BC4J, row tag, dynamically setting the action

Question

I have created a DataPage in my BC4J app. It is an Edit Form which creates for me two JSP pages - SitesView_Edit.jsp and SitesView_EditSubmit.jsp. I have modified the Edit page to send through a parameter holding a calue of either "Update" or "Delete" depending on the action chosen by the user.
The Row data tag in the Submit page looks something like this:
<jbo:Row id="myrow" datasource="ds" rowkeyparam="MyRowKey" action="Update" >
I want to change it to use the parameter passed in as the action attribute. Following the example in the help file, I define a local variable in Java as dbAction, put the parameter value inside it and change the row tag as follows:
<jbo:Row id="myrow" datasource="ds" rowkeyparam="MyRowKey" action="<%=dbAction%>" >
Unfortunately, this won't even compile!! It gives me a NullPointerException at compile time. Very strange. Any ideas, anyone??? Is this a bug?
As a workaround I have simply created an if statement and branch to either a hardcoded Update row tag or a hardcoded Delete row tag depending on the parameter value.
Thanks,
Simon Cullen
Western Australia

Answer 1

Since you cant pass in the action as a parameter, you can use a scritplet to decide which statement to execute or use two jsp pages, one for each action.