Pass Values between 2 web dynpro applications

Question

Hey,
I have a created an application which display data from table 1, I am capturing the value ON_LEAD_SELECT
and calling another application2,
I wanna be able to export the value selected from applciation1 into
applciation2.
This what I tried to export selected value, it didn't work through:
in application 1:
construct a URL
CALL METHOD cl_wd_utilities=>construct_wd_url
    EXPORTING
      application_name = 'APPLICATION2'
    IMPORTING
      out_absolute_url = str.
concatenate str '?' 'carrid =' ls_sflight-carrid into str.
get reference of window from component
l_cmp_api = wd_comp_controller->wd_get_api( ).
l_window  = l_cmp_api->get_window_manager( ).
get reference of window of target component
result = l_window->create_external_window(
url    = str ).
result->open( ).
Thanks in advance

Answer 1

>
Abdul kourani wrote:
> Hi Thomas,
>
> Thanks for the quick reply. I used the method you recommended
>
> call method cl_http_server=>append_field_url
>           exporting
>             name  = 'carrid'
>             value = ls_sflight-carrid
>           changing
>             url   = str.
>
> but Im getting a not-compatible type error , since VALUE is expected to be  string.
> lets say hypothetically I successfully exported the value from application 1, how can I possibly
> read it in application 2
>  for example:
>
> * read data
>   select * from sflight into table lt_data
>   WHERE carrid = ????.
>
> Thanks
Whatever value you have, you need to put into string format anyway.
Just declare a temporary string field and move yoru carrid value to it before calling the append_field_url method.
From application 2 you read the URL parameters using the start plug of the window.
http://help.sap.com/saphelp_nw70ehp1/helpdata/en/48/ca3351508f04e7e10000000a42189c/frameset.htm
http://help.sap.com/saphelp_nw70ehp1/helpdata/en/48/b44e6ae8603095e10000000a421937/frameset.htm