ConfigurationManager.RefreshSection(String) Method

Definition

Namespace:

System.Configuration

Assembly:

System.Configuration.ConfigurationManager.dll

Source:

ConfigurationManager.cs

Refreshes the named section so the next time that it is retrieved it will be re-read from disk.

C#

public static void RefreshSection(string sectionName);

Parameters

sectionName

String

The configuration section name or the configuration path and section name of the section to refresh.

Examples

The following code example shows how to use the RefreshSection method to refresh the application settings configuration section.

C#

// 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());
}

Remarks

This method invalidates the cache for the specified configuration section without affecting other sections.

Applies to

See also

• GetSection(String)