[英]How to read multiple values in C# app.config file?
我想閱讀以下app.config文件..如何閱讀? 我需要更改任何內容才能讀取文件嗎?
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<Users>
<add username = "Dinesh" password ="Password" domain ="MyCompany" />
<add username = "Kumar" password ="Password" domain ="MyCompany" />
</Users>
</configuration>
我認為你應該實現一個部分。
我制作了一些可能正是您想要的示例代碼:
using System.Collections.Generic;
using System.Configuration;
using System.Linq;
namespace ConsoleApplication1
{
public sealed class UsersConfigMapSection : ConfigurationSection
{
private static UsersConfigMapSection config = ConfigurationManager.GetSection("Users") as UsersConfigMapSection;
public static UsersConfigMapSection Config
{
get
{
return config;
}
}
[ConfigurationProperty("", IsRequired = true, IsDefaultCollection = true)]
private UsersConfigMapConfigElements Settings
{
get { return (UsersConfigMapConfigElements)this[""]; }
set { this[""] = value; }
}
public IEnumerable<UsersConfigMapConfigElement> SettingsList
{
get { return this.Settings.Cast<UsersConfigMapConfigElement>(); }
}
}
public sealed class UsersConfigMapConfigElements : ConfigurationElementCollection
{
protected override ConfigurationElement CreateNewElement()
{
return new UsersConfigMapConfigElement();
}
protected override object GetElementKey(ConfigurationElement element)
{
return ((UsersConfigMapConfigElement)element).Username;
}
}
public sealed class UsersConfigMapConfigElement : ConfigurationElement
{
[ConfigurationProperty("username", IsKey = true, IsRequired = true)]
public string Username
{
get { return (string)base["username"]; }
set { base["username"] = value; }
}
[ConfigurationProperty("password", IsRequired = true)]
public string Password
{
get { return (string)base["password"]; }
set { base["password"] = value; }
}
[ConfigurationProperty("domain", IsRequired = true)]
public string Domain
{
get { return (string)base["domain"]; }
set { base["domain"] = value; }
}
}
}
然后從配置文件中提取用戶,如下所示:
var users = UsersConfigMapSection.Config.SettingsList.ToList();
最后你的配置文件應如下所示:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<configSections>
<section name="Users" type="ConsoleApplication1.UsersConfigMapSection, ConsoleApplication1"/>
</configSections>
<Users>
<add username = "Dinesh" password ="Password" domain ="MyCompany" />
<add username = "Kumar" password ="Password" domain ="MyCompany" />
</Users>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
</startup>
</configuration>
或者您可以使用此解決方法來實現相同的...
<add key="username" value="A,B,C"/>
And
string[] mykey = ConfigurationManager.AppSettings["username"].Split(',');
首先,您需要將您的值放在<appSettings>
然后像這樣將鍵添加到您想要的字段
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appSettings>
<add key="username" value="Dinesh" />
<appSettings>
</configuration>
然后,您需要在references文件夾中添加對System.Configuration
的引用。
現在閱讀你的價值......
String Version = ConfigurationManager.AppSettings["username"];
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