Outlook-like grouping of columns
The columns of the grid can be grouped in an Outlook-style by dragging the column
to the groupbox. Of course grouping can also be achieved by simple API-methods.
The grouped columns are sortable, the appearance of the groupbox is defined in the
renderer. When using default-renderers (XP or Vista) the grouped columns have the
You can also define your customized grouping-style in an own renderer-implementation.