TreeView & Menu Conflict

[Scott Rakestraw]

I have a menu that I have setup to enable dragging of elements.  It all works fine until I open my menu.  If I open the menu, which is setup as click to open and then try to drag a node in my treeview I get the following error.
Sys.WebForms.PageRequestManagerServerErrorException: Conversion from string "null" to type 'Integer' is not valid.

[Veselin Vasilev]

Hi Scott Rakestraw,

I tried to reproduce the problem, but to no avail.

Please find attached my test page. Let me know what is different in your case and what should I change to reproduce the problem.

Greetings,
Veskoni
the Telerik team

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