How can we sort records in alv, give example

Question

how can we sort records in alv, give example

Answer 1

Hi
<b>Setting Sort Conditions</b>
It is possible to set sort conditions for the table data. This is achieved by filling an internal table of structure “LVC_T_SORT” which consists of the sort criteria. To have an initial sorting, pass it to the parameter “IT_SORT” of the method “set_table_for_first_display”.
FORM prepare_sort_table CHANGING pt_sort TYPE lvc_t_sort .
DATA ls_sort TYPE lvc_s_sort .
ls_sort-spos = '1' .
ls_sort-fieldname = 'CARRID' .
ls_sort-up = 'X' . "A to Z
ls_sort-down = space .
APPEND ls_sort TO pt_sort .
ls_sort-spos = '2' .
ls_sort-fieldname = 'SEATSOCC' .
ls_sort-up = space .
ls_sort-down = 'X' . "Z to A
APPEND ls_sort TO pt_sort .
ENDFORM. " prepare_sort_table
<b>Preparing the table for sorting settings</b>
We have two important points to tell about this topic. First one is that, be ready for a short dump if any one of the fields given to be sorted is not in the content of the field catalog. Secondly, when you make ALV Grid to sort data, by default it vertically merges fields having the same content. To avoid from this for all of the columns, you can set “no_merging” field of the layout structure to ‘X’. If you want to disable merging for just some columns, set “no_merging” field of the field catalog row corresponding to that column.
You can get and set sort criteria applied whenever you want by using methods “get_sort_criteria” and “set_sort_criteria”, respectively.
<b>
Sort Using FACTORY CLASSES</b>
<b>Sorts – CL_SALV_SORTS</b>
we can add some sorting to the ALV grid. Create the object reference variable and receive the object using the GET_SORTS method of the GR_TABLE object. Next, add the sort by calling the ADD_SORT method of the GR_SORTS object.
report zalvom_demo1.
data: ispfli type table of spfli.
data: gr_table type ref to cl_salv_table.
data: gr_functions type ref to cl_salv_functions.
data: gr_display type ref to cl_salv_display_settings. data: gr_columns type ref to cl_salv_columns_table.
data: gr_column type ref to cl_salv_column_table.
data: gr_sorts type ref to cl_salv_sorts.
data: color type lvc_s_colo.
start-of-selection.
select * into table ispfli from spfli. cl_salv_table=>factory( importing r_salv_table = gr_table   changing t_table = ispfli ).
gr_functions = gr_table->get_functions( ). gr_functions->set_all( abap_true ).
gr_display = gr_table->get_display_settings( ). gr_display->set_striped_pattern( cl_salv_display_settings=>true ). gr_display->set_list_header( 'This is the heading' ). gr_columns = gr_table->get_columns( ).
gr_column ?= gr_columns->get_column( 'CITYTO' ). gr_column->set_long_text( 'This is long text' ). gr_column->set_medium_text( 'This is med text' ). gr_column->set_short_text( 'This is sh' ).
gr_column ?= gr_columns->get_column( 'CITYFROM' ). color-col = '6'.
color-int = '1'.
color-inv = '0'.
gr_column->set_color( color ).
gr_sorts = gr_table->get_sorts( ).
gr_sorts->add_sort 'CITYTO' ).
gr_table->display( ).
Regards
Ravish
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Reward if useful to you</i></b>
Message was edited by:
        Ravish Garg