使用POCO模板获取Entity Framework的连接字符串

  <add name="MyDatabase" connectionString="Data Source=myserver;Initial Catalog=mydatabase;User ID=myusername;Password=mypassword" providerName="System.Data.SqlClient" />
</connectionStrings>

Data Source=myserver;Initial Catalog=mydatabase;User ID=myusername;Password=mypassword

var connectionString = "Data Source=myserver;Initial Catalog=mydatabase;User ID=myusername;Password=mypassword";
var objectContext = new ObjectContext(connectionString);