Slow and steady Silverlight (31)

Steady Silverlight-2.0tip/trick load xap, load XAML, load Dll,appmanifest.xaml file description, customize mouse pointer

Introduced

Silverlight 2.0 Tips and Tricks series

Load XAP-Loads the specified XAP file into the current Silverlight application

Load XAML-loads the specified XAML file into the current Silverlight application

Load DLL-loads the specified DLL file, invokes the method in it, or loads the control in it

AppManifest.xaml File Description-Brief description of the role of each node in the AppManifest.xaml file content

Custom mouse pointer-implements a custom mouse pointer, that is, the mouse follows

Online Demo

Http://www.cnblogs.com/webabcd/archive/2008/10/09/1307486.html

Example

1. Load the specified XAP file in the Silverlight program

Loadxap.xaml

<UserControl x:Class="Silverlight20.Tip.LoadXap"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.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>

LoadXap.xaml.cs

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 ()
{
InitializeComponent ();
}

private void Load_click (object sender, RoutedEventArgs e)
{
Uri uri = new Uri ("Yytetris.xap", urikind.relative);

Download the specified XAP with WebClient
WebClient client = new WebClient ();
Client. openreadcompleted + = new Openreadcompletedeventhandler (client_openreadcompleted);
Client. OpenReadAsync (URI);
}

void Client_openreadcompleted (object sender, Openreadcompletedeventargs e)
{
/**//*
* StreamResourceInfo-provides support for retrieving resources through the Silverlight application model
* Assemblypart-assemblies contained within the Silverlight program
* Assemblypart.load ()-loads the specified assembly into the current application domain
* Application.getresourcestream ()-Automatic decompression of zip-type files
*/

YYTETRIS.XAP's AppManifest.xaml information is as follows
/**//*
<deployment xmlns= "http://schemas.microsoft.com/client/2007/deployment" xmlns:x= "http://schemas.microsoft.com /winfx/2006/xaml "entrypointassembly=" Yytetris "entrypointtype=" Yytetris.app "runtimeversion=" 2.0.31005.0 ">
<Deployment.Parts>
<assemblypart x:name= "Yytetris" source= "YYTetris.dll"/>
</Deployment.Parts>
</Deployment>
*/

Obtains all Assemblypart node information within deployment.parts in the AppManifest.xaml of XAP
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)
{
Remove the DLL specified by the Assemblypart Source
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);
}

Instantiating a yytetris.xap main function
var type = assembly. GetType ("Yytetris.page");
var Yytetris = activator.createinstance (type) as UIElement;

Add YYTETRIS.XAP to the specified container and update the UI
Container. Children.add (Yytetris);
Container. Updatelayout ();
}
}
}