ContentControl.Content 属性

定义

命名空间:

System.Windows.Controls

程序集:

PresentationFramework.dll

获取或设置 ContentControl 的内容。

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

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

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

Public Property Content As Object

属性值

Object

一个包含控件内容的对象。 默认值是 null。

属性

BindableAttribute

示例

以下示例演示如何创建四 Button 个设置为下列值之一的控件 Content ：

• 一个字符串。

• DateTime 对象。

• UIElement 对象。

• 包含 Panel 其他 UIElement 对象的控件。

注意

尽管可扩展应用程序标记语言 (XAML) 版本的示例可以在每个按钮的内容周围使用 <Button.Content> 标记，但没有必要这样做。 有关详细信息，请参阅 XAML 概述 (WPF) 。

<!--Create a Button with a string as its content.-->
<Button>This is string content of a Button</Button>

<!--Create a Button with a DateTime object as its content.-->
<Button xmlns:sys="clr-namespace:System;assembly=mscorlib">
  <sys:DateTime>2004/3/4 13:6:55</sys:DateTime>
</Button>

<!--Create a Button with a single UIElement as its content.-->
<Button>
  <Rectangle Height="40" Width="40" Fill="Blue"/>
</Button>

<!--Create a Button with a panel that contains multiple objects 
as its content.-->
<Button>
  <StackPanel>
    <Ellipse Height="40" Width="40" Fill="Blue"/>
    <TextBlock TextAlignment="Center">Button</TextBlock>
  </StackPanel>
</Button>

// Create a Button with a string as its content.
Button stringContent = new Button();
stringContent.Content = "This is string content of a Button";

// Create a Button with a DateTime object as its content.
Button objectContent = new Button();
DateTime dateTime1 = new DateTime(2004, 3, 4, 13, 6, 55);

objectContent.Content = dateTime1;

// Create a Button with a single UIElement as its content.
Button uiElementContent = new Button();

Rectangle rect1 = new Rectangle();
rect1.Width = 40;
rect1.Height = 40;
rect1.Fill = Brushes.Blue;
uiElementContent.Content = rect1;

// Create a Button with a panel that contains multiple objects 
// as its content.
Button panelContent = new Button();
StackPanel stackPanel1 = new StackPanel();
Ellipse ellipse1 = new Ellipse();
TextBlock textBlock1 = new TextBlock();

ellipse1.Width = 40;
ellipse1.Height = 40;
ellipse1.Fill = Brushes.Blue;

textBlock1.TextAlignment = TextAlignment.Center;
textBlock1.Text = "Button";

stackPanel1.Children.Add(ellipse1);
stackPanel1.Children.Add(textBlock1);

panelContent.Content = stackPanel1;

' Add a string to a button.
Dim stringContent As New Button()
stringContent.Content = "This is string content of a Button"

' Add a DateTime object to a button.
Dim objectContent As New Button()
Dim dateTime1 As New DateTime(2004, 3, 4, 13, 6, 55)

objectContent.Content = dateTime1

' Add a single UIElement to a button.
Dim uiElementContent As New Button()

Dim rect1 As New Rectangle()
rect1.Width = 40
rect1.Height = 40
rect1.Fill = Brushes.Blue
uiElementContent.Content = rect1

' Add a panel that contains multpile objects to a button.
Dim panelContent As New Button()
Dim stackPanel1 As New StackPanel()
Dim ellipse1 As New Ellipse()
Dim textBlock1 As New TextBlock()

ellipse1.Width = 40
ellipse1.Height = 40
ellipse1.Fill = Brushes.Blue

textBlock1.TextAlignment = TextAlignment.Center
textBlock1.Text = "Button"

stackPanel1.Children.Add(ellipse1)
stackPanel1.Children.Add(textBlock1)

panelContent.Content = stackPanel1

下图显示了在上一示例中创建的四个按钮。

注解

由于 属性 Content 的类型为 Object，因此可以放入 的内容 ContentControl没有限制。 Content由 ContentPresenter（位于 的 ContentControl中ControlTemplate）显示。 WPF 中的每个ContentControl类型在其默认 ControlTemplate中都有 ContentPresenter 。 有关 如何 ContentPresenter 显示 Content的详细信息，请参阅 ContentPresenter。

依赖项属性信息

标识符字段	ContentProperty
元数据属性设置为 true	无

XAML 属性用法

<object Content="content"/>  

XAML 属性元素用法

<object> content</object>  

XAML 值

Content
文本或单个对象。