private void BeginDrag(FrameworkElement dragContainer)
{
_dragItem = dragContainer;
if (_dragItem == null)
{
return;
}
// get the index of the item (and make sure that it is a valid child)
_dragItemIndex = this.ItemContainerGenerator.IndexFromContainer(_dragItem);
if (_dragItemIndex == -1)
{
return;
}
// create an adorner
_dragAdorner = new DragPreviewAdorner(_dragItem, _dragItem);
_dragAdorner.IsHitTestVisible = false;
this.AdornerLayer.Add(_dragAdorner);
// tell the item it's dragging and hide it
SetIsDragging(_dragItem, true);
_dragItem.Visibility = Visibility.Hidden;
// get the current location of the mouse
_mouseDown = Mouse.GetPosition(this);
// set mouse capture (so that we are dragging)
Mouse.Capture(this);
_isDragging = true;
// raise an event to signal that we've started ragging
RaiseReorderBeginEvent();
}
private void BeginDrag(FrameworkElement dragContainer)
{
_dragItem = dragContainer;
if (_dragItem == null) return;
// get the index of the item (and make sure that it is a valid child)
_dragItemIndex = this.ItemContainerGenerator.IndexFromContainer(_dragItem);
if (_dragItemIndex == -1) return;
// create an adorner
_dragAdorner = new DragPreviewAdorner(_dragItem, _dragItem);
_dragAdorner.IsHitTestVisible = false;
this.AdornerLayer.Add(_dragAdorner);
// tell the item it's dragging and hide it
SetIsDragging(_dragItem, true);
_dragItem.Visibility = Visibility.Hidden;
// get the current location of the mouse
_mouseDown = Mouse.GetPosition(this);
// set mouse capture (so that we are dragging)
Mouse.Capture(this);
_isDragging = true;
// raise an event to signal that we've started ragging
RaiseReorderBeginEvent();
}
