accessing protected method from class CL_GUI_ALV_TREE

[Former Member]

Hi,

I have delveloped tree report using class CL_GUI_ALV_TREE.

I want to access a method CALCULATE_SUBTREE in that class.But it was protected method implemented in

super class CL_ALV_TREE_BASE class.

How to access this mehtod?

I created a local class inheriting the suprecalss and inside that i am accessing CALCULATE_SUBTREE .

But inside the mehtod the table values mt_outtab-> is initial.It gives the terinimation with access null reference.

Pleae let me know how do i access the values from the base class.

[Former Member]

Hi,

     Did you try type casting to access the method in the base class? Try the below code.

     DATA : l_base TYPE REF TO cl_alv_tree_base,

                 l_tree TYPE REF TO cl_gui_alv_tree.

     /*after the required objects are created*/

     l_base ?= l_tree.

     l_base->calculate_subtree().

     I didn't try to execute the code myself. See if you can get any  help from it.

Hope this helps,

~Athreya

[Former Member]

Hi,

Thanks for the reply.

I have tried that too.

But it is showing syntax error access to protected CALCULATE_SUBTREE is not allowed.

Thanks ,

Balachandran R

[SuhaSaha]

You can only access protected methods/attributes of super-classes from sub-classes. Casting won't be able of any help

@Bala - Can you please explain what exactly you want to achieve (your business requirement, maybe) by calling this protected method?

BR,

Suhas    

Message was edited by: Suhas Saha

[Former Member]

Hi,

The output columns are aggregated with totals.My requirement is to get the calculated line of the sub tree and comparing totals with another sub tree in the program.

Regards,

Balachandran R

[Former Member]

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[Former Member]

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