ApplicationSettingsBase.OnSettingChanging 方法

定義

命名空間:

System.Configuration

組件:

System.Configuration.ConfigurationManager.dll

套件:

System.Configuration.ConfigurationManager v8.0.0

來源:

ApplicationSettingsBase.cs

引發 SettingChanging 事件。

protected:
 virtual void OnSettingChanging(System::Object ^ sender, System::Configuration::SettingChangingEventArgs ^ e);

protected virtual void OnSettingChanging (object sender, System.Configuration.SettingChangingEventArgs e);

abstract member OnSettingChanging : obj * System.Configuration.SettingChangingEventArgs -> unit
override this.OnSettingChanging : obj * System.Configuration.SettingChangingEventArgs -> unit

Protected Overridable Sub OnSettingChanging (sender As Object, e As SettingChangingEventArgs)

參數

sender

Object

事件的來源。

e

SettingChangingEventArgs

SettingChangingEventArgs，其中包含事件資料。

備註

引發事件會透過委派叫用此事件處理常式。 如需詳細資訊，請參閱 處理和引發事件。

OnSettingChanging 方法也允許衍生類別處理事件，而不用附加委派。 這是在衍生類別中處理事件的慣用技巧。

給繼承者的注意事項

當在衍生類別中覆寫 OnSettingChanging(Object, SettingChangingEventArgs) 時，請確定呼叫基底類別的 OnSettingChanging(Object, SettingChangingEventArgs) 方法，使已註冊的委派能接收到事件。

另請參閱

• SettingChanging
• OnSettingsLoaded(Object, SettingsLoadedEventArgs)
• OnSettingsSaving(Object, CancelEventArgs)