to handle the
// PreviewMouseLeftButtonDown. The scroll content won't receive
// the message if we click on a blank area so use the ListBox.
listBox.PreviewMouseLeftButtonDown += OnPreviewMouseLeftButtonDown;
listBox.MouseLeftButtonUp += OnMouseLeftButtonUp;
listBox.MouseMove += OnMouseMove;
}
private bool Register()
{
this.scrollContent = FindChild <ScrollContentPresenter>(this.listBox);
if (this.scrollContent != null)
{
this.autoScroller = new AutoScroller(this.listBox);
this.autoScroller.OffsetChanged += this.OnOffsetChanged;
this.selectionRect = new SelectionAdorner(this.scrollContent);
this.scrollContent.AdornerLayer.Add(this.selectionRect);
this.selector = new ItemsControlSelector(this.listBox);
// The ListBox intercepts the regular MouseLeftButtonDown event
// to do its selection processing, so we need to handle the
// PreviewMouseLeftButtonDown. The scroll content won't receive
// the message if we click on a blank area so use the ListBox.
this.listBox.PreviewMouseLeftButtonDown += this.OnPreviewMouseLeftButtonDown;
this.listBox.MouseLeftButtonUp += this.OnMouseLeftButtonUp;
this.listBox.MouseMove += this.OnMouseMove;
}
// Return success if we found the ScrollContentPresenter
return(this.scrollContent != null);
}
private bool Register()
{
UpdateScrollContent();
if (scrollContent != null)
{
autoScroller = new AutoScroller(listBox);
autoScroller.OffsetChanged += OnOffsetChanged;
selector = new ItemsControlSelector(listBox);
// The ListBox intercepts the regular MouseLeftButtonDown event
// to do its selection processing, so we need to handle the
// PreviewMouseLeftButtonDown. The scroll content won't receive
// the message if we click on a blank area so use the ListBox.
listBox.PreviewMouseLeftButtonDown += OnPreviewMouseLeftButtonDown;
listBox.MouseLeftButtonUp += OnMouseLeftButtonUp;
listBox.MouseMove += OnMouseMove;
}
// Return success if we found the ScrollContentPresenter
return(scrollContent != null);
}
