wp7修改Panorama title的字体大小

• 可以自定义Titile的模板，具体XAML如下：

  <!--Panorama control-->
  <controls:Panorama Title="my application">
  <controls:Panorama.Background>
  <ImageBrush ImageSource="PanoramaBackground.png"/>
  </controls:Panorama.Background>

  
  <!--加入自定义标题字体-->
  <controls:Panorama.TitleTemplate>
  <DataTemplate>
  <TextBlock Text="My Title" FontSize="100" Margin="0,50,0,0" FontFamily="Lucida Sans Unicode" />
  </DataTemplate>
  </controls:Panorama.TitleTemplate>
  
  <!--Panorama item one-->
  <controls:PanoramaItem Header="first item">
  <!--Double line list with text wrapping-->
  <ListBox Margin="0,0,-12,0" ItemsSource="{Binding Items}">
  <ListBox.ItemTemplate>
  <DataTemplate>
  <StackPanel Margin="0,0,0,17" Width="432" Height="78">
  <TextBlock Text="{Binding LineOne}" TextWrapping="Wrap" Style="{StaticResource PhoneTextExtraLargeStyle}"/>
  <TextBlock Text="{Binding LineTwo}" TextWrapping="Wrap" Margin="12,-6,12,0" Style="{StaticResource PhoneTextSubtleStyle}"/>
  </StackPanel>
  </DataTemplate>
  </ListBox.ItemTemplate>
  </ListBox>
  </controls:PanoramaItem>