"Could not create variable iterator" on creating ADF Parameter Form

Question

I've got a managed bean with a method;
public String cmdLogin_action(String userName, String passWord) {
// Add event code here...
return "success";
I've created a data control, but whenever I try to drag it onto a page and select "Create ADF Parameter Form", I get the dialog to specify bindings between parameters and elements in the form, then when I press OK I get a dialog entitled "Could not create widget" with the message "Could not create variable iterator".
Anyone know what's wrong?

Answer 1

Hi,
actually why do you use ADF binding for this at all? You already have the POJO managed by ADF and the textfield binding to this is
#{managedBeanName.username) for a String username with getter and setters in it. Why do you want to add a JSF lifecycle managed POJO to a ADF lifecycle managed binding that would provide no additional functionality to you, except that the two lifecycles my interfere with each other (though they are linked together).
Note that the pageDef file needs to create variables for all the arguments in a method, which then is referenced by attribute bindings.
Frank