We have scheduled an update for the HeatMap help next week and there will be available information on how you can bind the HeatMap to your data.
In short - currently we offer three definitions - Categorical, Horizontal and Vertical. We do not offer a definition that you can use an array with. You will need to prepare your data to fit one of the definitions that we do offer.
If you have not seen our online demos, I suggest that you examine them here
. The examples demonstrate the Categorical and Horizontal definitions. For us to be able to assist you, we will need some information on how your data is presented - is it constructed of an IEnumerable of objects or simply a two-dimensional array. And you can also include some additional information on the results that you are after - snapshots and drawings are of enormous help to us.
the Telerik team
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