Change Shared Data Source at runtime based on a parameter

I have 11 databases identical databases except that they have different usename and passwords. I want to setup 11 Shared Data Sources and set the report to choose a different Shared Data Source based off of a parameter. Is this possiable

Changing shared data sources dynamically is currently not supported.

The closest you can get through expressions in the report is to use a non-shared data source with an expression-based connection string. This option and other options are discussed in more detail in this relating thread: http://forums.microsoft.com/MSDN/ShowPost.aspx?PostID=16395&SiteID=1

-- Robert