稳扎稳打Silverlight(31) - 2.0Tip/Trick之加载XAP, 加载XAML, 加载DLL, AppManifest.xaml文件说明, 自定义鼠标指针_silverlight

< UserControl x:Class ="Silverlight20.Tip.LoadXap"

xmlns ="http://scheR_491_11845@as.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x ="http://scheR_491_11845@as.microsoft.com/winfx/2006/xaml" >

< Grid x:Name ="LayoutRoot" BACkground ="White" >

< StackPanel >

< Button x:Name ="load" Content ="加载游戏 - 俄罗斯方块" Click ="load_Click" Margin ="5" />

< Grid x:Name ="container" Margin ="5" />

</ StackPanel >

</ Grid >

</ UserControl >

using System;

using System.Collections.Generic;

using System.Linq;

using System.Net;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Animation;

using System.Windows.Shapes;

using System.Windows.resources;

using System.IO;

using System.Xml.Linq;

using System.Reflection;

namespace Silverlight20.Tip

{

public partial class LoadXap : UserControl

{

public LoadXap()

@H_802_403@

initializeComponent();

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private void load_Click(object sender, routedEventArgs E)

Uri uri = new Uri("YYTetris.xap", UriKind.RelativE);

// 用 WebClient 下载指定的 XAP

WebClient client = new WebClient();

client.openReadCoR_491_11845@pleted += new OpenReadCoR_491_11845@pletedEventHandler(client_OpenReadCoR_491_11845@pleted);

client.openReadAsync(uri);

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void client_OpenReadCoR_491_11845@pleted(object sender, OpenReadCoR_491_11845@pletedEventArgs E)

* StreamresourceInfo - 提供对通过 Silverlight 应用程序模型检索资源的支持

* AssemblyPart - 包含在 Silverlight 程序内的程序集

* AssemblyPart.Load() - 加载指定的程序集到当前应用程序域中

* Application.GetresourceStream() - 对 zip 类型的文件自动解压缩

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// YYTetris.xap 的 AppManifest.xaml 的信息如下

<Deployment.Parts>

</Deployment.Parts>

</Deployment>

@H_940_419@

// 可以通过 Deployment.Current 检索 AppManifest.xaml 中的 Deployment 对象

// 取得 XAP 的 AppManifest.xaml 中的 Deployment.Parts 内的全部 AssemblyPart 节点信息

StreamresourceInfo resource = App.GetresourceStream(

new StreamresourceInfo(e.Result, null),

new Uri("AppManifest.xaml", UriKind.RelativE));

String resourceManifest = new StreamReader(resource.Stream).ReadToEnd();

List<XElement> assemblyParts = XDocument.Parse(resourceManifest).Root.Elements().Elements().ToList();

Assembly assembly = null;

foreach (XElement element in assemblyParts)

{

// 取出 AssemblyPart 的 source 指定的 dll

String source = element.Attribute("source").Value;

AssemblyPart assemblyPart = new AssemblyPart();

StreamresourceInfo streamInfo = App.GetresourceStream(

new StreamresourceInfo(e.Result, "application/binary"),

new Uri(source, UriKind.RelativE));

if (source == "YYTetris.dll")

assembly = assemblyPart.Load(streamInfo.Stream);

else

assemblyPart.Load(streamInfo.Stream);

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// 实例化 YYTetris.xap 的主函数

var type = assembly.GetType("YYTetris.Page");

var yyTetris = Activator.CreateInstance(typE) as UIElement;

// 添加 YYTetris.xap 到指定的容器内，并更新 UI

container.Children.Add(yyTetris);

container.updateLayout();

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using System;

using System.Collections.Generic;

using System.Linq;

using System.Net;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Animation;

using System.Windows.Shapes;

using System.Windows.resources;

using System.IO;

namespace Silverlight20.Tip

{

public partial class LoadXaml : UserControl

@H_276_1450@

{

public LoadXaml()

initializeComponent();

this.Loaded += new routedEventHandler(LoadXaml_Loaded);

void LoadXaml_Loaded(object sender, routedEventArgs E)

// 获取指定的 Xaml

Uri uri = new Uri("/Silverlight20;component/Tip/XamlDemo.xaml", UriKind.RelativE);

StreamresourceInfo resource = App.GetresourceStream(uri);

using (StreamReader reader = new StreamReader(resource.Stream))

{

// XamlReader.Load() - 加载 Xaml

UserControl control =

System.Windows.Markup.XamlReader.Load(reader.ReadToEnd()) as UserControl;

LayoutRoot.Children.Add(control);

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}

调用

方法

using System;

using System.Net;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Documents;

using System.Windows.Ink;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Animation;

using System.Windows.Shapes;

namespace LoadDllDemo

{

public class Test

{

@H_674_1935@

@H_478_1944@/**//// <sumMary>

/// Say Hello 的方法

/// </sumMary>

/// <param NAME="name">名字</param>

/// <returns></returns>

public String Hello(String Name)

return "Hello: " + NAME;

@H_128_1419@

}

< UserControl x:Class ="Silverlight20.Tip.LoadDll"

xmlns ="http://scheR_491_11845@as.microsoft.com/winfx/2006/xaml/presentation"

xmlns:x ="http://scheR_491_11845@as.microsoft.com/winfx/2006/xaml" >

< Grid x:Name ="LayoutRoot" BACkground ="White" >

< TextBlock x:Name ="lblResult" Margin ="5" />

</ Grid >

</ UserControl >

using System;

using System.Collections.Generic;

using System.Linq;

using System.Net;

using System.Windows;

using System.Windows.Controls;

using System.Windows.Documents;

using System.Windows.Input;

using System.Windows.Media;

using System.Windows.Media.Animation;

using System.Windows.Shapes;

using System.Reflection;

namespace Silverlight20.Tip

{

public partial class LoadDll : UserControl

@H_388_2450@{

public LoadDll()

initializeComponent();

this.Loaded += new routedEventHandler(LoadDll_Loaded);

void LoadDll_Loaded(object sender, routedEventArgs E)

Uri uri = new Uri("LoadDllDemo.dll", UriKind.RelativE);

// 用 WebClient 下载指定的 DLL

WebClient client = new WebClient();

client.openReadCoR_491_11845@pleted += new OpenReadCoR_491_11845@pletedEventHandler(client_OpenReadCoR_491_11845@pleted);

client.openReadAsync(uri);

void client_OpenReadCoR_491_11845@pleted(object sender, OpenReadCoR_491_11845@pletedEventArgs E)

// 加载指定的 dll

AssemblyPart assemblyPart = new AssemblyPart();

Assembly assembly = assemblyPart.Load(e.Result);

// 调用 LoadDllDemo.Test 的 Hello 方法，参数为 webabcd

Type type = assembly.GetType("LoadDllDemo.Test");

object obj = Activator.CreateInstance(typE);

MethodInfo methodInfo = type.getmethod("Hello");

lblResult.Text = methodInfo.Invoke(obj, new object[] @H_944_2828@{ "webabcd" }).ToString();

// 注：

// AssemblyPart.Load() 用于把程序集加载到当前程序域

// 此特性可实现按需加载程序集（部署时，把这类的程序集从 xap 包中移除，用到时再调用指定发方法下载即可）

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}