Some special points in Get_V methods in advance searches

GET_V methods locations:

We all know, if we want to add value help to a field, or replace standard value help to a field, we can make use of GET_V method. For example, in the sales order creation screen, the 'Status' field is a DDLB field, it has some values:

This status field comes from context node BTSTATUSH of view BT115H_SLSO/Details:

If we want to change standard value help, we can make enhancement on component BT115H_SLSO and view 'Details', enhance context node BTSTATUSH and redefine method CL_BT115H_S_DETAILS_CN05->GET_V_STATUS_CURRENT.  In the same way, we can also add value helps by adding GET_V methods to those fields which have no value help originally.

However, there are some special cases in which the GET_V methods are not attached to the context node classes. For example, for the search field 'Sales Org. ID' has a value help:

This field is attribute STRUCT.SALES_ORG of context node BTQSLSORD in view BT115S_SLSO/SlsOrdSQ. This attribute has no GET_V method:

This is because there is a method GET_V_SALES_ORG in class CL_BT115S_S_SLSORDSQ_IMPL which actually locates in class CL_BTSLS_ADVS_CNTRL:

Of course, class CL_BT115S_S_SLSORDSQ_IMPL can also redefine its own logics in the GET_V methods. For example, CL_BTSLS_ADVS_CNTRL->GET_V_EMPLOYEE_RESP is redefine into CL_BT115S_S_SLSORDSQ_IMPL->GET_V_EMPLOYEE_RESP.

In SERVICEPRO business role, in search service order, GET_V methods exist in CL_BT116S_S_ADVANCEDSP_IMPL/CL_BTSRV_ADVS_CNTRL too.

GET_V methods types:

Inside the GET_V methods, there are different types to render the value helps:

1. make use of value help id. The example is CL_BT116S_S_ADVANCEDSP_IMPL/CL_BTSRV_ADVS_CNTRL->GET_V_SALES_ORG
2. make use of ddlb. The example is CL_BT116S_S_ADVANCEDSP_IMPL/CL_BTSRV_ADVS_CNTRL->GET_V_SERVICE_ORG
   
3. make use of event triggers. For example, in method CL_BT116S_S_ADVANCEDSP_IMPL/CL_BTSRV_ADVS_CNTRL->GET_V_CATEGORY_ID, it defines event 'SELECT_CATEGORY' (if_crm_srqm_uiu_const=>gc_event_select_category).
   
   Of course, the event should be handled somewhere. Here it is CL_BTSRV_ADVS_CNTRL->DO_HANDLE_EVENT.
   

Another usage for the GET_V methods are controlling operaters: For example: in method CL_BT116S_S_ADVANCEDSP_IMPL/CL_BTSRV_ADVS_CNTRL->GET_V_SERVICE_ID.