/// <summary>
/// Removes the insertion adorner.
/// </summary>
private void RemoveInsertionAdorner()
{
if (this.insertionAdorner != null)
{
this.insertionAdorner.Detach();
this.insertionAdorner = null;
}
}
/// <summary>
/// Creates or updates the insertion adorner.
/// </summary>
private void CreateOrUpdateInsertionAdorner()
{
if (this.insertionAdorner != null)
{
this.insertionAdorner.IsInFirstHalf = this.isInFirstHalf;
this.insertionAdorner.InvalidateVisual();
}
else
{
if (this.targetItemContainer != null)
{
// Here, I need to get adorner layer from targetItemContainer and not targetItemsControl.
// This way I get the AdornerLayer within ScrollContentPresenter, and not the one under AdornerDecorator (Snoop is awesome).
// If I used targetItemsControl, the adorner would hang out of ItemsControl when there's a horizontal scroll bar.
var adornerLayer = AdornerLayer.GetAdornerLayer(this.targetItemContainer);
this.insertionAdorner = new InsertionAdorner(
this.hasVerticalOrientation, this.isInFirstHalf, this.targetItemContainer, adornerLayer);
}
}
}
/// <summary>
/// Removes the insertion adorner.
/// </summary>
private void RemoveInsertionAdorner()
{
if (this.insertionAdorner != null)
{
this.insertionAdorner.Detach();
this.insertionAdorner = null;
}
}
/// <summary>
/// Creates or updates the insertion adorner.
/// </summary>
private void CreateOrUpdateInsertionAdorner()
{
if (this.insertionAdorner != null)
{
this.insertionAdorner.IsInFirstHalf = this.isInFirstHalf;
this.insertionAdorner.InvalidateVisual();
}
else
{
if (this.targetItemContainer != null)
{
// Here, I need to get adorner layer from targetItemContainer and not targetItemsControl.
// This way I get the AdornerLayer within ScrollContentPresenter, and not the one under AdornerDecorator (Snoop is awesome).
// If I used targetItemsControl, the adorner would hang out of ItemsControl when there's a horizontal scroll bar.
var adornerLayer = AdornerLayer.GetAdornerLayer(this.targetItemContainer);
this.insertionAdorner = new InsertionAdorner(
this.hasVerticalOrientation, this.isInFirstHalf, this.targetItemContainer, adornerLayer);
}
}
}
