Interactive sorting a list

Okay, I'm sure there is a way to do this. Basically what I have is a
List that contains a table. The list is grouping on a value so that
the table just shows some sub-details related to the grouping. What I
would like to do is sort the List. Here is an example of what I have
is the List grouping on the House Name (e.g. "My House"):
House Name:
My House
Rooms (table):
Bedroom 1 ...
Bedroom 2 ...
Living Room ...
House Name:
Bob's House
Rooms (table):
Bedroom 1 ...
Kitchen ...
So basically I want the user to be able to click on either "My House"
or "Bob's House" and change the list sort. Hope I'm making sense.
Thanks for any help!So I found one way to potentially accomplish this by setting up a
parameter, and then doing a "Jump to report" to reload the same
report, but changing the parameter that I use to control the sort of
the List. However, whenever I click on "My House" to cause the whole
jump to report thing to happen, I end up with the error "A data source
instance has not been supplied for the data source "House_Dataset"".
As some more info, this is all local processing, and I'm setting up
the data sources myself when the report is loaded for the first time
like so:
reportViewer1.LocalReport.ReportEmbeddedResource = "HouseInfo.rdlc";
reportViewer1.LocalReport.DataSources.Add(new
Microsoft.Reporting.WinForms.ReportDataSource("House_Dataset",
GetHouseDS()));
reportViewer1.LocalReport.DataSources.Add(new
Microsoft.Reporting.WinForms.ReportDataSource("Room_Dataset",
GetRooms()));
reportViewer1.RefreshReport();
So the initial load of the report is fine, but once the "jump to
report" executes, seems the reload loses (or never gets) the data
sources it needs.