mvc 扩展htmlhelper

using System.Web.Mvc;

namespace System.Web.Mvc
{
public static class HtmlExtend
{
public static string IsDelete(this HtmlHelper helper, int? txt)
{
switch (txt)
{
case 0: { return "可用"; }
case 1: { return "不可用"; }
default:
return "未知";
}
}
}
}