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Question Using UI Toolkit, how can I render the base inspector first, and then render my custom inspector?

Discussion in 'UI Toolkit' started by Deleted User, Feb 25, 2024.

  1. Deleted User

    Deleted User


    Is there a simple way to render the base GUI (with my reference MonoBehaviour's serialized fields, etc.), and then render my custom inspector below it? Currently, I can only figure out how to do this by manually recreating the base GUI via serialized properties.

    Code (CSharp):
    1. // Returns the default inspector
    2. public override VisualElement CreateInspectorGUI()
    3. {
    4.     return base.CreateInspectorGUI();
    5. }
    7. // Returns a custom inspector
    8. public override VisualElement CreateInspectorGUI()
    9. {
    10.     var customUI = _UXML.Instantiate();
    11.     var root = new VisualElement();
    12.     _root.add(customUI);
    13.     return root;
    14. }
    I tried caching base.CreateInspectorGUI, but that just returns null, which must be the value Unity looks for to see if it should render the base inspector.
    Last edited by a moderator: Feb 25, 2024
  2. spiney199


    Feb 11, 2021
    SisusCo, Nad_B, Deleted User and 2 others like this.
  3. Nad_B


    Aug 1, 2021
    I don't know how the new UI Toolkit work, but you should use the VisualElement (root) you get from the base call, not create a new one, something like this:

    Code (CSharp):
    1. public override VisualElement CreateInspectorGUI()
    2. {
    3.     var baseRoot = base.CreateInspectorGUI();
    5.     var customUI = _UXML.Instantiate();
    7.     // Add your custom UI to the base root, as long as it accepts multiple children,
    8.     // if not you may need to wrap the base root with a VisualElement that accepts multi children.
    9.     baseRoot.add(customUI);
    11.     return baseRoot;
    12. }
  4. Spy-Master


    Aug 4, 2022
    The topic post already mentioned that Editor.CreateInspectorGUI returns null.

    Some sample code showing usage of freshly created objects as opposed to using base.CreateInspectorGUI:
    SisusCo and Nad_B like this.
  5. Nad_B


    Aug 1, 2021
    Thank you for the info! I still haven't used the UI Toolkit for custom editors yet, but I plan to switch to it for my next project, as I find the system like a practical mix of WPF, HTML/CSS and Android's AXML. Although for runtime UI, nothing beats the performance and productivity of Noesis.
    Last edited: Feb 25, 2024
  6. Deleted User

    Deleted User


    I agree that this new system is a significant improvement. It really feels like working with HTML/CSS/Javascript (where C# is like the JS), and having the layout, styles and logic separated is very nice for organization.
    Nad_B likes this.