WebDataTree FAQ:

1.    Q: How to use a WebDataMenu as a context menu for WebDataTree:
A: http://samples.infragistics.com/aspnet/Samples/WebDataMenu/Display/Context-Menu/Default.aspx?cn=data-menu&sid=71743f53-70a6-4e3e-8eae-4c24c1b404f2 

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2.   Q: Showing checkboxes only on child nodes:
A: http://community.infragistics.com/forums/t/36625.aspx

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3.   Q: How to clear all the items in a WebDataTree on the client:
A: http://blogs.infragistics.com/forums/t/63903.aspx

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4.    Q: Adding nodes client-side:
A: http://forums.infragistics.com/forums/p/63068/319486.aspx

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5.   Q: Manual Load On Demand with WebDataTree:
A: http://samples.infragistics.com/aspnet/Samples/WebDataTree/Performance/ManualLoadOnDemand/Default.aspx?cn=data-tree&sid=c257cd9c-1c5a-4159-aa51-ff8ea8386395