在global.asax中注册.json路由

Question

是否可以在Global.asax中注册.json格式？

<%@ Application Language="VB" %>
<%@ Import Namespace="System.Web.Routing" %>
<%@ Import Namespace="System.Web.DynamicData" %>
<script runat="server">
     Sub Application_Start(ByVal sender As Object, ByVal e As EventArgs)
         RegisterRoutes(RouteTable.Routes)
     End Sub

     Shared Sub RegisterRoutes(routes As RouteCollection)

         routes.MapPageRoute("", "Data.json", "~/Data.aspx")

     End Sub
</script>

我尝试使用上面的代码，但没有用。