In Reporting Services 2008 if I set the Hidden property of a textbox to "=Iif(100 = 100, True, False)" I get the following error:
Error 1 [rsUnexpectedCompilerError] An unexpected error occurred while compiling expressions. Native compiler return value: ‘[BC30179] class 'Textbox1_TextBoxExprHost' and class 'textbox1_TextBoxExprHost' conflict in class 'ReportExprHostImpl'.’. c:\dba_dashboard\v20\v20080418\dba_dashboard\dba_dashboard_2008\dba_dashboard_2008\DBA_Dashboard_Main.rdl 0 0
This "Iif" logic was valid in Reporting Service 2005. What do I have to put in a hidden property to control whether it is displayed based on the value of some field in a dataset?