I have a matrix in ssrs 2008 like below:
Reason #ofCancellations
[Reason] Count(Fields!CancelID.value)
It is working well. What I want is to sort this matrix based on the count columns in descending order. Normally, I was doing it by going Tablix propertoes -> Sorting. This time it does not let me write Count(Fields!CancelID.value) there, giving me error like Aggregations are not permitted while sorting a matrix. I prefer to do the sorting on the ssrs. Any advice would be appreciated.