I have a problem with the automatic refreshing of grouping of a GridGroupingControl using DataBinding and custom cell types. In the attached example I have a BindingList with persons. A person has simple properties like "firstname" and "lastname" (both strings), and an complex property "adress" (class Adress). The "adress" has an own cell type, which parses an entered adress. If I group by "adress" and change the "adress" of an entry, the grouping of the grid is not updated automatically. The refresh of the grouping by "firstname" or "lastname" works as I expect.
The class "adress" implements IComparable.
Thanks.
GGC_RefreshGrouping.zip