Quite an old question, but I stumbled upon similar problem recently.
Though SSRS does not allow you to add interactive sorting on dynamic columns in a matrix, you can simulate similar behaviour. I've figured out a method, which require the report to fire itself (through go to report action) sorted on desired column.
I will use a bit more complicated example to show the full functionality of this solution.
Imagine an online bookstore, which would like a report showing their customers (rows), number of books (values) and total value of books (values), which they bought, by category – Fiction/NonFiction in my example (columns). Of course they want to see their best customers, so the sort will be descending.
Example data that we are getting from the database:
UserID Columns BooksCount BooksValue
AliBaba Fiction 2 25.96
AliBaba NonFiction 4 112.00
ThomasJefferson Fiction 3 36.83
ThomasJefferson NonFiction 1 46.80
BillCosby Fiction 10 536.47
BillCosby NonFiction 2 26.87
The report will look like this:
[Columns]
Books Count Books Value
[UserID] Values Values
I would like the report to be able to sort by “Books Count” or “Books Value” for any Column. Here are the steps to follow:
You need to add parameters that will store the name of the column to sort on - @SortColumn
and the metric name (counts or values) to sort on - @SortMetric
.
Go to “Books Count” textbox and add action "Go to report" specifying the same report. Add @SortColumn
parameter with a value from [Columns]
field in the underlying dataset. Add @SortMetric
parameter with value set to “BooksCount”. Similar for “Books Value” textbox.
You can adjust the column header text with following expression, which will show the user on which column data is sorted:
= IIf( Parameters!SortColumn.Value=Fields!Columns.Value And Parameters!SortMetric.Value = "BooksCount" ," ^","")
This was for “Books Count”, you can add similar for “Books Amount”
Finally the magic that happens on the database site. Source table is named [Sales]
. Apart from the sorting, below code allows to select only top N rows if your dataset is larger.
You can create a dataset using this code or better create a stored procedure. And join report parameters with dataset parameters.
DECLARE @TopN INT = 50
;WITH Users_Sorted AS
(
SELECT
UserID
,ROW_NUMBER() OVER (ORDER BY
CASE @SortMetric
WHEN 'BooksCount' THEN Sales.BooksCount
WHEN 'BooksValue' THEN Sales.BooksValue
END DESC) AS ROWNO
FROM Sales
WHERE
Sales.Columns = @SortColumn
)
,Sales_MAIN AS
(
SELECT
Sales.UserID
,Sales.Columns
,Sales.BooksCount
,Sales.BooksValue
,ISNULL(Users_Sorted.ROWNO,
ROW_NUMBER () OVER (PARTITION BY Sales.Columns ORDER BY Sales.UserID ASC)
) AS ROWNO
FROM Sales
LEFT JOIN Users_Sorted ON Sales.UserID = Users_Sorted.UserID
)
SELECT * FROM Sales_MAIN WHERE ROWNO <= @TopN ORDER BY ROWNO