How do I set expression for a parmater in sql server reporting services?

Hi All,

How do i 开发者_运维技巧set expression for a parameter in sql server reporting services r2?

Is it even possible?

The expression button is not even there.

Thanks.

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I solved this through the web application, In the web application I use the report-viewer control to gain accesses to the parameters. With the parameters at hand I have complete control on what should be displayed (exression It's a workaround but it works.

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At design time in the parameters dialogue box just type in the expression for the default value if the button isn't there.

= Now()

If you mean at runtime, then no you can't.