Validate Script on Parameter ; Customize messages

Kenichi

Dear Experts

I am trying to figure out how to populate my own message when the validation script on Parameter is HIT.


On the report, I am using two parameters, transactionDateFrom and transactionDateTo, and let the use to choose the date range. For example, from 06-20-2011 to 06-30-2011.

There is a validation that I set on this transactionDateTo at Validate Script. This validation let users to choose the range of 7 days only. The javascript is as simple as the following.

BirtDateTime.diffDay(params["transactionDateFrom"].value, params["transactionDateTo"].value) <= 7


However, the problem is that I cannot choose the error message generated from this validation. It always says "Report generation failed. Cause: The validation for parameter "transactionDateTo" fails."

Could anyone teach me how to populate my own message, like "Please limit the date range for 7 days."

Thanks and Best Regards,
Ken

johnw

Without modifying the web viewer, you cannot change the error message. Your script is incorrect, the Validate event can only return a true or a false. If you need to customize the error message, consider using an external parameter page and passing the results into the web viewer. This will give you more control, and you can use Date/Time pickers to select your date range.

The following is an example parameter validation script:

if (params["NewParameter"].value == "1")
{
(true);
}
else
{
Packages.java.lang.System.out.println("Error, value of param is not '1'");

(false);
}