BlockUIContainer.Child Propriété

Définition

Espace de noms:

System.Windows.Documents

Assembly:

PresentationFramework.dll

Obtient ou définit le UIElement hébergé par le BlockUIContainer.

public:
 property System::Windows::UIElement ^ Child { System::Windows::UIElement ^ get(); void set(System::Windows::UIElement ^ value); };

public System.Windows.UIElement Child { get; set; }

member this.Child : System.Windows.UIElement with get, set

Public Property Child As UIElement

Valeur de propriété

UIElement

UIElement hébergé par le BlockUIContainer.

Exemples

L’exemple suivant montre comment utiliser les éléments pour héberger UIElement des BlockUIContainer éléments dans le contenu de flux.

<FlowDocument ColumnWidth="400">
  <Section Background="GhostWhite">
    <Paragraph>
      A UIElement element may be embedded directly in flow content
      by enclosing it in a BlockUIContainer element.
    </Paragraph>
    <BlockUIContainer>
      <Button>Click me!</Button>
    </BlockUIContainer>
    <Paragraph>
      The BlockUIContainer element may host no more than one top-level
      UIElement.  However, other UIElements may be nested within the
      UIElement contained by an BlockUIContainer element.  For example,
      a StackPanel can be used to host multiple UIElement elements within
      a BlockUIContainer element.
    </Paragraph>
    <BlockUIContainer>
      <StackPanel>
        <Label Foreground="Blue">Choose a value:</Label>
        <ComboBox>
          <ComboBoxItem IsSelected="True">a</ComboBoxItem>
          <ComboBoxItem>b</ComboBoxItem>
          <ComboBoxItem>c</ComboBoxItem>
        </ComboBox>
        <Label Foreground ="Red">Choose a value:</Label>
        <StackPanel>
          <RadioButton>x</RadioButton>
          <RadioButton>y</RadioButton>
          <RadioButton>z</RadioButton>
        </StackPanel>
        <Label>Enter a value:</Label>
        <TextBox>
          A text editor embedded in flow content.
        </TextBox>
      </StackPanel>
    </BlockUIContainer>
  </Section>
</FlowDocument>

La figure suivante montre le rendu de cet exemple.

L’exemple suivant montre comment utiliser la Child propriété par programmation.

Section secx = new Section();
Paragraph par1 = new Paragraph(new Run(" Text to precede the button... "));
Paragraph par2 = new Paragraph(new Run(" Text to follow the button... "));

// Create a new button to be hosted in the section.
Button buttonx = new Button();
buttonx.Content = "Click me!";

// Create a new BlockUIContainer, and assign the button 
// as the UI container's child.
BlockUIContainer uiCont = new BlockUIContainer();
uiCont.Child = buttonx;

// Add the text runs and UI container to the paragraph, in order.
secx.Blocks.Add(par1);
secx.Blocks.Add(uiCont);
secx.Blocks.Add(par2);

Dim secx As New Section()
Dim par1 As New Paragraph(New Run(" Text to precede the button... "))
Dim par2 As New Paragraph(New Run(" Text to follow the button... "))

' Create a new button to be hosted in the section.
Dim buttonx2 As New Button()
buttonx2.Content = "Click me!"

' Create a new BlockUIContainer, and assign the button 
' as the UI container's child.
Dim uiCont2 As New BlockUIContainer()
uiCont2.Child = buttonx2

' Add the text runs and UI container to the paragraph, in order.
secx.Blocks.Add(par1)
secx.Blocks.Add(uiCont2)
secx.Blocks.Add(par2)

Remarques

Un BlockUIContainer hôte peut héberger directement plusieurs UIElement enfants. Toutefois, l’élément enfant hébergé par un BlockUIContainer enfant peut héberger des enfants de son propre choix.

En XAML, l’encapsulage d’un UIElement BlockUIContainer élément équivaut à définir celle-ci UIElement comme valeur de la Child propriété.