VB.NET, C#
Outlook-style data grouping is extremely easy to set up for both the developer and the end-user. Xceed Grid for WinForms supports custom grouping criteria and multiple group levels. This sample demonstrates custom grouping by date range. Try grouping by size to see another custom grouping possibility.
The powerful yet easy to set up grouping capabilities of Xceed's grid
How to mimic the Outlook grid
How to create custom grouping criteria for the grid
How to derive from the GroupManagerRow to perform custom painting
How to handle the GridControl CurrentRowChanged event
C#: Xceed Samples\Xceed Grid for WinForms v#.#\CSharp\Grouping\Xceed.Grid.Samples.Grouping.csproj
VB.NET: Xceed Samples\Xceed Grid for WinForms v#.#\Visual Basic .NET\Grouping\Xceed.Grid.Samples.Grouping.vbproj