BulletDecorator.Background 屬性

定義

命名空間:

System.Windows.Controls.Primitives

組件:

PresentationFramework.dll

取得或設定 BulletDecorator 控制項的背景色彩。

public:
 property System::Windows::Media::Brush ^ Background { System::Windows::Media::Brush ^ get(); void set(System::Windows::Media::Brush ^ value); };

public System.Windows.Media.Brush Background { get; set; }

member this.Background : System.Windows.Media.Brush with get, set

Public Property Background As Brush

屬性值

Brush

Bullet 之 Child 和 BulletDecorator 的背景色彩。 預設為 null。

範例

下列範例示範如何在 控制項上 BulletDecorator 設定 Background 屬性。

BulletDecorator myBulletDecorator = new BulletDecorator();
Image myImage = new Image();
BitmapImage myBitmapImage = new BitmapImage();
myBitmapImage.BeginInit();
myBitmapImage.UriSource = new Uri(@"pack://application:,,/images/apple.jpg");
myBitmapImage.EndInit();
myImage.Source = myBitmapImage;
myImage.Width = 10;
myBulletDecorator.Bullet = myImage;
myBulletDecorator.Margin = new Thickness(0, 10, 0, 0);
myBulletDecorator.VerticalAlignment = VerticalAlignment.Center;
myBulletDecorator.Background = Brushes.Yellow;
TextBlock myTextBlock = new TextBlock();
myTextBlock.Text = "This BulletDecorator created by using code";
myTextBlock.TextWrapping = TextWrapping.Wrap;
myTextBlock.HorizontalAlignment = HorizontalAlignment.Left;
myTextBlock.Width = 100;
myTextBlock.Foreground = Brushes.Purple;
myBulletDecorator.Child = myTextBlock;

Dim myBulletDecorator = New BulletDecorator()
Dim myImage = New Image()
Dim myBitmapImage = New BitmapImage()
myBitmapImage.BeginInit()
myBitmapImage.UriSource = _
   New Uri("pack://application:,,/images/apple.jpg")
myBitmapImage.EndInit()
myImage.Source = myBitmapImage
myImage.Width = 10
myBulletDecorator.Bullet = myImage
myBulletDecorator.Margin = New Thickness(0, 10, 0, 0)
myBulletDecorator.VerticalAlignment = VerticalAlignment.Center
myBulletDecorator.Background = Brushes.Yellow
Dim myTextBlock = New TextBlock()
myTextBlock.Text = "This BulletDecorator created by using code"
myTextBlock.TextWrapping = TextWrapping.Wrap
myTextBlock.HorizontalAlignment = HorizontalAlignment.Left
myTextBlock.Width = 100
myTextBlock.Foreground = Brushes.Purple
myBulletDecorator.Child = myTextBlock

<BulletDecorator  Grid.Row="1" Grid.Column="0" Margin="0,5,0,0"
                  VerticalAlignment="Center" Background="Yellow">
  <BulletDecorator.Bullet>
    <Image Source="images\apple.jpg"/>
  </BulletDecorator.Bullet>
  <TextBlock
    Width="100" 
    TextWrapping="Wrap" 
    HorizontalAlignment="Left"
    Foreground ="Purple">
    A Simple BulletDecorator
  </TextBlock>
</BulletDecorator>

備註

屬性 Background 會 Brush 定義 ，以用來填滿 內的 BulletDecorator 區域。 對於某些父版面配置元素，針對 定義的 BulletDecorator 區域可能會延伸到其 Bullet 和 Child 內容之外。 例如，如果 BulletDecorator 是 控制項中 Grid 儲存格的單一子系，則 Background 屬性會套用至整個儲存格。 這是因為儲存格中 Grid 的內容預設會以所有方向延展以填滿儲存格。 不過，如果您將 屬性設定為 ，則 Background 屬性只會影響 的實際內容區域 BulletDecorator 。 BulletDecorator VerticalAlignment Center 或者，您可以將 括 BulletDecorator 住 在 Panel 專案中。

相依性屬性資訊

識別碼欄位	BackgroundProperty
中繼資料屬性設定為 true	AffectsRender, SubPropertiesDoNotAffectRender

另請參閱

• 如何：建立 BulletDecorator