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Setter.Value Property

Gets or sets the value to apply to the property that is specified by this Setter.

Namespace:  System.Windows
Assembly:  PresentationFramework (in PresentationFramework.dll)
XMLNS for XAML: http://schemas.microsoft.com/winfx/2006/xaml/presentation, http://schemas.microsoft.com/netfx/2007/xaml/presentation

[LocalizabilityAttribute(LocalizationCategory.None, Readability = Readability.Unreadable)]
public Object Value { get; set; }
<object>
  <object.Value>
    value
  </object.Value>
</object>
<object Value="value"/>

XAML Values

value

An object or a markup extension. See StaticResource Markup Extension.

Note that you must specify both the Property and Value properties on a Setter or an exception will be thrown.

Data binding and dynamic resources within the object is supported if the specified value is a Freezable object. See Binding Markup Extension and DynamicResource Markup Extension.

Property Value

Type: System.Object
The default value is UnsetValue.

ExceptionCondition
ArgumentException

If the specified Value is set to UnsetValue.

The following example defines a Style that will be applied to every TextBlock element. For the complete example, see Introduction to Styling and Templating Sample.

<Style TargetType="{x:Type TextBlock}">
  <Setter Property="FontFamily" Value="Segoe Black" />
  <Setter Property="HorizontalAlignment" Value="Center" />
  <Setter Property="FontSize" Value="12pt" />
  <Setter Property="Foreground" Value="#777777" />
</Style>

The following example defines a Style with Setters that reference system resources.

<Style x:Key="SystemResStyle" TargetType="{x:Type Button}">
    <Setter Property = "Background" Value= 
                       "{DynamicResource {x:Static SystemColors.ControlLightBrushKey}}"/>
    <Setter Property = "Foreground" Value= 
                       "{DynamicResource {x:Static SystemColors.ControlDarkBrushKey}}"/>
    <Setter Property = "FontSize" Value= 
                       "{DynamicResource {x:Static SystemFonts.IconFontSizeKey}}"/>
    <Setter Property = "FontWeight" Value= 
                       "{DynamicResource {x:Static SystemFonts.MessageFontWeightKey}}"/>
    <Setter Property = "FontFamily" Value= 
                       "{DynamicResource {x:Static SystemFonts.CaptionFontFamilyKey}}"/>
</Style>

The following example defines a Style for the RepeatButton.

		<Style x:Key="Slider_Thumb" TargetType="{x:Type Thumb}">
			<Setter Property="OverridesDefaultStyle" Value="true" />
			<Setter Property="Width" Value="14" />
			<Setter Property="Height" Value="14" />
			<Setter Property="Template">
				<Setter.Value>
					<ControlTemplate TargetType="{x:Type Thumb}">
						<Grid Width="14" Height="14">
							<Ellipse Fill="{TemplateBinding Foreground}" />
							<Ellipse Stroke="{TemplateBinding BorderBrush}" StrokeThickness="1" x:Name="ThumbCover" >
								<Ellipse.Fill>
									<LinearGradientBrush  EndPoint="0,1" StartPoint="0,0">
										<LinearGradientBrush.GradientStops>
											<GradientStop Color="#CCFFFFFF" Offset="0" />
											<GradientStop Color="#00000000" Offset=".5" />
											<GradientStop Color="#66000000" Offset="1" />
										</LinearGradientBrush.GradientStops>
									</LinearGradientBrush>
								</Ellipse.Fill>
							</Ellipse>
						</Grid>
						<ControlTemplate.Triggers>
							<Trigger Property="IsDragging" Value="true">
								<Setter TargetName="ThumbCover" Property="Fill">
									<Setter.Value>
										<LinearGradientBrush  EndPoint="0,1" StartPoint="0,0">
											<LinearGradientBrush.GradientStops>
												<GradientStop Color="#CCFFFFFF" Offset="1" />
												<GradientStop Color="#00000000" Offset=".5" />
												<GradientStop Color="#66000000" Offset="0" />
											</LinearGradientBrush.GradientStops>
										</LinearGradientBrush>
									</Setter.Value>
								</Setter>
							</Trigger>
						</ControlTemplate.Triggers>
					</ControlTemplate>
				</Setter.Value>
			</Setter>
		</Style>

The following example shows a Value property that uses the Binding declaration. For the complete example, see Binding Validation Sample.

<Style x:Key="textBoxInError" TargetType="{x:Type TextBox}">
  <Style.Triggers>
    <Trigger Property="Validation.HasError" Value="true">
      <Setter Property="ToolTip"
        Value="{Binding RelativeSource={x:Static RelativeSource.Self},
                        Path=(Validation.Errors)[0].ErrorContent}"/>
    </Trigger>
  </Style.Triggers>
</Style>

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.

.NET Framework

Supported in: 3.5, 3.0

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