Question

当我刚刚有一个 app. config 时, 每次我尝试配置管理器. appSettings [0] 或配置管理器. appSettings [“键名”] 我都有空。所以我尝试使用一个. sections 文件, 该文件创建了一个 ap. config, 看起来像这个。

<configuration>
  <configSections>
    <sectionGroup name="applicationSettings" type="System.Configuration.ApplicationSettingsGroup, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
      <section name="IndexLoader.IndexLoader" type="System.Configuration.ClientSettingsSection, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
    </sectionGroup>
  </configSections>
  <applicationSettings>
    <IndexLoader.IndexLoader>
      <setting name="ConnectionString" serializeAs="String">
        <value>INITIAL CATALOG=xxx;DATA SOURCE=xxx;User ID=xxx;Password=xxx;Application Name=xxx;</value>
      </setting>
    </IndexLoader.IndexLoader>
  </applicationSettings>
</configuration>

我该如何使用 C # 读取连接字符串?

解决方案有多个工程, 其中许多有配置文件。是否有方法可以指定我要使用代码工程中的配置文件?

Answer 1

applicationSettings is not appSettings. To read an entry in applicationSettings you use

string myCnStr = Properties.Settings.Default.ConnectionString;

狦穦

string myCnStr =IndexLoader.IndexLoader.Default.ConnectionString;

However the ConnectionString has a dedicated section in the app.config and should be stored there and read from the ConfigurationManager.ConnectionStrings collection

http://msdn.microsoft.com/en-us/library/ms254494.aspx" rel=“nofollow'>见此查询

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