ConfigurationManager.RefreshSection(String) Methode

Definition

Namespace:

System.Configuration

Assembly:

System.Configuration.ConfigurationManager.dll

Paket:

System.Configuration.ConfigurationManager v8.0.0

Quelle:

ConfigurationManager.cs

Aktualisiert den benannten Abschnitt. Dadurch wird er beim nächsten Abrufen erneut vom Datenträger gelesen.

public:
 static void RefreshSection(System::String ^ sectionName);

public static void RefreshSection (string sectionName);

static member RefreshSection : string -> unit

Public Shared Sub RefreshSection (sectionName As String)

Parameter

sectionName

String

Der Konfigurationsabschnittsname oder der Konfigurationspfad und der Abschnittsname des zu aktualisierenden Abschnitts.

Beispiele

Im folgenden Codebeispiel wird gezeigt, wie Sie die RefreshSection -Methode verwenden, um den Konfigurationsabschnitt der Anwendungseinstellungen zu aktualisieren.

// Create the AppSettings section.
// The function uses the GetSection(string)method 
// to access the configuration section. 
// It also adds a new element to the section collection.
public static void CreateAppSettings()
{
  // Get the application configuration file.
  System.Configuration.Configuration config =
    ConfigurationManager.OpenExeConfiguration(
          ConfigurationUserLevel.None);

  string sectionName = "appSettings";

  // Add an entry to appSettings.
  int appStgCnt =
      ConfigurationManager.AppSettings.Count;
  string newKey = "NewKey" + appStgCnt.ToString();

  string newValue = DateTime.Now.ToLongDateString() + 
    " " + DateTime.Now.ToLongTimeString();

  config.AppSettings.Settings.Add(newKey, newValue);

  // Save the configuration file.
  config.Save(ConfigurationSaveMode.Modified);
  
  // Force a reload of the changed section. This 
  // makes the new values available for reading.
  ConfigurationManager.RefreshSection(sectionName);

  // Get the AppSettings section.
  AppSettingsSection appSettingSection =
    (AppSettingsSection)config.GetSection(sectionName);

  Console.WriteLine();
  Console.WriteLine("Using GetSection(string).");
  Console.WriteLine("AppSettings section:");
  Console.WriteLine(
    appSettingSection.SectionInformation.GetRawXml());
}

' Create the AppSettings section.
' The function uses the GetSection(string)method 
' to access the configuration section. 
' It also adds a new element to the section collection.
Public Shared Sub CreateAppSettings()
    ' Get the application configuration file.
    Dim config As System.Configuration.Configuration = _
    ConfigurationManager.OpenExeConfiguration( _
        ConfigurationUserLevel.None)

    Dim sectionName As String = "appSettings"

    ' Add an entry to appSettings.
    Dim appStgCnt As Integer = _
        ConfigurationManager.AppSettings.Count
    Dim newKey As String = _
        "NewKey" + appStgCnt.ToString()

    Dim newValue As String = _
        DateTime.Now.ToLongDateString() + " " + _
        DateTime.Now.ToLongTimeString()

    config.AppSettings.Settings.Add(newKey, _
                                    newValue)

    ' Save the configuration file.
    config.Save(ConfigurationSaveMode.Modified)

    ' Force a reload of the changed section. This 
    ' makes the new values available for reading.
    ConfigurationManager.RefreshSection(sectionName)

    ' Get the AppSettings section.
    Dim appSettingSection As AppSettingsSection = _
        DirectCast(config.GetSection(sectionName),  _
        AppSettingsSection)

    Console.WriteLine()
    Console.WriteLine( _
        "Using GetSection(string).")
    Console.WriteLine( _
        "AppSettings section:")
    Console.WriteLine( _
        appSettingSection.SectionInformation.GetRawXml())
End Sub

Hinweise

Mit dieser Methode wird der Cache für den angegebenen Konfigurationsabschnitt ungültig, ohne dass sich dies auf andere Abschnitte auswirkt.

Weitere Informationen

• GetSection(String)