From: 011netservice@gmail.com
Date: 2023-02-05
Subject: Readme-AspNet.txt

歡迎來信交流, 訂購軟體需求.

#### 2023-01-27 取得 ASP.NET Web 的編譯暫存目錄位置.
// 取得 ASP.NET Web 的編譯暫存目錄位置.
// Gets the physical path to the directory where ASP.NET stores temporary files (generated sources, compiled assemblies, and so on) for the current application.
// e.g., C:\Users\[username]\AppData\Local\Temp\Temporary ASP.NET Files\vs\c49b282f\17bcb262
return HttpRuntime.CodegenDir;

#### 2022-05-30 清除 Visual Studio 網站專案 Cached Temporary ASP.NET Files.
Clear Cache for Temporary ASP.NET Files
碰到 網站怪異的情況時, 先把 Cache 清掉後再重新啟動 Visual Studio, 多半可解決:

ASP.NET:
C:\Users\[yourname]\AppData\Local\Temp\Temporary ASP.NET Files\, 刪掉這一層的( root 跟 vs 2個檔案夾)比較快!
若不能刪除, 則通常是 IIS Express 或是 Visual Studio 仍鎖住檔案開啟中, 只要結束 IIS Express 或是 Visual Studio 直行即可避開.
刪除後, 若重新執行 IIS Express 或是 Visual Studio 網站專案後, 則會自動建立 ( root 跟 vs 2個檔案夾).

C:\Users\[yourname]\AppData\Local\Temp\Temporary ASP.NET Files\root
C:\Users\[yourname]\AppData\Local\Temp\Temporary ASP.NET Files\vs
C:\Users\[yourname]\AppData\Local\Temp\Temporary ASP.NET Files\root\23f0790b\8c49ea6f\assembly\dl3\cc9baf6c\3e830111_b5d1d401\LibSQL.dll

Q: root 跟 vs 的差別 ? 
A: 分別是 IIS Express 或是 Visual Studio 開啟的.

visual studio 2019:
C:\Users\[yourname]\AppData\Local\Microsoft\VisualStudio\16.0_1bb3238e

怪異的情況, 例如:
  .aspx 中 <% 變數名稱 %> 明明存在, 卻顯示 The name '變數名稱' does not exist in the current context.

清除 cache:
C:\Users\[yourname]\AppData\Roaming\Microsoft\VisualStudio\14.0
C:\Users\[yourname]\AppData\Local\Microsoft\VisualStudio\14.0
ASP.NET:
C:\Users\[yourname]\AppData\Local\Temp\Temporary ASP.NET Files\root\23f0790b\8c49ea6f\assembly\dl3\cc9baf6c\3e830111_b5d1d401\LibSQL.dll

cmd 變數:
%APPDATA% = C:\Users\[yourname]\AppData\Roaming
%userprofile% = C:\Users\[yourname]\
%localappdata%\Microsoft\VisualStudio\14.0\ComponentModelCache. 

或使用以下工具清除:
Clear_MEF_Component_Cache_v1.4.31.vsix, 支援 vs2022.
Clear_MEF_Component_Cache_v1.4.29.vsix
ref:
https://marketplace.visualstudio.com/items?itemName=MadsKristensen.ClearMEFComponentCache
安裝後, 在 Visual studio.Tools.
可以找到新安裝的選項: Clear MEF Component Cache...

1. Close all instances of VS
2. delete everything in this 2 folders as below cache:
C:\Users\<your users name>\AppData\Local\Microsoft\VisualStudio\14.0 
C:\Users\<your users name>\AppData\Roaming\Microsoft\VisualStudio\14.0
ASP.NET:
C:\Users\[yourname]\AppData\Local\Temp\Temporary ASP.NET Files\root\23f0790b\8c49ea6f\assembly\dl3\cc9baf6c\3e830111_b5d1d401\LibSQL.dll

3. Restart Visual Studio 

#### 20210826
<asp:TextBox ID="txtInput" runat="server" TextMode="MultiLine" class="col-10 form-control" ClientIDMode="Static" ValidateRequestMode="Disabled"></asp:TextBox>
byte[] baInput = System.Text.Encoding.UTF8.GetBytes(txtInput.Text);


#### 20210826 ValidateRequestMode.
關閉資料驗証功能的 TextBox 控制項範例：
<asp:TextBox ID="TextBox1" runat="server" TextMode="MultiLine" ValidateRequestMode="Disable"/>

全文參考: ValidateRequestMode.txt