Besides HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Microsoft SDKs\Silverlight\v4.0\AssemblyFoldersEx\RedControl\Toolbox, you will also need to set HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Microsoft SDKs\Silverlight\v4.0\AssemblyFoldersEx\RedControl’s default value to its install folder. As to internal classes on toolbox, it was a bug with TCI (many of the internal controls are from non TK assemblies), and should be mostly worked around in latest TK release.

Thanks,

-Ning

Yes, this only works for VS2010. For VS2008, you have to use TCI, and it is not guaranteed to work. If you develop for Silverlight, your best option is to upgrade to VS2010.

Thanks,

-Ning

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

if you set the property to 11 via properties window and it is persisted to xaml, but Blend resets it to 0, then it sounds like a Blend issue: after all, the properties windows and xaml view should be consistent.

Thanks,

-Ning

I made a test with your control inside Blend 4. After I set the property inside property window to 11, it resets the value back to 0, but inside XAML there is still 11.

Is that a Blend 4 bug?

Thanks,
Ralf

The problem is that I can show progress bar in the beginning and hide it in the end of InitializeDefaults method, but this method consume only a little part of the time needed to generate the control.

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