can't get BAPI return node in web dynpro!!

[Former Member]

I'm calling BAPI in web dynpro, I already map the <BAPIName>_Input->Output->Return to our custom controller context. I can get the value of some other output parameters in Output node, but can't get the return node.

wdContext->currentOutputElement is Ok, but wdContext->currentBapiReturnElement is null, what is the problem??!!!

Can anybody give me an hint, or give me a example to access the return value of Bapi??

Thank you very much!

Regards,

Xiaoming Yang

[Former Member]

Can anybody give me an example getting return message of a BAPI? It is a structure called Bapireturn contains Code, Message, Type and so on fields.

Thank you very very much!!

Regards,

Xiaoming

[Yashpal]

Hi,

First check the RFC by executing from R/3 side means test it that it return the output table of bapireturn in R/3 side.

Regards,

Yashpal

[Former Member]

Hi Yashpal,

thanks for your reply, the BAPI works fine under R3.

Actually I've already solved the problem. It is caused by model--controller data mapping.

[Former Member]

did you invalidate the response node after executing the bapi call? sort of...

wdContext.currentBapiResponse().invalidate():

this will tell the context node that it must refresh it's contents with the return values stored in the underlying bapi model object.

Hope this helps. Kind Regards,

Vitaliano

[Former Member]

Hi Vitaliano,

Thanks for your reply.

yes, I've call the invalidate method, like this:

wdContext.currentBapi_Trip_Create_From_Data_InputElement().modelObject().execute();

//wdContext.nodeBapireturn().invalidate();//do I need this?

wdContext.nodeOutput().invalidate();

But it still can't work!

The return node is a child note of Output, does it ok?

Thank you!