[XAML]

<FlowDocument xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

<!-- By default, Section applies no formatting to elements contained

within it. However, in this example, the section has a Background

property value of "Red", therefore, the three paragraphs (the block)

inside the section also have a red background. -->

<Section Background="Red">

<Paragraph>

Paragraph 1

</Paragraph>

<Paragraph>

Paragraph 2

</Paragraph>

<Paragraph>

Paragraph 3

</Paragraph>

</Section>

</FlowDocument>

[XAML]

<FlowDocument ColumnWidth="400">

<Section Background="GhostWhite">

<Paragraph>

A UIElement element may be embedded directly in flow content

by enclosing it in a BlockUIContainer element.

</Paragraph>

<BlockUIContainer>

<Button>Click me!</Button>

</BlockUIContainer>

<Paragraph>

The BlockUIContainer element may host no more than one top-level

UIElement. However, other UIElements may be nested within the

UIElement contained by an BlockUIContainer element. For example,

a StackPanel can be used to host multiple UIElement elements within

a BlockUIContainer element.

</Paragraph>

<BlockUIContainer>

<StackPanel>

<Label Foreground="Blue">Choose a value:</Label>

<ComboBox>

<ComboBoxItem IsSelected="True">a</ComboBoxItem>

<ComboBoxItem>b</ComboBoxItem>

<ComboBoxItem>c</ComboBoxItem>

</ComboBox>

<Label Foreground ="Red">Choose a value:</Label>

<StackPanel>

<RadioButton>x</RadioButton>

<RadioButton>y</RadioButton>

<RadioButton>z</RadioButton>

</StackPanel>

<Label>Enter a value:</Label>

<TextBox>

A text editor embedded in flow content.

</TextBox>

</StackPanel>

</BlockUIContainer>

</Section>

</FlowDocument>

XAML]

<FlowDocument xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

<Paragraph>

<Figure

Width="300" Height="100"

Background="GhostWhite" HorizontalAnchor="PageLeft" >

<Paragraph FontStyle="Italic" Background="Beige" Foreground="DarkGreen" >

A Figure embeds content into flow content with placement properties

that can be customized independently from the primary content flow

</Paragraph>

</Figure>

</Paragraph>

</FlowDocument>