Ways to use configuration files in Silverlight

Silverlight as a lite version of the . NET Framework , no corresponding support is provided for the configuration file. Can't we use System.Configuration.ConfigurationManager like we did in winForm ? to access App. configuration information in the. So a better way is to write a configuration file management class ConfigurationManager.

First, create a project in the XML file, named App. , remember to put in the project root directory, easy to set the path behind. Set the Build Action to Resourceand write somethingin App. config .

?

<? XMLVersion="1.0"Encoding="utf-8" ?>

?

<configuration>

?

<appSettings>

?

<addkey="name"Value="srzhz"/>

?

<addkey="University"value="Tsinghua University"/>

?

</appSettings>

?

</configuration>

and then you start creating this ConfigurationManager class.

First, right-click on the project ADD Reference , then select System.Xml.Linq . (Cannot introduce namespace System.Xml.Linq if not added )

and then in ConfigurationManager class, write the following code

?

Using System;

Using system.windows;

Using System.Collections.Generic;

Using System.Windows.Resources;

Using System.IO;

Using System.Xml.Linq;

Using System.Reflection;

?

namespace SilverlightApplication92

{

<summary>

?

Access appSettings from a configuration file

?

</summary>

?

<remarks>Your appConfig file must is in the root of Your applcation</remarks>

?

PublicstaticclassConfigurationManager

{

Static ConfigurationManager ()

{

AppSettings = newDictionary<string, string> ();

Readsettings ();

}

?

PublicStaticDictionary<string, string> AppSettings { get; set;}

?

Privatestaticvoid readsettings ()

{

Get the name of the executing assemby-we is going to being looking in the root folder for

A file called app. Config

String assemblyname = Assembly. GetExecutingAssembly (). FullName;

AssemblyName = assemblyname.substring (0, Assemblyname.indexof (', '));

string url = string. Format ("{0};component/app.config", AssemblyName);

StreamResourceInfo configfile = application. Getresourcestream (The new Uri(URL, urikind. Relative));

If (configfile! = null && configfile.stream! = null)

{

Stream stream = Configfile.stream;

XDocument document = XDocument. Load (stream);

foreach (XElement element in document. Descendants ("AppSettings"). Descendantnodes ())

{

Appsettings.add (element. Attribute ("key"). Value, Element. Attribute ("value"). Value);

}

}

}

}

}

You can then call this class to get the configuration information. For example:

String name = ConfigurationManager. appsettings["name"];

Ways to use configuration files in Silverlight