http://jetlounge.net/blogs/teched/archive/2009/07/11/me-value-does-not-work-in-reporting-services-2008-ssrs.aspxMe.Value will not work in SQL Server Reporting Services 2008 (SSRS 2008) if you have some complex code behind. This is regardless whether you use that code in your expression. For example, your Tooltip might simply be =Me.Value . Not only will that notenCommunityServer 2007.1 (Build: 20917.1142)