Creating a number of Link to Actions based on the Output of an ALV

Question

Hello Experts,
I have an ALV table as an output in WDA in which the number of records are unknown.
I want to limit the number of records to 500 at a point of time.
Below the table i need to have link to actions placed like 1-500 501-1000 10001-1500 and so on.
As the number of records are unknown i need to have these link to actions divided among total records.
And if the table shows 1-500 records the Link to Action 1-500 should become text so that the user will not be able to click on it.
So my requirement is
1.How to limit the number of records to 500.
2.How to place the link to actions dynamically based on the number of output records.
3.How to change the Link to Action to Text.
Please help me in this.
Thanks in Advance,
Shravan

Answer 1

Hello Shravan,
If you know the total number of records at runtime then its simple. Otherwise you need to write some complex logic. I assume that at runtime while launching the application you will know the total number records .
1.How to limit the number of records to 500.
As Srinivas mentioned call the set_visible_row_count method by passing 500
2.How to place the link to actions dynamically based on the number of output records.
Logic for the same.
data i_total type i value 1250. "say total number of records
data i_max type i value 500. "your max records to be displayed in aLV at anypoint of time
data i_num type i.
data i_rem type i.
i_num = i_total div i_max.
i_rem = i_total mod i_max.
data lv_end_text type string.
data lv_start_text type string.
data lv_final_text type string.
data i_start type i.
data i_end type i.
do i_num times.
  i_start = ( i_max * ( sy-index - 1 ) + 1 ).
  lv_start_text = i_start.
  i_end = i_max * sy-index.
  lv_end_text = i_end.
  concatenate lv_start_text ' - ' lv_end_text into lv_final_text RESPECTING BLANKS.
   "Write the logic to create the Link to Action - as suggested by Srinivas
enddo.
if i_rem > 0.
  i_start  = i_max * i_num + 1.
  lv_start_text = i_start.
  i_end = i_max * i_num + i_rem.
  lv_end_text = i_end.
  concatenate lv_start_text ' - ' lv_end_text into lv_final_text RESPECTING BLANKS.
" Write the logic to add the last linkToAction
endif.
3.How to change the Link to Action to Text.
If you set the enable property of the LinkToAction to abap_false then it will be disabled and displayed as text.
Hope this helps.
BR, Saravanan