protected virtual void ProcessTargetItem(DragDropManagerBase sourceManager, Point pt)
{
TargetItem = GetVisibleHitTestElement(pt);
if (TargetItem == null)
{
sourceManager.ViewInfo.DropTargetRow = null;
sourceManager.SetDropTargetType(DropTargetType.DataArea);
ShowDropMarker(ListBox, TableDragIndicatorPosition.None);
return;
}
var position = Mouse.GetPosition(TargetItem);
double height = TargetItem.ActualHeight;
if (position.Y < height / 2)
{
sourceManager.SetDropTargetType(DropTargetType.InsertRowsBefore);
ShowDropMarker(TargetItem, TableDragIndicatorPosition.Top);
}
else
{
sourceManager.SetDropTargetType(DropTargetType.InsertRowsAfter);
ShowDropMarker(TargetItem, TableDragIndicatorPosition.Bottom);
}
sourceManager.ViewInfo.DropTargetRow = TargetItem.Content;
}
public HitTestResultBehavior CallBack(HitTestResult result)
{
ListBoxEditItem item = LayoutHelper.FindParentObject <ListBoxEditItem>(result.VisualHit);
if (item != null)
{
Element = item;
return(HitTestResultBehavior.Stop);
}
return(HitTestResultBehavior.Continue);
}
static object CoerceFileTypeChanged(DependencyObject d, object baseValue)
{
ShapesExporterViewModel viewmodel = d as ShapesExporterViewModel;
if (viewmodel == null)
{
return(DefaultFileType);
}
ListBoxEditItem item = baseValue as ListBoxEditItem;
return(item == null ? viewmodel.SelectedFileType : item.Content);
}
