Silverlight:如何打包Theme

      Silverlight企业级开发中,项目中会出现大量的Style资源文件,如何将这些XAML文件打包成dll,以满足动态改变Theme的需求呢?通过参考Toolkit的源码中有关Theme.dll

的实现方式,本文将详细叙述这一过程:

      1.创建一个Silverlight  Class Library,命名为BlackColorTheme.

      2.创建需要的ResourceDictionary

              

      这里创建了ButtonStyle.xaml,HyperlinkButton.xaml2个文件,Build Action设置为Resource

      以ButtonStyle为例,我们设置点简单的样式:

<ResourceDictionary
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <Style TargetType="Button" x:Key="DefaultButtonStyle">
        <Setter Property="Background" Value="Black"></Setter>
    </Style>
    <Style TargetType="Button" BasedOn="{StaticResource DefaultButtonStyle}"/>
</ResourceDictionary>

      3.创建一个Theme.xaml,将我们的样式文件引入

      

       Build Action仍需要设置为Resource,Theme.xaml的内容如下:

<ResourceDictionary
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">
    <ResourceDictionary.MergedDictionaries>
        <ResourceDictionary Source="/BlackColorTheme;component/ButtonStyle.xaml"></ResourceDictionary>
        <ResourceDictionary Source="/BlackColorTheme;component/HyperlinkButton.xaml"></ResourceDictionary>
    </ResourceDictionary.MergedDictionaries>
</ResourceDictionary>

     4.创建一个BlackColorTheme.cs文件,继承System.Windows.Controls.Theming.Toolkit.Theme类

public class BlackColorTheme : Theme
{
    public static Uri ThemeResourceUri = new Uri("/BlackColorTheme;component/Theme.xaml", UriKind.RelativeOrAbsolute);
    public BlackColorTheme()
        : base(ThemeResourceUri)
    {

    }
    public static bool GetIsApplicationTheme(Application app)
    {
        return GetApplicationThemeUri(app) == ThemeResourceUri;
    }

    public static void SetIsApplicationTheme(Application app, bool value)
    {
        SetApplicationThemeUri(app, ThemeResourceUri);
    }
  }

     到这一步,我们已经创建完成了将松散的XAML文件打包成dll,具体如何使用创建好的主题,如果不熟悉这方面的操作,请参考我的这篇文章:Silverlight主题设置.