還是編碼，最近老和編碼打交道-_-: 關於ASP頁面 post 資料到ASP.NET頁面的問題

從asp頁面到asp.net頁面post資料，編碼會有什麼影響？
在一個bbs上和人聊到了這個東西，雖然很簡單，但我覺得應該還是有很多人沒有注意到的問題，就貼出來參考一下，在HTML頁面上post應該也是這樣的。

Yovav : do U think it's possible that codepage is "lost" when POSTing data from ASP to an ASP.NET page ?

Samuel:  To your question "do U think it's possible that codepage is "lost" when POSTing data from ASP to an ASP.NET page ? ", I think it's not possible ---
It's really truth .

  When posting data from ASP to ASP.NET page, the codepage will automatically be changed into UTF-8.

  Therefor, you'd better set your ASP.NET page's codepage/charset correctly.

Yovav : How can I traslate this to ASP.NET (or at least define the CodePage) ?

<%@CODEPAGE="1252"%>

<%
Session.CodePage=1252 ' IMPORTANT: syncronize with the server code page
Response.Charset= "utf-8" ' IMPORTANT: make the server respond with correct charset
%>

Thanks again.
My form is now POSTing correctly - thanks to you

Samuel: From your code, I found that you want dynamic codepage/charset for response. Is it?

For dynamic response in ASP.NET, put the follow code in Page_Load() event of .cs/.vb file :

Session.CodePage=1252
Response.Charset="utf-8";

For static response, modify .aspx file like this:

<%@ Page language="c#" Codebehind="AspNetPage1.aspx.cs" AutoEventWireup="false" 
Inherits="AspPostToAsp.Net.WebForm1" codePage="1252"%>
...
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">

If you used Session and Response Object to set codepage/charset, the defined value in .aspx file will be invalid.

It seems that codepage of UTF-8 is 65001 against 1252 in ASP.NET.

Yovav : I thought I should do it like this,

so the only solution for me is to use your great two conversion functions

great job ! - I'm sure that a lot of people don't have a clue how to deal with this problem...