Making a filter parameter optional
When you create a prompt, you can require the user to specify a value, or you can make the value optional. It is typically good practice to make the value optional, so the user can view the report with all the data. For example, if Parameters contains a list of sales offices for the user to choose from, if the prompt is not required, the user can leave the field blank to view sales data for all the sales offices.
You can also require that the user supply a value if displaying all the data results in a very long report. A report that runs into hundreds of pages is not only difficult to read, but takes longer to generate. In Actuate BIRT Studio, a dynamic filter parameter is always optional.

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