Yes, the behavior is pretty much the same in SL4 RTM: user will see the standard cursor change at plugin level, ie, if there is one control with AllDrop set to true, the whole plugin will display the allow drop cursor; but it is not control specific, and it is not customizable, ie, cursor won’t change for controls with AllDrop set to false, and there is no DragDropEffects to set in DragEventArgs. We may implement more DnD functionalities in future releases.

Thanks,

-Ning

Question: in your original article you said that in the Silverlight 4 Beta “there is no visual for the dragged object or DragDropEffects.”

Is this also the case in the final Silverlight 4 release?

When dragging an image from Windows Explorer to a Silverlight ListBox, it will be extremely useful to customize the cursor appearance, and also have a different style cursor depending upon whether the target element has AllowDrop enabled or not.

Thanks!

is it possible to prevent the DataGridDragDropTarget from starting a drag-action?

What I whant is to use one DataGrid only as DragSource and another one only as DropTarget. And the DropTarget-only-DataGrid should not show this “StartDragShadow” when pressing and moving the mouse over an item.

Thanks!
Steven

Regards

Rudy

Please notice a key differences between the two drag and drop implementations: the Toolkit version is implemented on top of runtime, so it requires a *DragDropTarget container, and works only between elements within a Silverlight plugin control. The Toolkit implementation leverages runtime drag and drop API when it can, like in Silverlight 4 Toolkit, Microsoft.Windows.DragDrop.AllowDrop uses UIElement.AllowDrop property. While the runtime exposes drop target events for all UIElement, the Toolkit implementation already handles those events for important controls like DataGrid, ListBox and TreeView, so it is really easy to use. We’ve made sure the APIs are as compatible as possible, so people can use both together for now, and migrate to runtime implementation rather easily as runtime exposes more drag and drop functionalities. This is also the general approach of Silverlight Toolkit, as I called out in earlier post Silverlight Controls.