Class Scroller

A vertical or horizontal scrollbar.

Inheritance
Object
CallbackEventHandler
Focusable
VisualElement
Scroller
Inherited Members
VisualElement.disabledUssClassName
VisualElement.viewDataKey
VisualElement.userData
VisualElement.canGrabFocus
VisualElement.focusController
Namespace: UnityEngine.UIElements
Syntax
public class Scroller : VisualElement, IEventHandler, ITransform, ITransitionAnimations, IExperimentalFeatures, IVisualElementScheduler, IResolvedStyle

Constructors

Scroller()

Constructor.

Declaration
public Scroller()

Scroller(Single, Single, System.Action<Single>, SliderDirection)

Constructor.

Declaration
public Scroller(float lowValue, float highValue, System.Action<float> valueChanged, SliderDirection direction = SliderDirection.Vertical)
Parameters
Type Name Description
Single lowValue
Single highValue
System.Action<Single> valueChanged
SliderDirection direction

Fields

highButtonUssClassName

USS class name of high buttons in elements of this type.

Declaration
public static readonly string highButtonUssClassName
Field Value
Type Description
String

horizontalVariantUssClassName

USS class name of elements of this type, when they are displayed horizontally.

Declaration
public static readonly string horizontalVariantUssClassName
Field Value
Type Description
String

lowButtonUssClassName

USS class name of low buttons in elements of this type.

Declaration
public static readonly string lowButtonUssClassName
Field Value
Type Description
String

sliderUssClassName

USS class name of slider elements in elements of this type.

Declaration
public static readonly string sliderUssClassName
Field Value
Type Description
String

ussClassName

USS class name of elements of this type.

Declaration
public static readonly string ussClassName
Field Value
Type Description
String

verticalVariantUssClassName

USS class name of elements of this type, when they are displayed vertically.

Declaration
public static readonly string verticalVariantUssClassName
Field Value
Type Description
String

Properties

direction

Direction of this scrollbar.

Declaration
public SliderDirection direction { get; set; }
Property Value
Type Description
SliderDirection

highButton

Top or right scroll button.

Declaration
public RepeatButton highButton { get; }
Property Value
Type Description
RepeatButton

highValue

Maximum value.

Declaration
public float highValue { get; set; }
Property Value
Type Description
Single

lowButton

Bottom or left scroll button.

Declaration
public RepeatButton lowButton { get; }
Property Value
Type Description
RepeatButton

lowValue

Minimum value.

Declaration
public float lowValue { get; set; }
Property Value
Type Description
Single

slider

The slider used by this scroller.

Declaration
public Slider slider { get; }
Property Value
Type Description
Slider

value

Value that defines the slider position. It lies between lowValue and highValue.

Declaration
public float value { get; set; }
Property Value
Type Description
Single

Methods

Adjust(Single)

Updates the slider element size as a ratio of total range. A value greater than 1 will disable the Scroller.

Declaration
public void Adjust(float factor)
Parameters
Type Name Description
Single factor

Slider size ratio.

ScrollPageDown()

Will change the value according to the current slider pageSize.

Declaration
public void ScrollPageDown()

ScrollPageDown(Single)

Will change the value according to the current slider pageSize.

Declaration
public void ScrollPageDown(float factor)
Parameters
Type Name Description
Single factor

ScrollPageUp()

Will change the value according to the current slider pageSize.

Declaration
public void ScrollPageUp()

ScrollPageUp(Single)

Will change the value according to the current slider pageSize.

Declaration
public void ScrollPageUp(float factor)
Parameters
Type Name Description
Single factor

Events

valueChanged

Event sent when the slider value has changed.

Declaration
public event System.Action<float> valueChanged
Event Type
Type Description
System.Action<Single>

Extension Methods