Block.LineStackingStrategy 屬性

定義

命名空間:

System.Windows.Documents

組件:

PresentationFramework.dll

取得或設定在區塊層級非固定格式內容項目中，針對每一行文字決定線條方塊的方式。

public:
 property System::Windows::LineStackingStrategy LineStackingStrategy { System::Windows::LineStackingStrategy get(); void set(System::Windows::LineStackingStrategy value); };

public System.Windows.LineStackingStrategy LineStackingStrategy { get; set; }

member this.LineStackingStrategy : System.Windows.LineStackingStrategy with get, set

Public Property LineStackingStrategy As LineStackingStrategy

屬性值

LineStackingStrategy

其中一個 LineStackingStrategy 值，指定在區塊層級非固定格式內容項目中，針對每一行文字決定線條方塊的方式。 預設值是 MaxHeight。

範例

下列範例示範如何使用 LineStackingStrategy 屬性來判斷如何為 的 TextBlock 文字行建立行框。 第一 TextBlock 個 的 值為 MaxHeight ，而第二 TextBlock 個 的 值為 BlockLineHeight LineStackingStrategy 。

<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
  <StackPanel>
    
    <!-- This TextBlock has a LineStackingStrategy set to "MaxHeight". -->
    <TextBlock LineStackingStrategy="MaxHeight" LineHeight="10" Width="500" TextWrapping="Wrap" 
     Background="Yellow">
      Use the <Span FontSize="30">LineStackingStrategy</Span> property to determine how a line box is
      created for each line. A value of <Span FontSize="20">MaxHeight</Span> specifies that the stack
      height is the smallest value that contains all the inline elements on that line when those
      elements are properly aligned. A value of <Span FontSize="20">BlockLineHeight</Span> specifies
      that the stack height is determined by the block element LineHeight property value.
    </TextBlock>

    <!-- Here is the same TextBlock but the LineStackingStrategy is set to "BlockLineHeight". -->
    <TextBlock LineStackingStrategy="BlockLineHeight" LineHeight="10" Width="500" TextWrapping="Wrap" 
     Background="Blue" Margin="0,40,0,0">
      Use the <Span FontSize="30">LineStackingStrategy</Span> property to determine how a line box is
      created for each line. A value of <Span FontSize="20">MaxHeight</Span> specifies that the stack
      height is the smallest value that contains all the inline elements on that line when those
      elements are properly aligned. A value of <Span FontSize="20">BlockLineHeight</Span> specifies
      that the stack height is determined by the block element LineHeight property value.
    </TextBlock>

  </StackPanel>
</Page>

下圖顯示上述程式碼的結果。

備註

此相依性屬性也有附加屬性使用方式。 在 XAML 中，使用方式是 <object Block.LineStackingStrategy="value".../> ，其中 object 是物件元素 (通常是衍生類別中 Block 所包含的流程專案) ，而 value 是列舉的 LineStackingStrategy 字串值。 在程式碼中，和 SetLineStackingStrategy 方法支援 GetLineStackingStrategy 附加屬性使用方式。 附加屬性使用方式並不常見。

相依性屬性資訊

識別碼欄位	LineStackingStrategyProperty
中繼資料屬性設定為 true	AffectsMeasure, AffectsRender