Thank you for the suggestion. At this stage the implementation of such event is still not scheduled, but this idea sounds really good and I will suggest to send it as a feature request at our UserVoice forum
. This way the community would be able to vote and comment it - its implementation depends on the users feedback and the number of votes.
Meanwhile, for your scenario you could use the change event of the dataSource which fires when the data is changed.
the Telerik team
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