HeaderedItemsControl.Header Property

Reference

Definition

Namespace:: System.Windows.Controls

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 item that labels the control.

public:
 property System::Object ^ Header { System::Object ^ get(); void set(System::Object ^ value); };

[System.ComponentModel.Bindable(true)]
public object Header { get; set; }

[<System.ComponentModel.Bindable(true)>]
member this.Header : obj with get, set

Public Property Header As Object

Property Value

Object

An object that labels the HeaderedItemsControl. The default is null. A header can be a string or a UIElement.

Attributes: BindableAttribute

Examples

The following example shows how to create and use a header template to specify the appearance of the header.

<!--Define a control template for a HeaderedItemsControl-->
<Style TargetType="HeaderedItemsControl">
  <Setter Property="Template">
    <Setter.Value>
      <ControlTemplate TargetType="{x:Type HeaderedItemsControl}">
        <StackPanel>
          <Grid>
            <Rectangle Fill="{TemplateBinding Background}"/>
            <ContentPresenter ContentSource="Header"/>
          </Grid>
          <Grid>
            <Rectangle Stroke="{TemplateBinding BorderBrush}"/>
            <ItemsPresenter Margin="2,0,0,0"/>
          </Grid>
        </StackPanel>
      </ControlTemplate>
    </Setter.Value>
  </Setter>
</Style>

<DataTemplate x:Key="RedHeaderTemplate">
  <TextBlock Text="{Binding}" Foreground="Red" 
             FontSize="16" FontWeight="Bold" 
             TextWrapping="Wrap"/>
</DataTemplate>

<DataTemplate x:Key="GreenItemTemplate">
  <TextBlock Text="{Binding}" Foreground="Green" 
             FontSize="14" FontWeight="Bold"></TextBlock>
</DataTemplate>

<!--Crate a HeaderedItemControl with a red header and green items.-->
<HeaderedItemsControl Name="hitemsCtrl"  
                      Background="DarkBlue" 
                      BorderBrush="Black"
                      Header="Header"
                      HeaderTemplate="{StaticResource RedHeaderTemplate}"
                      ItemsSource="{Binding Source={StaticResource Numbers}}"
                      ItemTemplate = "{StaticResource GreenItemTemplate}" />

Remarks

Because the Header property is of type Object, there are no restrictions on what you can put in the Header. The Header is displayed by a ContentPresenter, which is in the HeaderTemplate of the HeaderedItemsControl. For more information about how the ContentPresenter displays the Header, see ContentPresenter.

XAML Attribute Usage

<object Header="headerString"/>

XAML Property Element Usage

<object>
  <object.Header>
    <UIElement />
  </object.Header>
</object>

XAML Values

headerString The string to use as a heading.

Dependency Property Information

Item	Value
Identifier field	HeaderProperty
Metadata properties set to `true`	None

Applies to

Sdílet prostřednictvím