如何从app.config文件中使用.NET API读取连接字符串信息？

平台是.NET 3.5

 ＆LT; XML版本=1.0编码=UTF-8＆GT？;
        ＆lt;结构＆GT;
            ＆LT;的ConnectionStrings＆GT;
                 ＆LT;新增的connectionString =的providerName =NAME =/＆GT;
            ＆LT; /的ConnectionStrings＆GT;
        ＆LT; /结构＆gt;
 

解决方案

请参阅阅读Web.Config中和的app.config和企业库DAAB设置连接字符串（在Wayback机器作为原始删除了）

  ConnectionStringSettings连接= ConfigurationManager.ConnectionStrings [MyConnectionString]
字符串的connectionString = connection.ConnectionString
 

您可能需要添加程序集引用 System.Configuration

How to read connection string info from app.config file using .net api?

Platform is .net 3.5

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

Please see Reading Connection Strings in Web.Config and App.Config and Enterprise Library DAAB Settings (on the Wayback Machine as the original got deleted)

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

You may need to add an assembly reference to System.Configuration