How to change sap-language parameter at runtime

Question

Hi
I want to create a Change Language button on an webdynpro Application. I know that the parameter is determined during url creation, but i need the to give the user the posibility of changing the language without closing the browser and logging out etc.
My idea is to us an Outbound plug assigned to lets say a Button. The plug is connected to an Inbound plug og the very same Window. So actually the Application will reload.
The action on the button is like this
data: l_language type sy-langu.
l_language = cl_wd_runtime_services=>get_url_parameter( name = 'sap-language' ).
wd_this->fire_language_plg(  ).
Then i read the current language - i.ex: E
But of course i will need to change the parameter sap-language to the new language - lets say: K
But how?

Answer 1

Hi,
As far I know, there is no way to get the current url in browser. Alternately, you can get the url parameters and then construct the url with the parameters.
write the below code in HANDLEDEFAULT method of Window:
DATA: lt_parameters TYPE tihttpnvp.
*Get URL params
  Wdevent->get_data(
  EXPORTING name = if_wd_application=>all_url_parameters
  IMPORTING value = lt_parameters ).
*Construct URL
CALL METHOD cl_wd_utilities=>construct_wd_url
     EXPORTING
       application_name = 'APPL_NAME' " your appl name
       it_parameters    = lt_parameters  " to this params itself you can append the sap-language
     IMPORTING
       out_absolute_url = lv_url.
you may refer this document: Read URL Parameters in Web Dynpro ABAP
Regards,
Kiran