I am not sure if I understand exactly your question, but if you want to handle the command initiated by a button with set CommandName property within an item, you could handle the server-side OnItemCommand event of the grid. Additionally, if you need to retrieve a value from the item initiating the command you could use the event arguments for getting that item and cast it to a GridDataItem.
For your convenience, following is a very basic example demonstrating the above scenario:
If the above does not help for your requirement, please provide more detailed information on what exactly you need to achieve.
Regards,
Konstantin Dikov
Telerik
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