public void DragStart(DragStartData data)
{
if (data.Data == null)
{
throw new ArgumentNullException("data");
}
DataObject dataObj = data.Data.ToDataObject();
if (data.ImageBackend != null)
{
AdornedWindow = GetParentWindow();
AdornedWindow.AllowDrop = true;
var e = (UIElement)AdornedWindow.Content;
Adorner = new ImageAdorner(e, data.ImageBackend);
AdornedLayer = AdornerLayer.GetAdornerLayer(e);
AdornedLayer.Add(Adorner);
AdornedWindow.DragOver += AdornedWindowOnDragOver;
}
Widget.Dispatcher.BeginInvoke((Action)(() => {
var effect = DragDrop.DoDragDrop(Widget, dataObj, data.DragAction.ToWpfDropEffect());
OnDragFinished(this, new DragFinishedEventArgs(effect == DragDropEffects.Move));
if (Adorner != null)
{
AdornedLayer.Remove(Adorner);
AdornedLayer = null;
Adorner = null;
AdornedWindow.AllowDrop = false;
AdornedWindow.DragOver -= AdornedWindowOnDragOver;
AdornedWindow = null;
}
}));
}
public void DragStart(DragStartData data)
{
if (data.Data == null)
throw new ArgumentNullException ("data");
DataObject dataObj = data.Data.ToDataObject();
if (data.ImageBackend != null) {
AdornedWindow = GetParentWindow ();
AdornedWindow.AllowDrop = true;
var e = (UIElement)AdornedWindow.Content;
Adorner = new ImageAdorner (e, data.ImageBackend);
AdornedLayer = AdornerLayer.GetAdornerLayer (e);
AdornedLayer.Add (Adorner);
AdornedWindow.DragOver += AdornedWindowOnDragOver;
}
Widget.Dispatcher.BeginInvoke ((Action)(() => {
var effect = DragDrop.DoDragDrop (Widget, dataObj, data.DragAction.ToWpfDropEffect ());
OnDragFinished (this, new DragFinishedEventArgs (effect == DragDropEffects.Move));
if (Adorner != null) {
AdornedLayer.Remove (Adorner);
AdornedLayer = null;
Adorner = null;
AdornedWindow.AllowDrop = false;
AdornedWindow.DragOver -= AdornedWindowOnDragOver;
AdornedWindow = null;
}
}));
}