[ASP.NET MVC] 定義自訂欄位驗證屬性並且在clinet端驗證

perform the client side validation for custom attribute

欄位自己驗證，不須其他欄位，看這個:

http://www.cnblogs.com/n-pei/archive/2011/01/26/1945018.html

驗證中必須含有其他欄位，很不錯的解答:

http://stackoverflow.com/questions/4747184/perform-client-side-validation-for-custom-attribute/4782235#4782235

---

這裡有從模型驗證完整介紹: http://www.cnblogs.com/n-pei/archive/2011/01/26/1945018.html