ASP.NET 在處理 HTTP POST 要求時最多只能接受 1,000 個參數，一般來說不會有人透過 POST 傳遞表單資料超過 1,000 個欄位 ( 以筆者的經驗來說，傳過最多的一次是 700 個欄位，當時是個問卷系統 )，如果傳數參數超過 1,000 筆的話，就會出現 Operation is not valid due to the current state of the object. (英文) 或 由於該物件目前的狀態，導致作業無效。 (中文) 例外狀況，細部的例外訊息會有 HttpException (0x80004005): The URL-encoded form data is not valid. (英文) 或 HttpException (0x80004005): URL 編碼型式資料無效。
參考：http://blog.miniasp.com/post/2012/01/01/Efficient-Denial-of-Service-Attacks-on-Web-Application-Platforms.aspx
解：
web.config加下面這個設定
<appSettings>
<add key="aspnet:MaxHttpCollectionKeys" value="5000" />
</appSettings>
在 C:\Windows\Microsoft.NET\Framework64\v2.0.50727\Aspnet.config 之下, 可以設定
<system.web> <applicationPool maxConcurrentRequestsPerCPU="12" maxConcurrentThreadsPerCPU="0" requestQueueLimit="5000"/></system.web>
另外，在 registry 中，可以設定 HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\ASP.NET\2.0.50727.0\MaxConcurrentRequestsPerCPU
參考:
http://blogs.msdn.com/b/tmarq/archive/2007/07/21/asp-net-thread-usage-on-iis-7-0-and-6-0.aspxHttpApplication Events:
Application_AcquireRequestState
Occurs when ASP.NET acquires the current state (for example, session state) that is associated with the current request.
Application_AuthenticateRequest
Occurs when a security module has established the identity of the user.
Application_AuthorizeRequest
Occurs when a security module has verified user authorization.
Application_BeginRequest
Occurs as the first event in the HTTP pipeline chain of execution when ASP.NET responds to a request.
Application_Disposed
Adds an event handler to listen to the Disposed event on the application.
Application_EndRequest
Occurs as the last event in the HTTP pipeline chain of execution when ASP.NET responds to a request.
Application_Error
Occurs when an unhandled exception is thrown.
Application_PostAcquireRequestState
Occurs when the request state (for example, session state) that is associated with the current request has been obtained.
Application_PostAuthenticateRequest
Occurs when a security module has established the identity of the user.
Application_PostAuthorizeRequest
Occurs when the user for the current request has been authorized.
Application_PostMapRequestHandler
Occurs when ASP.NET has mapped the current request to the appropriate event handler.
Application_PostReleaseRequestState
Occurs when ASP.NET has completed executing all request event handlers and the request state data has been stored.
Application_PostRequestHandlerExecute
Occurs when the ASP.NET event handler (for example, a page or an XML Web service) finishes execution.
Application_PostResolveRequestCache
Occurs when ASP.NET bypasses execution of the current event handler and allows a caching module to serve a request from the cache.
Application_PostUpdateRequestCache
Occurs when ASP.NET completes updating caching modules and storing responses that are used to serve subsequent requests from the cache.
Application_PreRequestHandlerExecute
Occurs just before ASP.NET begins executing an event handler (for example, a page or an XML Web service).
Application_PreSendRequestContent
Occurs just before ASP.NET sends content to the client.
Application_PreSendRequestHeaders
Occurs just before ASP.NET sends HTTP headers to the client.
Application_ReleaseRequestState
Occurs after ASP.NET finishes executing all request event handlers. This event causes state modules to save the current state data.
Application_ResolveRequestCache
Occurs when ASP.NET completes an authorization event to let the caching modules serve requests from the cache, bypassing execution of the event handler (for example, a page or an XML Web service).
Application_UpdateRequestCache
Occurs when ASP.NET finishes executing an event handler in order to let caching modules store responses that will be used to serve subsequent requests from the cache.
Application_Init
This method occurs after _start and is used for initializing code.
Application_Start
As with traditional ASP, used to set up an application environment and only called when the application first starts.
Application_End
Again, like classic ASP, used to clean up variables and memory when an application ends.
Session Events:
Session_Start
As with classic ASP, this event is triggered when any new user accesses the web site.
Session_End
As with classic ASP, this event is triggered when a user's session times out or ends. Note this can be 20 mins (the default session timeout value) after the user actually leaves the site.
Profile Events:
Profile_MigrateAnonymous
Occurs when the anonymous user for a profile logs in.
Passport Events:
PassportAuthentication_OnAuthenticate
Raised during authentication. This is a Global.asax event that must be named PassportAuthentication_OnAuthenticate.
Possibly more events defined in other HttpModules like:
System.Web.Caching.OutputCacheModule
System.Web.SessionState.SessionStateModule
System.Web.Security.WindowsAuthentication
System.Web.Security.FormsAuthenticationModule
System.Web.Security.PassportAuthenticationModule
System.Web.Security.UrlAuthorizationModule
System.Web.Security.FileAuthorizationModule
System.Web.Profile.ProfileModule
我在 UW 4.0 附上之前做的翻譯物件，使用方法在附檔裡
基本上是把拆解網頁文字翻譯內容放在xml文字檔裡面
這是以一般ASP.NET開發方式用Server Control來處理
用 AutoTranlate 可以很快取代所有文字，不用一個一個取代
但是遇到我們Template物件，就不能用啦
這部分我再調一下，讓 Template物件也能夠 AutoTranlate
我是用此工具轉
http://www.developerfusion.com/tools/convert/vb-to-csharp/
轉換後，放到visual studio還是有很多毛毛蟲
整理一些問題, 希望能減少轉換上的困難
另外所有的 server control 的 On Event 所執行的function name (例如 Button 的 OnClick) 都要在 aspx 裡面設定
(這部分會在後台程式發生，因為轉換後常忘了加)
9. vbCrLf -> "\r\n"
vbTab -> "\t"
10. VB function 轉換
Conversion.Fix -> Math.Floor
Strings.Format(x, "###0.0") -> 用 x.ToString("N1");
11. EN 處理要多加注意，需額外加 (int) 才會顯示數值，很多 sql 指令這樣拼要小心
" where EN_產品性質 = " + SHOPUNT.EN.產品性質.非成品 ; -> where EN_產品性質 = 非成品 (會出錯)
" where EN_產品性質 = " + (int)SHOPUNT.EN.產品性質.非成品; -> where EN_產品性質 = 100
先整理這些 以後遇到再加上
結果B網站的Cookies卻一直無法寫入，最常顯示的狀況是session無效
如果發生這樣的狀況 請記得在 IIS 設定 http header, "P3P"
詳細參考 http://adamyoung.net/IE-Blocking-iFrame-Cookies
也可以參考 w3c P3P
EX.
#region Configure for Content Provider =>區塊說明，在程式裡不會work
//Settings for Cotent Provider (for Alpha Enviroment)
string szCID = xmlDoc.DocumentElement["CID"].InnerText;
string szKey = "z1okwCmRSkgk/vkWzxIuwQNuUvf9d8gj";
string szIV = "dg454KArm6g=";
string szPassword = "1234";
#endregion
2：安裝好 .NET 4 後還是找不到設定網站站台的 ASP.NET 頁籤 的 ASP.NET 4.0 的選項
3：安裝好 .NET 4 也設定好網站站台的 ASP.NET 4.0 的選項 依然無法執行網站
4：ASP.NET 4.0 的網站站台已經設定好也可以正常執行了， 但執行一段時間會自己掛掉！
http://www.microsoft.com/taiwan/technet/iis/learn/aspnet4_install_iis6_qa.aspx