How to display Grouped data in a datagrid?

[Steve]

WINDOWS C#

if this is my dataset:

Group | Item | Value
------------------------------------------------------------
Identity | Name | Steven Smith
Identity | Age | 27
Identity | Eyes | 2
Location | Address | 1 The Street
Location | Town | Walsall

How can I show this in a windows form, without repeating the Group, so it
would look like this:

Group | Item | Value
------------------------------------------------------------
Identity | Name | Steven Smith
| Age | 27
| Eyes | 2
Location | Address | 1 The Street
| Town | Walsall

I have seen this done in a web environment, but how could I achieve this
idea in a windows form? I am currently using a DataGrid, but is there a
better way to achieve this look of displaying the data grouped in this way?
A third party control out there? Any help would be much appreciated because
I just cant think how best to show this data on the screen.

Many thanks

Steve