I'm creating an application that uses RadPivotMap. Its itemsource that is bound to a collection that changes based on a combobox selection. The RadPivotMap (with no GroupDefinitions) worked as I expected (the heatmap gets populated with new data). However, when I add in Group Definitions, things go wrong. The first view (with default collection) gets rendered with the proper category groupings, but when I select a new collection, the RadPivotMap just disappears. I double checked to make sure I didn't have any null Member attached to the group definition. Do you guys have any idea of what went wrong? Thanks.

Hello Feng,

One possible reason for this behavior might be a completely different structure of the data sent to the RadPivotMap control when changing the selection in the combobox. In this case, you will need to re-configure the RadPivotMap, so that its GroupDefinitions match the data. If the configuration seems to be correct, please send us a small example showing the problem, so that we can investigate it. Thanks.

Regards,
Ves
the Telerik team