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Former Member

BC-BSP-MVC: Question about creating/accessing ID of master controller

May 06, 2004 at 06:48 PM | 10 Views

Hello Experts-

I had a BSP-MVC related question.

If a master controller (1.do) creates and calls a view (1.htm) then how can I access one of the attributes of the master controller (1.do) from one of its sub-controllers (1a.do and 1b.do)?

Its easy to access attributes of sub-controllers because you can get an instance of the sub-controller from any other controller by referencing to it through the 'm_parent' object (and using the get_controller method with a reference to the controller/component id of the sub-controller). Its relatively simple to identify them (sub-controllers) and their attributes.

However, since the master controller (1.do) is the point of access of the application and is called directly from the web-browser, there is no location to specify its controller id.

So, my question is, where do I assign a controller/component id to my master controller? Or, how do I refer to an attribute of the master controller if I am unable to assign a controller/component ID to it?

Thanks,

- Vik.

UI Business Server Pages (BSP)
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1 Answer

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    Former Member
    May 06, 2004 at 07:42 PM

    Hi,

    "m_parent" IS the handle to your master controller (if you are referring it from a sub-controller).

    So, all you have to do is, assign it (with Cast) to the controller class and start accessing the attributes.

    As simple easy as that 😉

    data: master_controller type ref to ZCL_YOUR_MASTER_CLASS.

    master_controller ?= m_parent.

    (and, start accessing the attributes)

    a = master_controller->attribute1.

    b = master_controller->attribute2.

    ...

    Regards,

    Venky Varadadesigan

    SAP NetWeaver consulting.

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