How to correctly add icon to button (UXML warning)

Unity Engine
1

The docs state, that a Button control may not contain child elements and my UXML also shows me a warning:

The element Button cannot contain child element Bla because the parent element’s content model is empty.

However, visually, this seems to work. I have a button with an icon.

Am I doing something wrong or is this warning misleading?

<?xml version="1.0" encoding="utf-8"?>
<engine:UXML
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
    xmlns:engine="UnityEngine.UIElements"
    xmlns:editor="UnityEditor.UIElements"
    xsi:noNamespaceSchemaLocation="../UIElementsSchema/UIElements.xsd"
>

  <engine:Label text="Time Scale"/>
  <engine:Slider/>
  <editor:FloatField name="Time"/>
  <editor:FloatField name="MaxTime"/>
  <engine:Button name="Reset">
    <engine:VisualElement name="ResetIcon"/>
  </engine:Button>

</engine:UXML>
2

Hello Xarbrough!

Would you be able to tell me what version are you using?

3

2019.3.0f5. Thanks for looking at this!

4

The warning is just a suggestion as nothing really forbids you from doing it further down the line. We’ll update the generated schema to reflect this.

1 Like
5

It doesn’t seem like I reproduce the issue on 2019.3.0f6 using your UXML snippet.

Could you try to upgrade to the latest version and let me know if you still have this problem?

1 Like
6

I checked my project in 2019.3.0f6 and indeed, the IDE warnings about buttons not allowing children have disappeared. :slight_smile:

7

I’m on 2019.3.0f6 and still seeing this warning in Visual Studio, but not in Unity. Anything I can do to get rid of this?

5424954--551928--upload_2020-1-30_14-34-39.png
5424954--551928--upload_2020-1-30_14-34-39.png986×77 3.79 KB

8

@StephanieRowlinson : See this thread . It’s a small issue in the schema generation code and will be fixed in the future.

1 Like
9

@Xarbrough_1 Glad to see it is also fixed for you! :slight_smile: Thanks for letting me know!