Disable auto-expand on drag-drop

[GEB]

I am using the DragAndDrop feature of the RadTreeView.  When I drag a RadTreeItem, the tree auto-expands as I drag over other RadTreeItems that have children.  Is there any way to turn off this auto-expand feature during a drag operation?

[Miroslav]

Hi GEB,

Unfortunately in the Q2 version (2009.2 812) this behavior cannot be changed. In later internal builds and in the coming Q3 release, you can set the DropExpandDelay property to a TimeSpan of your choice, for example a large TimeSpan that will make sure that expanding does not happen.

Greetings,
Miroslav
the Telerik team

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[GEB]

The Q3 release will be perfect timing.  Thanks for putting in this new capability.

[xxx yyy]

Hi, Miroslav  of the Telerik team:

Where is the new property DropExpandDelay for RadTreeView in the Q3 release?

You mentioned that a new property  DropExpandDelay  is to be added in Q3 release to allow us to disable/delay unwanted node expand when dragging over.  I just installed the Q3 release, but am unable to find this property. 

Could you please help with this?

Thanks

[Miroslav]

Hi xxx yyy,

Can you confirm that the references in your projects have been updated?

The assembly version should be 2009.3.1103

I can confirm that the DropExpandDelay property exists and can be set in code like so:

treeview.DropExpandDelay = TimeSpan.FromMinutes(60);

Hopefully this will work for you,

Kind regards,
Miroslav
the Telerik team

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