在BIRT报表中设置页面变量

Question

I have a BIRT report I'm calling with a report engine in GWT. I can set a report parameter with

task.setParameterValue("orderNumber", orderNum);

But how can I set a report variable value? I don't see anything in the API for setting one and I'm at a loss. thanks.

Answer 1

You can't, a variable is internal in a report, otherwise it is a parameter. A workaround would be to initialize your report variable from a parameter: set the default value of the variable as "javascript expression" and just drag&drop a parameter. It will create an expression such

params["myParamVariable"].value

We can then use the report engine API to set the value of "myParamVariable"

Answer 2

您必须在Birt引擎的数据资源管理器中的报表参数中添加相同名称的参数，然后才能使用params["orderNum"].value