# \[Bug-13046\]Vision Dropdown Arrow Button Registers As Event Source

**URL:** <https://forum.inductiveautomation.com/t/bug-13046-vision-dropdown-arrow-button-registers-as-event-source/23144>\
**Category:** Ignition Early Access\
**Created:** [March 7, 2019, 10:17pm UTC](https://forum.inductiveautomation.com/t/bug-13046-vision-dropdown-arrow-button-registers-as-event-source/23144 "2019-03-07T22:17:02Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![cwaddoups](https://avatars.discourse-cdn.com/v4/letter/c/43a26b/32.png) [@cwaddoups](https://forum.inductiveautomation.com/u/cwaddoups)\
**Post date:** [March 7, 2019, 10:17pm UTC](https://forum.inductiveautomation.com/t/bug-13046-vision-dropdown-arrow-button-registers-as-event-source/23144/1 "2019-03-07T22:17:02Z")

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I have a custom boolean property on a dropdown list component in vision titled mouseHovering. I use scripts on the mouse entered and exited events to trigger this property true/false. When I drag the mouse over the arrow to use the drop down list however I get the below error. I am using b2019030702.

Traceback (most recent call last):  
File “event:mouseEntered”, line 1, in   
AttributeError: ‘javax.swing.plaf.synth.SynthArrowButton’ object has no attribute ‘mouseHovering’

Ignition v8.0.0-beta0 (b2019030702)  
Java: Azul Systems, Inc. 11.0.2

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**Author:** ![cmallonee](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/cmallonee/32/6416_2.png) [@cmallonee](https://forum.inductiveautomation.com/u/cmallonee)\
**Post date:** [March 7, 2019, 10:34pm UTC](https://forum.inductiveautomation.com/t/bug-13046-vision-dropdown-arrow-button-registers-as-event-source/23144/2 "2019-03-07T22:34:57Z")

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I wasn’t able to replicate your issue. Please look over my steps and let me know if you did something differently.

1. Place Dropdown on Window and supply valid options/values.
2. Place Label on Window.
3. Make new Boolean custom property for Dropdown, named “mouseHovering”
4. Configure new mouseEntered and mouseExited events, which set event.source.mouseHovering to True/False respectively.
5. Bind Label.text to Dropdown.mouseHovering.
6. Place Designer in Preview Mode.

ACTION: Hover over Dropdown.  
RESULT: Label text becomes “true”  
ACTION: Move mouse away from Dropdown component.  
RESULT: Label text becomes “false”.

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<div class="post-metadata">

**Author:** ![cwaddoups](https://avatars.discourse-cdn.com/v4/letter/c/43a26b/32.png) [@cwaddoups](https://forum.inductiveautomation.com/u/cwaddoups)\
**Post date:** [March 7, 2019, 10:39pm UTC](https://forum.inductiveautomation.com/t/bug-13046-vision-dropdown-arrow-button-registers-as-event-source/23144/3 "2019-03-07T22:39:08Z")

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If I just hover over the text portion of the drop down list it works perfectly. If I move the mouse over the triangle component of the drop down I get the error everytime.

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**Author:** ![cmallonee](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/cmallonee/32/6416_2.png) [@cmallonee](https://forum.inductiveautomation.com/u/cmallonee)\
**Post date:** [March 7, 2019, 10:39pm UTC](https://forum.inductiveautomation.com/t/bug-13046-vision-dropdown-arrow-button-registers-as-event-source/23144/4 "2019-03-07T22:39:57Z")

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There it is. Thank you. I’ll open a ticket right now.

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**Author:** ![awalker](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/awalker/32/6874_2.png) [@awalker](https://forum.inductiveautomation.com/u/awalker)\
**Post date:** [April 10, 2019, 9:49pm UTC](https://forum.inductiveautomation.com/t/bug-13046-vision-dropdown-arrow-button-registers-as-event-source/23144/5 "2019-04-10T21:49:26Z")

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This issue was fixed in the build uploaded today (4/10).

Normally we have the nightly builds accessible via [https://inductiveautomation.com/downloads/ignition](https://inductiveautomation.com/downloads/ignition), but in the meantime you can find it via this post:  
[8.0.1 Nightlies - Temporary Place to Download the Latest Builds](http://forum.inductiveautomation.com/t/8-0-1-nightlies-temporary-place-to-download-the-latest-builds/24014/2)

Let us know if you have any issues.