Infragistics - Ultragrid - Group rows into categories

I would like to g开发者_JS百科roup rows in categories like that:

I know how to do this with OutlookGroupBy but its not possible to put the same row into severals categories

So is there a way to group rows while beeing possible to put the same row into several categories at the same time?

My ultragrid is bound to a dataset

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First thing coming to mind is to add another table to your dataset and create category rows in the new table, then add a data relation between the two and use the category table as datasource for the grid.

Thus you effectively build your own "groupings". It's a little more work but my best guess to get the grid do this is to use creation filters - which would be a lot more difficult and time consuming.