How to initialize wdContext?

Hi Everybody,
I am trying to build a basic adobe interactive form in web dynpro for java in nwds.
I created component, window, view and then inserted interactive form as child in view.
then I created the context for the view and then fill the form with the elements of the view.
And finally I created action for form submition.
My problem is when I try to implement the action with the following code snippet, I am getting the error called wdContext might not initialize.
Code:
String name = wdContext.currentTraveDataElement().getEmployeeName();
String costcenter = wdContext.currentTraveDataElement().getCostCenter();
String city = wdContext.currentTraveDataElement().getDestinationCity();
String country =
wdContext.currentTraveDataElement().getDestinationCountry();
wdThis.wdGetAPI().getComponent().getMessageManager().reportSuccess(
"Form submitted: Name="
+ name
+ " costcenter="
+ costcenter
+ " city="
+ city
+ " country="
+ country);
Please help me out.
Thanks in advance,
regards,
Suresh.

Is the cardinality of the node is 1:1 ?
Try displaying any valueattribute in some other testnode which is not binded to interactive form ..
set some value in wdInit()
and print after a button click.
Try to test whether u r able to get value...
or,,
Map the node to component controller ..
after the buttonclick
try to retrive the component controller element and print it...
Cheers
Swathi
Do offer pts:-)

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