Style.TargetType Property

Reference

Definition

Namespace:: System.Windows

Assembly:: PresentationFramework.dll

Important

Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.

Gets or sets the type for which this style is intended.

public:
 property Type ^ TargetType { Type ^ get(); void set(Type ^ value); };

[System.Windows.Localizability(System.Windows.LocalizationCategory.NeverLocalize)]
[System.Windows.Markup.Ambient]
public Type TargetType { get; set; }

[<System.Windows.Localizability(System.Windows.LocalizationCategory.NeverLocalize)>]
[<System.Windows.Markup.Ambient>]
member this.TargetType : Type with get, set

Public Property TargetType As Type

Property Value

Type

The target type for this style.

Attributes: LocalizabilityAttribute AmbientAttribute

Examples

The following example defines a style that will be applied to all instances of the TextBlock element.

<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>

Setting the TargetType property to the TextBlock type without setting an x:Key implicitly sets the x:Key to {x:Type TextBlock}. This also means that if you give the above Style an x:Key value of anything other than {x:Type TextBlock}, the Style would not be applied to all TextBlock elements automatically. Instead, you need to apply the style to the TextBlock elements explicitly.

Many WPF controls consist of a combination of other WPF controls, so creating a style that applies to all controls of a type can have broad impact. For instance, if you create a style that targets the TextBox controls in a Canvas, the style is applied to all TextBox controls in the canvas, even if the TextBox is part of another control, such as a ComboBox.

Remarks

You can set a style on any element that derives from FrameworkElement or FrameworkContentElement. Therefore, your target type can be any of those elements. However, if you create a style with a TargetType property and base it on another style that also defines a TargetType property, the target type of the derived style must be the same as or be derived from the target type of the base style.

If you do not specify a TargetType, then you must specify an x:Key for your Style and also qualify the properties in your style with a class name.

XAML Attribute Usage

<object  TargetType="{x:Type typeName}"/>
-or-
<object  TargetType="typeName"/>

XAML Values

{x:Type ...} An x:Type Markup Extension markup extension usage.

typeName The type name of the class.

Applies to

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