How to Clear the Value of a Combobox

Answered

Diogo Roldao

• January 23, 2021 15:34

I have a 5 level sub categorizations system. The multi-level selection is based on comboboxes. Ex: When you select an item in the first combobox, the second level gets, as valid values, only items that have the first selected level as a parent... and this is repeated on 5 leves.

All this validation is working good, but i need that, AFTER selecting, maybe the third level, if i go back and change the first level, i need that all following levels have the combobox cleared (in this case, the second and third level, that had already been selected, should go back to blank.

i already tried the following commands, with no success:

Bank()

Set(combobox |"")

ClearValidValues

 

any clue?

 

thanks in advance 

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• Official comment

  

  Yaremi Miranda Lopez

  • February 16, 2021 22:34

  Hello Diogo,

  It depends on the Combobox, in this example the Combobox empty has the value 0, I used a set command sending this value and it works for me.

  
• 

  Patrice Vigier

  • November 06, 2024 11:24
  • Edited

  My solution to clear it, is (for a combo-box named $[$BOYX_51.0.0])

  Hide($[$BOYX_51.0.0]);
  Blank($[$BOYX_51.0.0]);
  Show($[$BOYX_51.0.0]);

   

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