WebConfigurationManager.AppSettings 属性

定义

命名空间:

System.Web.Configuration

程序集:

System.Web.dll

获取该网站的应用程序设置。

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

public static System.Collections.Specialized.NameValueCollection AppSettings { get; }

static member AppSettings : System.Collections.Specialized.NameValueCollection

Public Shared ReadOnly Property AppSettings As NameValueCollection

属性值

NameValueCollection

一个 NameValueCollection 对象，它包含当前 Web 应用程序的默认配置的 AppSettingsSection 对象。

例外

ConfigurationErrorsException

未能使用该应用程序设置数据检索到有效的 NameValueCollection 对象。

示例

以下示例演示如何使用 AppSettings 方法访问配置信息。

// Show the use of the AppSettings property
// to get the application settings.
static void GetAppSettings()
{

    // Get the appSettings key,value pairs collection.
    NameValueCollection appSettings =
        WebConfigurationManager.AppSettings
        as NameValueCollection;

    // Get the collection enumerator.
    IEnumerator appSettingsEnum =
        appSettings.GetEnumerator();

    // Loop through the collection and
    // display the appSettings key, value pairs.
    int i = 0;
    Console.WriteLine("[Display appSettings]");
    while (appSettingsEnum.MoveNext())
    {
        string key = appSettings.AllKeys[i].ToString();
        Console.WriteLine("Key: {0} Value: {1}",
        key, appSettings[key]);
        i += 1;
    }

    Console.WriteLine();
}

' Show the use of AppSettings property
' to get the application settings.
Shared Sub GetAppSettings()
   
   ' Get the appSettings key,value pairs collection.
     Dim appSettings As NameValueCollection = _
     WebConfigurationManager.AppSettings
   
   ' Get the collection enumerator.
     Dim appSettingsEnum As IEnumerator = _
     appSettings.GetEnumerator()
   
   ' Loop through the collection and 
   ' display the appSettings key, value pairs.
   Dim i As Integer = 0
   Console.WriteLine("[Display appSettings]")
   While appSettingsEnum.MoveNext()
      Dim key As String = appSettings.AllKeys(i)
         Console.WriteLine("Key: {0} Value: {1}", _
         key, appSettings(key))
      i += 1
   End While
   
   Console.WriteLine()
End Sub

注解

对象 AppSettingsSection 包含配置文件的 <appSettings> 节。

另请参阅

• AppSettingsSection
• NameValueCollection