Unable to Pass Parameters to a new Window

Dear All,

I have a problem in one of my WebDynpro project, where i need to display the Help (ToolTip) for a certain field, for which i have created a new Window and a new Application and a view where the Text of the Tooltip is displayed.

On Click of the Link in the page, a new Window should be opened and the text is to be displayed.

the code has been written to open a new window. I have used an External Window for achieving the same.

All the views have been created under a single component and hence i have done a Context binding from all the views to the Controller for passing Values which works fine for all view displayed in the same browser window.

but when the Help View opens in a separate window after the click of the LinktoAction UI Element, the data does not flow to the new view and any access made to the Controller's attribute results in a nullpointerexception.

I have also tried passing the variable through the URL but since the String to be displayed contains more than 1000 chars, it throws me an exception when i try to do it.

Kindly let me know as to how a variable can be passed to a new Window without having to execute the RFC again from the new View

Regards,

Poojith MV