Hi, I'm attempting to use various SSRS 2008 gauges in a report. When I attempt to use an expression in a tooltip such as '=Sum(Fields!ID.Value)' , the tooltip does not show up. However if I replace that expression with a static value such as '1' it pops up. It seems that an expression should work? Any reason that it would not? Thanks

Hi, I could reproduce the scenario you posted. It is caused that string type is required for the ToolTip property of the Gauge Pointer. So, please change the expression to =CStr(Sum(Fields!ID.Value)). If you have any question, please feel free to ask. Thanks, Tony Chain Tony Chain [MSFT] MSDN Community Support | Feedback to us Get or Request Code Sample from Microsoft Please remember to mark the replies as answers if they help and unmark them if they provide no help.