Silverlight多个xap之间导航 silverlight整站程序动态加载xap包

XAML代码：

  <Border Name="Frame" Grid.Column="1" Style="{StaticResource ContentBorderStyle}">
                    <Grid Grid.Column="1" Name="gridFrame">

                    </Grid>
                </Border>

 

后台代码:

 private void LoadSolutionManagement()
        {
            WebClient Appclient = new WebClient();
            Appclient.OpenReadAsync(new Uri("UI.xap", UriKind.Relative));
            Appclient.OpenReadCompleted += new OpenReadCompletedEventHandler(Appclient_OpenReadCompleted);
        }

        private void Appclient_OpenReadCompleted(object sender, OpenReadCompletedEventArgs e)
        {
            CreateXAPResource("HuaweiSoft.COSTSW.UI.dll", "HuaweiSoft.COSTSW.UI.Views.ProjectContent", e.Result);
        }

        ///<summary>
/// 创建XAP包的反射实例并且加装到Grid中
///</summary>
///<param name="dllStr">XAP包中的编译完成的运行代码的DLL文件</param>
///<param name="mainStr">需要实例化的启动页面</param>
///<param name="resultStream">使用WebClient下载到的数据流</param>
        private void CreateXAPResource(string dllStr, string mainStr, Stream resultStream)
        {
            StreamResourceInfo streamResourceInfo = Application.GetResourceStream(new StreamResourceInfo(resultStream as Stream, null), new Uri(dllStr, UriKind.RelativeOrAbsolute));
            // 对Stream进行反射
            AssemblyPart assemblyPart = new AssemblyPart();
            Assembly assembly = assemblyPart.Load(streamResourceInfo.Stream);
            // 创建实例
            var uc = (UserControl)assembly.CreateInstance(mainStr);
            gridFrame.Children.Clear();
            gridFrame.Children.Add(uc);
        }