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Block Class

An abstract class that provides a base for all block-level flow content elements.

Namespace: System.Windows.Documents
Assembly: PresentationFramework (in presentationframework.dll)
XML Namespace:  http://schemas.microsoft.com/winfx/2006/xaml/presentation

public abstract class Block : TextElement
public abstract class Block extends TextElement
public abstract class Block extends TextElement
This class is abstract; see Inheritance Hierarchy for derived non-abstract classes usable in XAML.

Elements that inherit from Block (such as Section) can be used to group elements under a common parent or to apply common attributes to a group. Conceptually, this is similar to how you might have used the <DIV> tag in HTML.

The following example demonstrates declarative usage for various flow content elements and associated attributes. Elements and attributes demonstrated include:

<FlowDocument 
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
>
    <Paragraph FontSize="18">Flow Format Example</Paragraph>
  
    <Paragraph>
      Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy 
      nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi 
      enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis 
      nisl ut aliquip ex ea commodo consequat. Duis autem vel eum iriure.
    </Paragraph>
    <Paragraph>
      Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh 
      euismod tincidunt ut laoreet dolore magna aliquam erat volutpat. Ut wisi enim 
      ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl 
      ut aliquip ex ea commodo consequat. Duis autem vel eum iriure.
    </Paragraph>

    <Paragraph FontSize="18">More flow elements</Paragraph>
    <Paragraph FontSize="15">Inline, font type and weight, and a List</Paragraph>
    
    <List>
      <ListItem><Paragraph>ListItem 1</Paragraph></ListItem>
      <ListItem><Paragraph>ListItem 2</Paragraph></ListItem>
      <ListItem><Paragraph>ListItem 3</Paragraph></ListItem>
      <ListItem><Paragraph>ListItem 4</Paragraph></ListItem>
      <ListItem><Paragraph>ListItem 5</Paragraph></ListItem>
    </List>

    <Paragraph><Bold>Bolded</Bold></Paragraph>
    <Paragraph><Underline>Underlined</Underline></Paragraph>
    <Paragraph><Bold><Underline>Bolded and Underlined</Underline></Bold></Paragraph>
    <Paragraph><Italic>Italic</Italic></Paragraph>
    
    <Paragraph><Span>The Span element, no inherent rendering</Span></Paragraph>
    <Paragraph><Run>The Run element, no inherent rendering</Run></Paragraph>    

    <Paragraph FontSize="15">Subscript, Superscript</Paragraph>

    <Paragraph>
      <Run Typography.Variants="Superscript">This text is Superscripted.</Run> This text isn't.
    </Paragraph>
    <Paragraph>
      <Run Typography.Variants="Subscript">This text is Subscripted.</Run> This text isn't.
    </Paragraph>
    <Paragraph>
      If a font does not support a particular form (such as Superscript) a default font form will be displayed.
    </Paragraph>
    
    <Paragraph FontSize="15">Blocks, breaks, paragraph</Paragraph>
    
    <Section><Paragraph>A block section of text</Paragraph></Section>
    <Section><Paragraph>Another block section of text</Paragraph></Section>
    
    <Paragraph><LineBreak/></Paragraph>
    <Section><Paragraph>... and another section, preceded by a LineBreak</Paragraph></Section>
    
    <Section BreakPageBefore="True"/>
    <Section><Paragraph>... and another section, preceded by a PageBreak</Paragraph></Section>
        
    <Paragraph>Finally, a paragraph. Note the break between this paragraph ...</Paragraph>
    <Paragraph TextIndent="25">... and this paragraph, and also the left indention.</Paragraph>
        
    <Paragraph><LineBreak/></Paragraph>
    
</FlowDocument>

System.Object
   System.Windows.Threading.DispatcherObject
     System.Windows.DependencyObject
       System.Windows.ContentElement
         System.Windows.FrameworkContentElement
           System.Windows.Documents.TextElement
            System.Windows.Documents.Block
               System.Windows.Documents.BlockUIContainer
               System.Windows.Documents.List
               System.Windows.Documents.Paragraph
               System.Windows.Documents.Section
               System.Windows.Documents.Table

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

Windows 98, Windows Server 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0

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