Conditional totals for groups of rows, based on the value of a given column, in SQL Server Reporting Services
SQL Server Reporting Services seems like a bit of a dark art at times (trying to look at the markup behind an RDL file definitely is!), for 90% of report based requirements it can be used to quickly build a report structure with aggregates, counts and a selection of truly garish default themes.
More of a memo to self thank anything else, but, if you want to display something like this:
| Grouping | Item | Status | Value |
| Group 1 | Item 1 | Alive | 1 |
| Item 2 | Alive | 3 | |
| Item 3 | Dead | 2 | |
| Dead: 1 | Alive: 2 | Total: 6 | |
| Group 2 | Item 1 | Alive | 1 |
| Item 2 | Dead | 2 | |
| Dead: 1 | Alive: 1 | Total: 3 |
i.e. Have totals for the values present in the Status column, and you've got a closed list of values to build the summary line from, use this:
=SUM(IIF(Fields!Status.Value = "Alive", 1, 0))
Substituting "Dead" for the counter for dead items.