OnLoad method in MeasurementList

Question

Hi all,
  This is regarding the onLoad method in MeasurementList.
  My requirement is to add the equipment and functional location details to the Measuringpoint List. So i'm trying to incorporate the objects of both the measuring point and the equipment into one.
   A new view controller is created for this purpose. It is suggested to extend the MeasurementList class and overwrite the onLoad method in it.But, can anyone explain what is really done with the onLoad method here?
Event handler called when loading the measurement point list page.
@param forwards Forwards representing the list of all forward pages for this event
@return Forward the forward page selected
    public Forward onLoad(Forwards forwards) {
        custom = getMeasureCustomController();
        Context context = getContext();
        /* clear every child since we are the parent */
        custom.resetCustomMethods();
        // Set the attributes that the list will use
        if (context.getValue("resetNav") != null && context.getValue("resetNav").equals("true")) {
            com.sap.mbs.tools.list.PageBuilder.resetAllNavigations();
        return super.onLoad(forwards);
Regards,
Hamsa Priya

Answer 1

Hello,
Nothing in fact:) Just resetting the various custom controllers and navigation.
In MAM 3.0 laptop solution, which I guess you are looking at by the look of the onload, the actual list loading code is in the onMeasurmentPointListLoad (or something similar) method which is called when the frame is processed.
To add fields to the list, you have to first enhance the BO locally so that you return the fields you need from technical object associated to the point. Then you have to enhance the listdef.xml file to add those field to the UI. Normally, if you have done everything correctly, you don't have to play with the view controller. This is all explained in the provided enhancement guide.
Thank you!
Julien.