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11/17/2011

Paragraph Class

Microsoft Silverlight will reach end of support after October 2021. Learn more.

Provides a block-level content element that is used to group content into a paragraph.

Inheritance Hierarchy

System.Object
  System.Windows.DependencyObject
    System.Windows.Documents.TextElement
      System.Windows.Documents.Block
        System.Windows.Documents.Paragraph

Namespace: System.Windows.Documents
Assembly: System.Windows (in System.Windows.dll)

Syntax

'Declaration
<ContentPropertyAttribute("Inlines", True)> _
Public NotInheritable Class Paragraph _
    Inherits Block

[ContentPropertyAttribute("Inlines", true)]
public sealed class Paragraph : Block

<Paragraph .../>
-or-
<Paragraph ...>
  oneOrMoreInlines
</Paragraph>
-or-
<Paragraph ...>
  mixedContent
</Paragraph>

XAML Values

oneOrMoreInlines
One or more elements that derive from the Inline type. Elements declared here become items in the Paragraph.Inlines collection.
mixedContent
A mixture of inner text and elements that derive from the Inline type. See Remarks.

The Paragraph type exposes the following members.

Constructors

	Name	Description
	Paragraph	Initializes a new instance of the Paragraph class.

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Properties

	Name	Description
	CharacterSpacing	Gets or sets the distance between characters of text in the control measured in 1000ths of the font size. (Inherited from TextElement.)
	ContentEnd	Gets a TextPointer that represents the end of the content in the element. (Inherited from TextElement.)
	ContentStart	Gets a TextPointer that represents the start of content in the element. (Inherited from TextElement.)
	Dispatcher	Gets the Dispatcher this object is associated with. (Inherited from DependencyObject.)
	ElementEnd	Gets a TextPointer that represents the position just after the end of the element. (Inherited from TextElement.)
	ElementStart	Gets a TextPointer that represents the position just before the start of the element. (Inherited from TextElement.)
	FontFamily	Gets or sets the preferred top-level font family for the content of the element. (Inherited from TextElement.)
	FontSize	Gets or sets the font size for the content of the element. (Inherited from TextElement.)
	FontStretch	Gets or sets the glyph width of the font in a family to select. (Inherited from TextElement.)
	FontStyle	Gets or sets the font style for the content in this element. (Inherited from TextElement.)
	FontWeight	Gets or sets the top-level font weight to select from the font family for the content in this element. (Inherited from TextElement.)
	Foreground	Gets or sets the Brush to apply to the content in this element. (Inherited from TextElement.)
	Inlines	Gets an InlineCollection containing the top-level Inline elements that include the contents of the Paragraph.
	Language	Gets or sets the language of the content within an TextElement element. (Inherited from TextElement.)
	LineHeight	Gets or sets the height of each line of content. (Inherited from Block.)
	LineStackingStrategy	Gets or sets a value that indicates how a line box is determined for each line of text in a Block. (Inherited from Block.)
	Name	Gets or sets a unique identification for the object. Name can only be set from initial parsing of XAML. (Inherited from TextElement.)
	TextAlignment	Gets or sets the horizontal alignment of the text content. (Inherited from Block.)

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Methods

	Name	Description
	CheckAccess	Determines whether the calling thread has access to this object. (Inherited from DependencyObject.)
	ClearValue	Clears the local value of a dependency property. (Inherited from DependencyObject.)
	Equals(Object)	Determines whether the specified Object is equal to the current Object. (Inherited from Object.)
	Finalize	Allows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
	FindName	Gets an object in the Silverlight object model by referencing the object's x:Name or Name attribute value. (Inherited from TextElement.)
	GetAnimationBaseValue	Returns any base value established for a Silverlight dependency property, which would apply in cases where an animation is not active. (Inherited from DependencyObject.)
	GetHashCode	Serves as a hash function for a particular type. (Inherited from Object.)
	GetType	Gets the Type of the current instance. (Inherited from Object.)
	GetValue	Returns the current effective value of a dependency property from a DependencyObject. (Inherited from DependencyObject.)
	MemberwiseClone	Creates a shallow copy of the current Object. (Inherited from Object.)
	OnCreateAutomationPeer	Returns a class-specific AutomationPeer implementation for use by the Silverlight automation infrastructure. (Inherited from TextElement.)
	ReadLocalValue	Returns the local value of a dependency property, if a local value is set. (Inherited from DependencyObject.)
	SetValue	Sets the local value of a dependency property on a DependencyObject. (Inherited from DependencyObject.)
	ToString	Returns a string that represents the current object. (Inherited from Object.)

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Remarks

A Paragraph element is used to group content into a paragraph. The simplest use of Paragraph is to create a paragraph of text in a RichTextBox. For more information about RichTextBox content model, see the "Content Model" section in RichTextBox Overview topic.

In addition to plain text, a Paragraph element can host other Inline elements. The following are the valid child elements:

Mixed Content in XAML

The Paragraph element supports a content model that allows you to mix text and Inline elements in its XAML content. An implicit Run element is created for each block of text. Then, both the Run and Inline elements are added to the Paragraph.Inlines collection. Mixed content is not permitted in most other XAML content models. However, you can use mixed content in Paragraph, Span, and TextBlock. For more information about the Paragraph content model, see the "Content Model" section in RichTextBox Overview.

Examples

The following example shows how to create a RichTextBox with a paragraph and some bold text in XAML and code.

<!--A RichTextBox with intial content in it.-->
<RichTextBox VerticalScrollBarVisibility="Auto">
    <Paragraph>
        A RichTextBox with <Bold>initial content</Bold> in it.
    </Paragraph>
</RichTextBox>

'A RichTextBox with intial content in it.
Private Sub ContentRTB()
    'Create a new RichTextBox with its VerticalScrollBarVisibility property set to Auto.
    Dim MyRTB As New RichTextBox()
    MyRTB.VerticalScrollBarVisibility = ScrollBarVisibility.Auto

    ' Create a Run of plain text and some bold text.
    Dim myRun1 As New Run()
    myRun1.Text = "A RichTextBox with "
    Dim myBold As New Bold()
    myBold.Inlines.Add("initial content ")
    Dim myRun2 As New Run()
    myRun2.Text = "in it."

    ' Create a paragraph and add the Run and Bold to it.
    Dim myParagraph As New Paragraph()
    myParagraph.Inlines.Add(myRun1)
    myParagraph.Inlines.Add(myBold)
    myParagraph.Inlines.Add(myRun2)

    ' Add the paragraph to the RichTextBox.
    MyRTB.Blocks.Add(myParagraph)

    'Add the RichTextBox to the StackPanel.
    MySP.Children.Add(MyRTB)
End Sub

//A RichTextBox with intial content in it.
private void ContentRTB()
{
    //Create a new RichTextBox with its VerticalScrollBarVisibility property set to Auto.
    RichTextBox MyRTB = new RichTextBox();
    MyRTB.VerticalScrollBarVisibility = ScrollBarVisibility.Auto;

    // Create a Run of plain text and some bold text.
    Run myRun1 = new Run();
    myRun1.Text = "A RichTextBox with ";
    Bold myBold = new Bold();
    myBold.Inlines.Add("initial content ");
    Run myRun2 = new Run();
    myRun2.Text = "in it.";

    // Create a paragraph and add the Run and Bold to it.
    Paragraph myParagraph = new Paragraph();
    myParagraph.Inlines.Add(myRun1);
    myParagraph.Inlines.Add(myBold);
    myParagraph.Inlines.Add(myRun2);

    // Add the paragraph to the RichTextBox.
    MyRTB.Blocks.Add(myParagraph);

    //Add the RichTextBox to the StackPanel.
    MySP.Children.Add(MyRTB);
}

Version Information

Silverlight

Supported in: 5, 4

Silverlight for Windows Phone

Supported in: Windows Phone OS 7.1

Platforms

For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.

Thread Safety

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

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