Communication between components

Question

Hi all,
I have a webdynpro that calls to another webdynpro component. In the second component i want to choose some data and its data must be returned to the first component.
I don't know how can i do it...
may be i need to add the second component in the "used webdynpro components" of the first. and create a method as event handler to get this data, but i don't know how can i trigger this events or what i need to do...
do you know how can i do it? Where do I start?. what steps should I follow ..
Thanks in advance.

Answer 1

Hi ,
To transfer data from componentB to component A , you need to declare Component B in component A as used components.
The context node in component controller of componentB has to be made as interface, so that it will have its visibility outsite componentB.
So to transfer data from context node of componentB to componentA ,you need to define mapping of context node from compB to CompA, no extra code needed to pass value . Once the value is filled in context node of componentB it will automatically be populated in component A.
If you need to transfer a variable, create a method in component controller of componentB and declare the method as interface , So it has its scope outside component B .You can call this method from component A ,thus the value is transfered.
Regards
Karthiheyan M