I am currently using ViewStyleBand.OutlookGroupBy . When the grouped items are collapsed, I can see a summary of the items. Specifically the grouped-by column, the value the items are grouped by and the number of items contained in the tree. I would like to modify this so that it also contains some text that I choose to add on the right side. Is there a way I can modify the text shown? Also I would like to be able to control the trees so that they are not collapsed whenever the datasource is set. Any help would be appreciated.
You could use the GroupByRowDescriptionMask property.
Or, you could handle the InitializeGroupByRow event and set the Description property on the row to whatever you want.