.net 3.5 : To read connectionstring from app. 配置？

Question

如何使用.net api从app.config文件中读取连接字符串信息？

平台是.net 3.5

     <?xml version="1.0" encoding="utf-8" ?>
        <configuration>
            <connectionStrings>
                 <add connectionString="" providerName="" name=""/>
            </connectionStrings>
        </configuration> 

Answer 1

请参阅Reading Connection Strings in Web.Config and App.Config and Enterprise Library DAAB Settings (在 Wayback Machine 上，原件已被删除)

ConnectionStringSettings connection = ConfigurationManager.ConnectionStrings["MyConnectionString"]
string connectionString = connection.ConnectionString

您可能需要添加对System.Configuration的程序集引用