c#中webconfig的自定义方法

<configSections>
<section name="picLink" type="System.Configuration.NameValueSectionHandler"/>   </configSections>
<picLink>
<add key="link" value="http://www.auxun.cn/"></add>
</picLink>

using System.Configuration;
using System.Collections.Specialized;
namespace PPP.Code
{
public static class picLinkClass
{

public static string  getPiclink(){
NameValueCollection postinfo = (NameValueCollection)ConfigurationManager.GetSection("picLink");
return postinfo["link"];
}

}
}

@using PPP.Code
<img src="@picLinkClass.getPiclink()local/picfolder/no.jpg" style="height:100%">