Hi Durga,
As I said in my previous post, the Hierarchical data source was added in Kendo UI Q2 Official release - please make sure you use the
2012.2.710 version. If the version is the correct one and the problem still persist, please provide a small but runnable project that reproduces the issue. This way I will be able to investigate the case and advice you further.
Greetings,
Iliana Nikolova
the Telerik team
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