private void OnDragInitialize(object sender, DragInitializeEventArgs e)
{
var treeViewItem = e.OriginalSource as RadTreeViewItem ?? (e.OriginalSource as FrameworkElement).ParentOfType<RadTreeViewItem>();
var data = treeViewItem != null ? treeViewItem.Item : (sender as RadTreeView).SelectedItem;
var payload = DragDropPayloadManager.GeneratePayload(null);
var dropDetails = new DropIndicationDetails();
dropDetails.CurrentDraggedItem = data;
DragVisual visual = new DragVisual()
{
Content = dropDetails,
ContentTemplate = data is CategoryViewModel ? this.AssociatedObject.Resources["CategoryDragTemplate"] as DataTemplate : this.AssociatedObject.Resources["ProductDragTemplate"] as DataTemplate
};
payload.SetData("DraggedData", data);
payload.SetData("DropDetails", dropDetails);
e.DragVisual = visual;
e.DragVisualOffset = e.RelativeStartPoint;
e.Data = payload;
e.AllowedEffects = DragDropEffects.All;
FrameworkElement sourceItem = e.OriginalSource as RadTreeViewItem ?? (e.OriginalSource as FrameworkElement).ParentOfType<RadTreeViewItem>();
if (sourceItem == null)
{
this.sourceItems = (IList)this.AssociatedObject.ItemsSource;
}
else
{
this.sourceItems = (sourceItem as RadTreeViewItem).ParentItem != null ?
(IList)(sourceItem as RadTreeViewItem).ParentItem.ItemsSource : (IList)this.AssociatedObject.ItemsSource;
}
this.sourceItem = sourceItem.DataContext;
this.destinationItems = this.AssociatedObject.ItemsSource as IList;
this.isTreeSource = true;
}
private void OnDragInitialize(object sender, DragInitializeEventArgs e)
{
DropIndicationDetails details = new DropIndicationDetails();
var listBoxItem = e.OriginalSource as System.Windows.Controls.ListBoxItem ?? (e.OriginalSource as FrameworkElement).ParentOfType<System.Windows.Controls.ListBoxItem>();
var item = listBoxItem != null ? listBoxItem.DataContext : (sender as System.Windows.Controls.ListBox).SelectedItem;
details.CurrentDraggedItem = item;
IDragPayload dragPayload = DragDropPayloadManager.GeneratePayload(null);
dragPayload.SetData("DraggedData", item);
dragPayload.SetData("DropDetails", details);
e.Data = dragPayload;
e.DragVisual = new DragVisual()
{
Content = details,
ContentTemplate = this.AssociatedObject.Resources["DraggedItemTemplate"] as DataTemplate
};
e.DragVisualOffset = e.RelativeStartPoint;
e.AllowedEffects = DragDropEffects.All;
}