In this step, you will change the Employees filter to listen for the EMPLOYEE_CHANGED event.

1. Locate and open the Employees filter iiiCOM04.
2. Display the Source tab.
3. Register the EMPLOYEE_CHANGED event in the UHandleEvent webroutine:
   

   Invoke Method(#avFrameworkManager.avRegisterEvent) Named(EMPLOYEE_CHANGED) Signalaswamevent(2)

   The UHandleEvent will now look like this:

   
   
   
   
4. Scroll to the end of the WAM source and add an event routine to listen for the EMPLOYEE_CHANGED event signal:
   

   Evtroutine Handling(#avFrameworkManager.uWAMEvent_2) Withid(#eventid) WithAinfo1(#Ainfo1) Options(*noclearmessages *noclearerrors)
   Endroutine

5. In the event routine first add code to check the event id:
   

   If '#EventId.Value = EMPLOYEE_CHANGED'
   Endif

6. Then save the current key values from overwrites done by the select loop:

   Inz_List #Save_Keys 1
   
   

7. Assign the value passed by the signaled event to the EMPNO field:

   #EmpNo := #AInfo1
   
   

8. Start updating the instance list:

   Invoke Method(#avListManager.BeginListUpdate)
   
   

9. Fetch the details of the employee that has been updated:

   FETCH FIELDS(#SURNAME #GIVENAME #EMPNO) FROM_FILE(PSLMST) WITH_KEY(#EMPNO)
   
   

10. Update the entry in the instance list:
    

    Use Builtin(BCONCAT) With_Args(#SURNAME #GIVENAME) To_Get(#FULLNAME)
    Invoke #avListManager.AddtoList Visualid1(#EMPNO) Visualid2(#FULLNAME) AKey1(#EMPNO)
    
    

11. Complete the instance list update:

    Invoke Method(#avListManager.EndListUpdate)
    
    

12. Lastly, restore the saved key values:

    Get_Entry 1 #Save_Keys
    
    

    Your finished code will look like this:
    
    
    
    
13. Compile the filter and check it in.