This documentation is archived and is not being maintained.

Form.Closed Event

Occurs when the form is closed.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

public event EventHandler Closed

Caution noteCaution

The Closed event is obsolete in the .NET Framework version 2.0; use the FormClosed event instead.

This event occurs after the form has been closed by the user or by the Close method of the form. To prevent a form from closing, handle the Closing event and set the Cancel property of the CancelEventArgs passed to your event handler to true.

You can use this event to perform tasks such as freeing resources used by the form and to save information entered in the form or to update its parent form.

Caution noteCaution

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.

If the form is an MDI parent form, the Closing events of all MDI child forms are raised before the MDI parent form's Closing event is raised. In addition, the Closed events of all MDI child forms are raised before the Closed event of the MDI parent form is raised.

For more information about handling events, see Consuming Events.

The following code example demonstrates how to use the SetDesktopLocation, Closed, Load, Activated, and Activate members. To run the example, paste the following code in a form called Form1 containing a Button called Button1 and two Label controls called Label1 and Label2.

	static int x = 200;
	static int y = 200;

	private void Button1_Click(System.Object sender, 
		System.EventArgs e)
		// Create a new Form1 and set its Visible property to true.
		Form1 form2 = new Form1();
		form2.Visible = true;

		// Set the new form's desktop location so it  
		// appears below and to the right of the current form.
		form2.SetDesktopLocation(x, y);
		x += 30;
		y += 30;

		// Keep the current form active by calling the Activate
		// method.
		this.Button1.Enabled = false;

	// Updates the label text to reflect the current values of x 
	// and y, which was were incremented in the Button1 control's 
	// click event.
	private void Form1_Activated(object sender, System.EventArgs e)
		Label1.Text = "x: "+x+" y: "+y;
		Label2.Text = "Number of forms currently open: "+count;

	static int count = 0;

	private void Form1_Closed(object sender, System.EventArgs e)
		count -= 1;

	private void Form1_Load(object sender, System.EventArgs e)
		count += 1;

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.