ASP.NET AJAX中出现“Type”未定义，“Sys”未定义的解决办法

      分别在Web.config配置文件的<httpHandlers></httpHandlers>和<handlers></handlers>节中添加以下两行：

      <add verb="GET" path="ScriptResource.axd" type="Microsoft.Web.Handlers.ScriptResourceHandler" validate="false"/>

      <add verb="GET" path="ScriptResource.axd" type="Microsoft.Web.Handlers.ScriptResourceHandler" validate="false"/>