RowGroup properties for ASC and Desc order

yes, Pervisously we seen SaleTerritory Region as asc order, now we will make as desc for this.

then

we want to provide as a parameter to enduser then need to create parameter (sortorder)

Then

based on enduser selection of "Ascending" or "Descnding" sorting will be performed.

Asc :expression=IIf(Parameters!SortOrder.Value="Asc",Fields!SalesTerritoryRegion.Value,1)
Desc  : expression = IIf(Parameters!SortOrder.Value="Desc",Fields!SalesTerritoryRegion.Value,1)