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Bug Dropdown List's Sorting Layer not compatible with multiple canvases with different sorting layers

Discussion in 'UGUI & TextMesh Pro' started by cm16, May 15, 2024.

  1. cm16


    Sep 11, 2017
    related issue:

    At File TMP_Dropdown.cs, Line 816:
    Code (CSharp):
    1.             // popupCanvas used to assume the root canvas had the default sorting Layer, next line fixes (case 958281 - [UI] Dropdown list does not copy the parent canvas layer when the panel is opened)
    2.             m_Template.GetComponent<Canvas>().sortingLayerID = rootCanvas.sortingLayerID;
    This makes the sorting layer of dropdown list always changed to the sorting layer of the root canvas, and I can not set the sorting layer manually.

    However, when I have a hierarchy like:
    Code (CSharp):
    1. └─ Canvas1(Sorting Layer 1)
    2.       ├─  Canvas2(Sorting Layer 2)
    3.       │      └─Dropdown1
    4.       └─  Canvas3(Sorting Layer 3)
    5.              └─Dropdown2
    The sorting layers of Dropdown1 and Dropdown2 are always set to "Sorting Layer 1", which makes them render behind "Sorting Layer 2" and "Sorting Layer 3".
  2. JuliaP_Unity


    Unity Technologies

    Mar 26, 2020
    Hey, if you think you found a bug, please report it through Help > Report a Bug inside the Unity Editor.