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Showing content from https://docs.unity3d.com/Manual/UIE-uxml-element-Scroller.html below:

Unity - Manual: Scroller

A Scroller lets users scroll through content in your user interface.

You can create a Scroller with UI Builder, UXML, or C#. The following C# example creates a Scroller with a default value, low limit, and high limit, and sets the direction of the Scroller:

var scroller = new Scroller();
scroller.value = 42;
scroller.lowValue = 0;
scroller.highValue = 100;
scroller.direction = SliderDirection.Vertical;

The following UXML example creates a Scroller:

<UXML xmlns="UnityEngine.UIElements" xmlns:uie="UnityEditor.UIElements">
    <Scroller
        name="the-uxml-scroller"
        direction="Horizontal"
        low-value="0"
        high-value="100" />
</UXML>

The following C# example illustrates some of the customizable functionalities of the Scroller:

/// <sample>
// Get a reference to the scroller from UXML and assign it its value.
var uxmlField = container.Q<Scroller>("the-uxml-scroller");
uxmlField.valueChanged += (v) => {};
uxmlField.value = 42;

// Create a new scroller, disable it, and give it a style class.
var csharpField = new Scroller(0, 100, (v) => {}, SliderDirection.Vertical);
csharpField.SetEnabled(false);
csharpField.AddToClassList("some-styled-scroller");
csharpField.value = uxmlField.value;
container.Add(csharpField);

// Mirror value of uxml scroller into the C# field.
uxmlField.RegisterCallback<ChangeEvent<float>>((evt) =>
{
    csharpField.value = evt.newValue;
});
/// </sample>

To try this example live in Unity, go to Window > UI Toolkit > Samples.

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

This element has the following member attributes:

This element inherits the following attributes from its base class:

This element also inherits the following attributes from VisualElement:

This information is only used by the UI Builder as a hint to provide some completion to the data source path field when the effective data source cannot be specified at design time.

Setting the languageDirection to RTL adds basic support for right-to-left (RTL) by reversing the text and handling linebreaking and word wrapping appropriately. However, it does not provide comprehensive RTL support, as this would require text shaping, which includes the reordering of characters, and OpenType font feature support. Comprehensive RTL support is planned for future updates, which will involve additional APIs to handle language, script, and font feature specifications.

To enhance the RTL functionality of this property, users can explore available third-party plugins in the Unity Asset Store and make use of ITextElementExperimentalFeatures.renderedText

Use this property to write USS selectors that target a specific element. The standard practice is to give an element a unique name.

This key is used to save and load the view data from the view data store. If you don’t set this key, the persistence is disabled for the associated VisualElement. For more information, refer to View data persistence.

The following table lists all the C# public property names and their related USS selector.

You can also use the Matching Selectors section in the Inspector or the UI Toolkit Debugger to see which USS selectors affect the components of the VisualElement at every level of its hierarchy.

• ScrollViewA UI Control which displays a large set of Controls in a viewable area that you can see by using a scrollbar. More info
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