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Form.Close Method

Closes the form.

[Visual Basic]
Public Sub Close()
public void Close();
public: void Close();
public function Close();


Exception Type Condition
InvalidOperationException The form was closed while a handle was being created.


When a form is closed, all resources created within the object are closed and the form is disposed. You can prevent the closing of a form at run time by handling the Closing event and setting the Cancel property of the CancelEventArgs passed as a parameter to your event-handling method. If the form you are closing is the startup form of your application, your application ends.

Note   When the Close method is called on a Form displayed as a modeless window, you cannot call the Show method to make the form visible, because the form's resources have already been released. To hide a form and then make it visible, use the Control.Hide method.
CAUTION   The Form.Closed and Form.Closing events are not raised when the Application.Exit method is called to exit your application. If you have validation code in either of these events that must be executed, you should call the Form.Close method for each open form individually before calling the Exit method.


Platforms: Windows 98, Windows NT 4.0, Windows Millennium Edition, Windows 2000, Windows XP Home Edition, Windows XP Professional, Windows Server 2003 family, .NET Compact Framework

See Also

Form Class | Form Members | System.Windows.Forms Namespace | Cancel | Closing