public static void SetDragDropPreviewControl(DependencyObject element,DragPreview value)
{
element.SetValue(DragDropPreviewControlProperty,value);
}
private void DragSource_PreviewMouseMove(object sender,MouseEventArgs e)
{
_dragDropPreview = GetDragDropPreviewControl(sender as DependencyObject);
if (_dragDropPreview != null&&_dragDropContainer!=null)
{
_dragDropPreview.Opacity = 0.7;
_dragDropContainer.Children.Add(_dragDropPreview);
Mouse.Capture(_dragDropPreview);
Mouse.OverrideCursor = Cursors.Hand;
Canvas.SetLeft(_dragDropPreview, _initialMousePosition.X - 20);
Canvas.SetTop(_dragDropPreview, _initialMousePosition.Y - 15);
}
}