VS2008 SQL連結字串更新

VS2003:
WEB.CONFIG
    <appSettings>
        <add key="SQL_ConnectionString" value="Persist Security Info=True;User ID=sa;Initial Catalog=DDD;Data Source=SSS"/>

VB
            strConStr = System.Configuration.ConfigurationSettings.AppSettings("SQL_ConnectionString").ToString()

VS2008:
WEB.CONFIG
    <connectionStrings>
        <add name="SQL_ConnectionString" connectionString="Persist Security Info=True;User ID=sa;Initial Catalog=DDD;Data Source=SSS"/>

VB
Imports System.Configuration

            strConStr = ConfigurationManager.ConnectionStrings("SQL_ConnectionString").ConnectionString