LOV cancel button displays 'No Data Found'

Question

I have 5 fields on a form where the users can search different information based on what they type into the search fields. Once they have their search criteria they hit a 'Search' button, I have a when_button_pressed button trigger on the search button. On this trigger I have logic to build a record group dynamically, after the RG gets populated dynamically I am using the SHOW_LOV bulit-in to present my LOV to the end user. All this works well, however, there is a new requirement in where the client wants a 'no data found' message displayed on the screen when users type arbitrary/invalid information on any of the search fields. I was able to accomplish this by simply putting the following code in the ELSE part of my main IF statement for my LOV.
ELSE
     IF NOT SHOW_LOV('LIAB_LST_LOV')THEN
          display_message('No Data Found');
          END IF;
END;
The code above displays the message they want to see when search users search on invalid criteria. So finally, here is the issue, when they search on VALID criteria the LOV obviously pops up without any issues but if users click the 'Cancel' button in the LOV window they get the 'No Data Found' message above too. They only want to see the message if there is invalid data searched.
How can I make sure that after the LOV gets populated my code doesn't return the No Data Found message when they press Cancel on the LOV?
Thanks,
Adrian

Answer 1

Hi Francois,
I used the get_group_row_count you suggested and I was able to incorporate it into my code without any issues and more importantly it is working now! This is what I did, after populating the record group, I checked to see if the row count was greater than 0 for the RG if it was not then I’m displaying the message. It is working correctly.
Thank you!
Adrian