topic Re: How to use Aggregations Method generated by WIZARD in Application Development and Automation Discussions

How to use Aggregations Method generated by WIZARD

Former Member — Thu, 06 Aug 2009 12:44:30 GMT

Hi All,

I used ABAP wizard to develop I report.

This wizard generated one class and method as below


  zcl_bt_alv_template=>factory(
                 exporting  im_syrepid = sy-repid
                            im_lheader = gv_title
                            im_allowls = abap_true  " Allow layout save
                 importing  ex_alvo    = r_alv_template
                 changing   ch_datatab = it_efficiency ).

Inside this Factory Method there is one method for aggregations.


  ex_alvo->r_aggregations = ex_alvo->r_table->get_aggregations( ).

How to use this Method for getting aggregations for some fields.

Thanks,

Prasad.

Re: How to use Aggregations Method generated by WIZARD

naimesh_patel — Thu, 06 Aug 2009 13:09:04 GMT

It looks like the attribute R_TABLE is an instance of the CL_SALV_TABLE and r_aggregations is an instance of the cl_salv_aggregations.

To get the total on any column using this aggregation object, you need to call method ADD_AGGREGATION. Like:


*   Total for the Amount
    TRY.
        r_aggregations->add_aggregation(
           columnname  = 'DMBTR'
           aggregation = if_salv_c_aggregation=>total ).
      CATCH cx_salv_data_error .                        "#EC NO_HANDLER
      CATCH cx_salv_not_found .                         "#EC NO_HANDLER
      CATCH cx_salv_existing .                          "#EC NO_HANDLER
    ENDTRY.

Regards,

Naimesh Patel

Re: How to use Aggregations Method generated by WIZARD

Former Member — Thu, 06 Aug 2009 13:34:41 GMT

Hi Patel,

I am getting DUMP for this.

Its saying Access via 'NULL' object reference not possible.

Patel when I am double clicking the


aggregation = if_salv_c_aggregation=>total

This if_salv_c_aggregation is not having any methods.

So may be the dump is coming.

The dump is


You attempted to use a 'NULL' object reference (points to 'nothing')
access a component (variable: "R_AGGREGATIONS").

Thanks,

Prasad.

Edited by: Dheeru Prasad on Aug 6, 2009 3:36 PM

Edited by: Dheeru Prasad on Aug 6, 2009 3:39 PM

Edited by: Dheeru Prasad on Aug 6, 2009 3:40 PM

Re: How to use Aggregations Method generated by WIZARD

Former Member — Thu, 06 Aug 2009 15:38:01 GMT

Hi Patel I used Normal ALV for this..