ConfigurationManager.AppSettings 屬性 —轉

ConfigurationManager.AppSettings 屬性 

注意：此屬性在 .NET Framework 2.0 版中是新增的。

命名空間:System.Configuration
程式集:System.Configuration（在 system.configuration.dll 中）

文法Visual Basic（聲明）

Public Shared ReadOnly Property AppSettings As NameValueCollection

Visual Basic（用法）

Dim value As NameValueCollectionvalue = ConfigurationManager.AppSettings

C#

public static NameValueCollection AppSettings { get; }

C++

public:static property NameValueCollection^ AppSettings {    NameValueCollection^ get ();}

J#

/** @property */public static NameValueCollection get_AppSettings ()

JScript

public static function get AppSettings () : NameValueCollection

 

 

屬性值

返回一個 NameValueCollection 對象，該對象包含當前應用程式預設配置的 AppSettingsSection 對象的內容。 異常

異常類型	條件
ConfigurationErrorsException	無法使用應用程式設定資料檢索 NameValueCollection 對象。

備忘

AppSettingsSection 對象包含設定檔的 appSettings 節的內容。

樣本

下面的程式碼範例示範如何使用 AppSettings 屬性擷取命名的應用程式設定。

Visual Basic

' Get appSettings.Shared Sub GetAppSettings()   ' Get the appSettings.     Dim appSettings As NameValueCollection = _     ConfigurationManager.AppSettings      ' Get the collection enumerator.     Dim appSettingsEnum As IEnumerator = _     appSettings.Keys.GetEnumerator()      ' Loop through the collection and   ' display the appSettings key, value pairs.   Dim i As Integer = 0   While appSettingsEnum.MoveNext()      Dim key As String = appSettings.Keys(i)         Console.WriteLine("Name: {0} Value: {1}", _         key, appSettings(key))      i += 1   End WhileEnd Sub 'GetAppSettings 

C#

// Get appSettings.static void GetAppSettings(){    // Get the appSettings.    NameValueCollection appSettings =         ConfigurationManager.AppSettings;        // Get the collection enumerator.    IEnumerator appSettingsEnum =        appSettings.Keys.GetEnumerator();    // Loop through the collection and    // display the appSettings key, value pairs.    int i = 0;    Console.WriteLine("App settings.");    while (appSettingsEnum.MoveNext())    {        string key = appSettings.Keys[i];        Console.WriteLine("Name: {0} Value: {1}",        key, appSettings[key]);        i += 1;    }}