I found in documentation in section GridView/Populating with Data/Using Data Virtualization quote:
What mean, in details, "is not fully supported"? How it reveals?
How can I cope with it? Maybe loading data separately for Distinct Values section using OnRadGridViewDistinctValuesLoading event can help?(gridview-filtering-howto-display-all-distinct-values)?
Filtering on Distinct Values is not fully supported when using VirtualQueryableCollectionView. We suggest configuring with ShowDistinctFilters="False". That way only filtering through the Field Filters will be enabled. You can check the basic filtering section as a reference on the filtering support. There you can also find more information on how to filter through the Field Filters.
What mean, in details, "is not fully supported"? How it reveals?
How can I cope with it? Maybe loading data separately for Distinct Values section using OnRadGridViewDistinctValuesLoading event can help?(gridview-filtering-howto-display-all-distinct-values)?