This document could be used for beginners for Webclient UI development who wants to know how to implement value help.
Example:
When clicking F4 on BusinessPartner ID,
a new window pops up as value help, you can click search button to get a list of business partners and choose one of them:
Once you mark the first search result, both ID and name would be automatically written back to your host page.
Step1: Implement GET_P method for field “BusinessPartner ID”:
Implement GET_V method:
Step2: Create a new outbound plug OP_PARTNER_SEARCH: ( the name must equal to the value passed to exporting parameter in GET_V method )
define a private attribute mv_popup with TYPE REF TO if_bsp_wd_popup in your view controller.
Implement the following code:
Step3: in step2 we try to open the popup window defined in component usage BPSearch, so we have to define that usage in runtime repository:
in code it is defined when value help window is closed, event CLOSEPOPUP will be triggered. So we create this event handler and implement it:
In the event handler, we get the selected BP information from context node PARTNER of component BP_HEAD_SEARCH and
set the content into our own field “BusinessPartner ID” and “Employee Name”:
Note: when you create the outbound plug OP_PARTNER_SEARCH in step2, the method is created with Protected by default. You should change the visibility manually to Public:
or else you will meet with CX_BSP_WD_INCORRECT_IMPLEMENT exception, since in the runtime the framework would expect to call it as public method as below: