Description

The Combo box (String)'s On Opening event fires off whenever the user clicks the combo box. This means that the opening event will fire off on closing as well as opening.

Steps to Reproduce
  1. Open Editor
  2. Create a New Widget Blueprint
  3. Add a combo box (string) to the designer tab
  4. Add a new OnOpening event to the event graph
  5. Connect a print string to the OnOpening event
  6. Add a few elements to the combo box (to make it easier to tell that it's open)
  7. Compile and Save
  8. Open the Level blueprint
  9. Add the New widget blueprint to the viewport
  10. Play in the Editor
  11. Press Shift+F1 to show mouse
  12. Click the Combo Box a few times
  13. Notice that the Print string is being printed on every click and not just when the combo box is opening
Community References

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Cannot Reproduce
ComponentUE - Editor - UI Systems
Affects Versions4.7.64.84.9
CreatedMay 26, 2015
ResolvedAug 15, 2016
UpdatedJul 14, 2021