使用Birt报告参数验证消息 [英] Report parameter validation message with Birt

问题描述

我正在使用某些参数创建BIRT报告.我有一个int参数(月数")，值可以从1到12.

I'm creating a BIRT report using certain parameters. I have an int parameter (Number of months) which values can be from 1 to 12.

我需要检查该值是否大于12.在这种情况下，它应该向我显示一条自定义消息，而不是像现在这样显示错误.

I need to check if the value is bigger than 12. In such case it should show me a customized message and not an error like it is doing right now.

错误:

org.eclipse.birt.report.service.api.ReportServiceException: The validation for parameter "nummonths" fails.

当前脚本:

if (params["nummonths"].value > 12 )
    {
    false;
    } 
else
    {
    true;
    }

我在BIRT中创建报告以将其上传到IBM Maximo Asset Management系统.在Maximo中，也许有另一种方法可以解决此问题.

I create reports in BIRT to upload it to IBM Maximo Asset Management system. Maybe there is a different way to solve this in Maximo.

感谢您的宝贵时间！希望会帮助别人.

Thanks for your time! Hopefully will help others.

推荐答案

您可以创建一个样式为警告的动态文本，并使用诸如

You could create a dynamic text styled as a warning, and hide it (property "visibility") with an expression such

params["nummonths"].value <= 12

如果选择的国家超过10个，则在此处有这样一种方法的示例或超过10个指示器，则报告顶部会显示一个警告标签.

There is an example of a such approach here, if we select more than 10 countries or more than 10 indicators, a warning label is displayed at the top of the report.

有趣的一点是，尽管显示警告，但我们还可以创建规则来替换onCreate之类的脚本中错误的参数值.这样，报告可以正确运行.例如，在您的情况下，我们可以在脚本中执行以下操作:

An interesting point is, although a warning is displayed we can additionally create a rule to replace the wrong parameter value in a script such onCreate. This way the report can correctly run. For example in your case, we could do in a script:

if (params["nummonths"].value > 12){
  params["nummonths"].value=12;
}

或者，当参数错误时，也可以在"beforeFactory"中删除一些报表元素.

Alternatively, you could also drop some report elements in "beforeFactory" when the parameter is wrong.

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