提供者選項中 'compilerVersion' 屬性的值必須是 'v4.0' 以上 (如果要針對 4.0 版以後的 .NET Framework 編譯)。若要針對 3.5 (含) 以後版本的 .NET Framework 編譯這個 Web 應用程式，請從 Web.config 檔案的 <compilation> 項目移除 'targetFramework' 屬性。

<system.codedom>

    <compilers>

     <compiler language="c#;cs;csharp" extension=".cs" type="Microsoft.CSharp.CSharpCodeProvider,System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" warningLevel="4">

        <providerOption name="CompilerVersion" value="v4.0"/>

        <providerOption name="WarnAsError" value="false"/>

     </compiler>

     <compiler language="vb;vbs;visualbasic;vbscript" extension=".vb" type="Microsoft.VisualBasic.VBCodeProvider, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" warningLevel="4">

        <providerOption name="CompilerVersion" value="v4.0"/>

        <providerOption name="OptionInfer" value="true"/>

        <providerOption name="WarnAsError" value="false"/>

     </compiler>

    </compilers>

</system.codedom>

    var Data = [{"key": "key5", "value": "value5"}, {"key": "key4", "value": "value4"}, {"key": "key3", "value": "value3"}];

    var html = [];

    html.push('<select name="test">');

    for (var i = 0; i < Data.length; i++) {

        html.push('<option value="' + Data[i]["key"] + '">',

            Data[i]["value"],

            "</option>");

    }

    html.push('</select>');

    return html.join('');

        List<string> listOfString = new List<string>();

        for (int i = 0; i < 10; i++)

        {

            listOfString.Add(i.ToString());

        }

        string strResult = string.Join(", ", listOfString.ToArray());

必備元件

Microsoft .NET Framework 3.5 Service pack 1(不裝連安裝畫面都無法開啟)
http://www.microsoft.com/downloads/details.aspx?FamilyId=AB99342F-5D1A-413D-8319-81DA479AB0D7&displaylang=zh-tw

Windows Installer 4.5 Redistributable - 繁體中文(不安裝就無法安裝SQL Server 2008)
http://www.microsoft.com/downloads/details.aspx?displaylang=zh-tw&FamilyID=5a58b56f-60b6-4412-95b9-54d056d6f9f4

PowerShell 1.0(不裝在檢查元件步驟就無法通過)
926139：Windows PowerShell 1.0 英文語言安裝封裝適用於 Windows Server 2003 及 Windows XP
926140：Windows Server 2003 Service Pack 1 與 Windows XP Service Pack 2 的 Windows PowerShell 1.0 當地語系化安裝套件
926141：Windows 1.0 PowerShell 多語系使用者語言介面 (MUI) Pack 適用於 Windows Server 2003 或適用於 Windows XP
928439：適用於 Windows Vista 的 Windows PowerShell 1.0 安裝封裝

<appSettings>

     <add key="aspnet:MaxHttpCollectionKeys" value="5000" />

</appSettings>

HttpApplication 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