Version: 2021.3
UXML element RepeatButton
UXML element Scroller

UXML element ScrollView

C# class: ScrollView
Namespace: UnityEngine.UIElements
Base class: VisualElement

属性

The following table lists all the supported attributes.

名称 类型 描述
content-container string Contains full content, potentially partially visible.
elasticity float The amount of elasticity to use when a user tries to scroll past the boundaries of the scroll view.

Elasticity is only used when touchScrollBehavior is set to Elastic.
focusable boolean True if the element can be focused.
horizontal-page-size float This property is controlling the scrolling speed of the horizontal scroller.
horizontal-scroller-visibility string Specifies whether the horizontal scroll bar is visible.
mode string Controls how the ScrollView allows the user to scroll the contents.
ScrollViewMode

The default is ScrollViewMode.Vertical.
Writing to this property modifies the class list of the ScrollView according to the specified value of
ScrollViewMode. When the value changes, the class list matching the old value is removed and
the class list matching the new value is added.
name string The name of this VisualElement.

Use this property to write USS selectors that target a specific element.
The standard practice is to give an element a unique name.
picking-mode string Determines if this element can be pick during mouseEvents or IPanel.Pick queries.
scroll-deceleration-rate float Controls the rate at which the scrolling movement slows after a user scrolls using a touch interaction.

The deceleration rate is the speed reduction per second. A value of 0.5 halves the speed each second. A value of 0 stops the scrolling immediately.
style string Reference to the style object of this element.

Contains data computed from USS files or inline styles written to this object in C#.
tabindex int An integer used to sort focusables in the focus ring. Must be greater than or equal to zero.
tooltip string Text to display inside an information box after the user hovers the element for a small amount of time.
usage-hints string A combination of hint values that specify high-level intended usage patterns for the VisualElement.
This property can only be set when the VisualElement is not yet part of a Panel. Once part of a Panel, this property becomes effectively read-only, and attempts to change it will throw an exception.
The specification of proper UsageHints drives the system to make better decisions on how to process or accelerate certain operations based on the anticipated usage pattern.
Note that those hints do not affect behavioral or visual results, but only affect the overall performance of the panel and the elements within.
It’s advised to always consider specifying the proper UsageHints, but keep in mind that some UsageHints might be internally ignored under certain conditions (e.g. due to hardware limitations on the target platform).
vertical-page-size float This property is controlling the scrolling speed of the vertical scroller.
vertical-scroller-visibility string Specifies whether the vertical scroll bar is visible.
view-data-key string Used for view data persistence (ie. tree expanded states, scroll position, zoom level).

This is the key used to save/load the view data from the view data store. Not setting this key will disable persistence for this VisualElement.

Style the ScrollView

To see which USS selectors affect the components of the ScrollView at every level of its hierarchy, use the UI Toolkit Debugger:

  1. In Unity, select Window > UI Toolkit > Debugger.
  2. In the UI Toolkit Debugger window, select Pick Element and then select the visual element that you want to debug.

The UI Toolkit Debugger window displays the following:

  • All child elements of the visual element
  • All the USS selectors for each component of the visual element
  • Detailed information of each USS selector
UXML element RepeatButton
UXML element Scroller