Slider Class (System.Windows.Controls)

Microsoft Developer Network

Slider Class

.NET Framework Class Library

Slider Class

Updated: February 2009

Represents a control that lets the user select from a range of values by moving a Thumb control along a Track.

Namespace: System.Windows.Controls
Assembly: PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/xaml/presentation

Syntax

Visual Basic (Declaration)

<LocalizabilityAttribute(LocalizationCategory.Ignore)> _
<TemplatePartAttribute(Name := "PART_Track", Type := GetType(Track))> _
<TemplatePartAttribute(Name := "PART_SelectionRange", Type := GetType(FrameworkElement))> _
Public Class Slider _
    Inherits RangeBase

Visual Basic (Usage)

Dim instance As Slider

[LocalizabilityAttribute(LocalizationCategory.Ignore)]
[TemplatePartAttribute(Name = "PART_Track", Type = typeof(Track))]
[TemplatePartAttribute(Name = "PART_SelectionRange", Type = typeof(FrameworkElement))]
public class Slider : RangeBase

Visual C++

[LocalizabilityAttribute(LocalizationCategory::Ignore)]
[TemplatePartAttribute(Name = L"PART_Track", Type = typeof(Track))]
[TemplatePartAttribute(Name = L"PART_SelectionRange", Type = typeof(FrameworkElement))]
public ref class Slider : public RangeBase

JScript

public class Slider extends RangeBase

XAML Object Element Usage

<Slider .../>

Remarks

A Slider control lets users select a value from a range of values. The following illustration shows an example of a Slider control.

Example of a Slider Control

You can customize a Slider control by setting its properties. The following list describes some of the attributes of a Slider that you can customize:

The orientation of the Slider, either horizontal or vertical.
The tick mark locations along the Slider track.
The display of tooltips to show the current value of the Slider.
The ability of the Thumb to either snap to tick marks or to be positioned at any point along the Slider.
The direction of increasing value along the Slider.

For more information about how to customize a Slider control, see the individual member.

Slider overrides the metadata of the Maximum property and sets its default to 10. For more information, see Dependency Properties Overview.

Note:
If the value of the Slider is animated, the user may no longer be able to interact with the Slider control after the animation finishes. See How to: Set a Property After Animating It with a Storyboard for options of how you can restore user control of a Slider after it is animated.

Dependency properties for this control might be set by the control’s default style. If a property is set by a default style, the property might change from its default value when the control appears in the application. The default style is determined by which desktop theme is used when the application is running. For more information, see Themes.

Examples

This example shows how to create a Slider control that has tick marks.

The TickBar displays when you set the TickPlacement property to a value other than None, which is the default value.

The following example shows how to create a Slider with a TickBar that displays tick marks. The TickPlacement and TickFrequency properties define the location of the tick marks and the interval between them. When you move the Thumb, tooltips display the value of the Slider. The AutoToolTipPlacement property defines where the tooltips occur. The Thumb movements correspond to the location of the tick marks because IsSnapToTickEnabled is set to true.

The following example shows how to use the Ticks property to create tick marks along the Slider at irregular intervals.

<Slider Width="100" Value="50" Orientation="Horizontal" HorizontalAlignment="Left" 
        IsSnapToTickEnabled="True" Maximum="3" TickPlacement="BottomRight" 
        AutoToolTipPlacement="BottomRight" AutoToolTipPrecision="2" 
        Ticks="0, 1.1, 2.5, 3"/>

For the complete sample, see Slider with Data Binding Sample.

More Code

How to: Bind a Slider to a Property Value

This example shows how to bind the Height property of a Rectangle to the Value of a Slider control.

Inheritance Hierarchy

System..::.Object
  System.Windows.Threading..::.DispatcherObject
    System.Windows..::.DependencyObject
      System.Windows.Media..::.Visual
        System.Windows..::.UIElement
          System.Windows..::.FrameworkElement
            System.Windows.Controls..::.Control
              System.Windows.Controls.Primitives..::.RangeBase
                System.Windows.Controls..::.Slider

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Version Information