System.Windows.Forms.CloseReason Enumeration

Specifies the reason that a form was closed.

Syntax

public enum CloseReason

Remarks

The Form.FormClosing and Form.FormClosed events are raised when a System.Windows.Forms.Form is closed, either through user action or programmatically. Handlers for these events receive parameters of type System.Windows.Forms.FormClosingEventArgs and System.Windows.Forms.FormClosedEventArgs, respectively. Both of these event argument classes use the System.Windows.Forms.CloseReason enumeration.

Members

Member NameDescription
ApplicationExitCall

The Application.Exit method of the System.Windows.Forms.Application class was invoked.

FormOwnerClosing

The owner form is closing.

MdiFormClosing

The parent form of this multiple document interface (MDI) form is closing.

None

The cause of the closure was not defined or could not be determined.

TaskManagerClosing

The Microsoft Windows Task Manager is closing the application.

UserClosing

The user is closing the form through the user interface (UI), for example by clicking the Close button on the form window, selecting Close from the window's control menu, or pressing ALT+F4.

WindowsShutDown

The operating system is closing all applications before shutting down.

Requirements

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in System.Windows.Forms.dll)
Assembly Versions: 2.0.0.0
Since: .NET 2.0