<Grid Background="{ThemeResource ApplicationPageBackgroundThemeBrush}">
        <Grid.RowDefinitions>
            <RowDefinition Height="Auto"/>
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>

        <StackPanel x:Name="TitlePanel" Grid.Row="0" Margin="12,35,0,28">
            <TextBlock Text="我的应用程序" FontSize="20"  />
            <TextBlock Text="TextBlock" FontSize="60" />
        </StackPanel>

        <Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
            <StackPanel x:Name="stackPanel">
                <TextBlock x:Name="TextBlock2" FontSize="20" Height="30" Text="你好，我是TextBlock控件" Foreground="Red" ></TextBlock>
                <TextBlock FontSize="20">
                    <TextBlock.Inlines>
                        <Run  FontWeight="Bold" FontSize="14" Text="TextBlock. " />
                        <Run FontStyle="Italic" FontSize="18" Text="linear gradient text. ">
                            <Run.Foreground>
                                <LinearGradientBrush>
                                    <GradientStop Color="Green" Offset="0.0" />
                                    <GradientStop Color="Purple" Offset="0.25" />
                                    <GradientStop Color="Orange" Offset="0.5" />
                                    <GradientStop Color="Blue" Offset="0.75" />
                                </LinearGradientBrush>
                            </Run.Foreground>
                        </Run>
                        <Run FontStyle="Italic" Foreground="Green" Text=" green " />
                        <Span Foreground="Green">Span</Span>
                    </TextBlock.Inlines>
                </TextBlock>
                <TextBlock FontSize="20">         
                    你好! 
                    <LineBreak/>
                    我是TextBlock
                    <LineBreak/>
                    再见
                    <LineBreak/>
                    --2014年6月8日
                </TextBlock>
                <TextBlock TextWrapping="Wrap" FontSize="20">         
                    好像内容太长长长长长长长长长长长长长长长长长长了
                </TextBlock>
                <!--
                TextTrimming - 文字溢出时的显示方式
                    TextTrimming.None - 不做任何处理
                    TextTrimming.WordEllipsis - 在边界处，用省略号代替剩余文本
            -->
                <TextBlock FontSize="15" HorizontalAlignment="Left" Text="文字溢出时的显示方式" Width="200" TextTrimming="WordEllipsis" />
                 <TextBlock Text="颜色变变变变变变" FontSize="30">
                    <TextBlock.Foreground>
                        <LinearGradientBrush>
                            <GradientStop Color="#FF0000FF" Offset="0.0" />
                            <GradientStop Color="#FFEEEEEE" Offset="1.0" />
                        </LinearGradientBrush>
                    </TextBlock.Foreground>
                </TextBlock>
                <!--
                FrameworkElement.FlowDirection - 指定文本或界面元素在它们的父元素中的流动方向
                    FlowDirection.LeftToRight - 内容从左到右流动（默认值）
                    FlowDirection.RightToLeft - 内容从右到左流动
            -->
                <TextBlock FontSize="18" HorizontalAlignment="Left" Text="从右到左流动" Width="200" FlowDirection="RightToLeft" />
                <TextBlock FontSize="18" HorizontalAlignment="Left" Text="从左到右流动" Width="200" FlowDirection="LeftToRight" />
                <TextBlock FontSize="18" Name="lblSource" IsTextSelectionEnabled="True" SelectionChanged="txt_SelectionChanged_1">
                    <TextBlock.Inlines>
                        <Run>测试文本是否可被选中</Run>                           
                    </TextBlock.Inlines>
                </TextBlock>

            </StackPanel>
        </Grid>
    </Grid>