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