Click event on WDALV tablecolumn header

Question

in my scene ,
WDALV TABLE:
row1: a1,a2,a3,a4,a5.
row2: b1,b2,b3,b4,b5.
row3:c1,c2,c3,c4,c5.
row4:d1,d2,d3,d4,d5.
select row2 then click the third tablecolumn header(left of the sort) of "b3" column
set all  third column's value equal b3's value.
select row2 then click the third tablecolumn header(left of the sort) of "b4" column
set all  fourth column's value equal b4's value.
it likes TABLECOLUMN's ONACTION in  WDTABLE .
I have so many columns detail like  this,so i don't think  IF_SALV_WD_FUNCTION_SETTINGS->CREATE_FUNCTION  is a good way.
I saw the page refresh when i clicked the header of column ,but i can't find the corresponding method.
Please help me how i can do it?
Thx

Answer 1

Hello Uday/Thomas
Before using ON_CELL_ACTION, cell content should be either button or link to action
DATA lr_link      TYPE REF TO cl_salv_wd_uie_link_to_action .
  CREATE OBJECT lr_link.
  lr_link->set_text_fieldname( 'Field Name' ).
  lo_column_settings ?= lo_table.
  lo_column =  lo_table->if_salv_wd_column_settings~get_column( ''Field Name' ).
  lo_column_hdr = lo_column->create_header( ).
  lo_column->set_h_align( cl_wd_table_column=>e_h_align-center ).
  lo_column->set_cell_editor( lr_link ).
If the field is normal field and then ON_CELL_ACTION event will not trigger, in that case one has to use the event ON_LEAD_SELECTION, that will give the index of the row and for getting the value
get_element( index )
get_static_attribute( ) method you will be able to get the value of the field.
Regards
Vishal