.NET Framework Class Library
Form..::.Closed Event

Occurs when the form is closed.

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

Visual Basic (Declaration)
<BrowsableAttribute(False)> _
Public Event Closed As EventHandler
Visual Basic (Usage)
Dim instance As Form
Dim handler As EventHandler

AddHandler instance.Closed, handler
C#
[BrowsableAttribute(false)]
public event EventHandler Closed
Visual C++
[BrowsableAttribute(false)]
public:
 event EventHandler^ Closed {
    void add (EventHandler^ value);
    void remove (EventHandler^ value);
}
JScript
JScript does not support events.
Remarks

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The Closed event is obsolete in the .NET Framework version 2.0; use the FormClosed event instead.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

Examples

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.

Visual Basic
Shared x As Integer = 200
Shared y As Integer = 200

Private Sub Button1_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button1.Click

    ' Create a new Form1 and set its Visible property to true.
    Dim form2 As 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.
    Me.Activate()
    Me.Button1.Enabled = False
End Sub



' 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 Sub Form1_Activated(ByVal sender As Object, _
    ByVal e As System.EventArgs) Handles MyBase.Activated
    Label1.Text = "x: " & x & " y: " & y
    Label2.Text = "Number of forms currently open: " & count
End Sub

Shared count As Integer = 0

Private Sub Form1_Closed(ByVal sender As Object, _
    ByVal e As System.EventArgs) Handles MyBase.Closed
    count -= 1
End Sub

Private Sub Form1_Load(ByVal sender As Object, _
    ByVal e As System.EventArgs) Handles MyBase.Load
    count += 1
End Sub
C#
    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.Activate();
        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;
    }
Visual C++
static int x = 200;
static int y = 200;
void Button1_Click( System::Object^ sender, System::EventArgs^ e )
{

   // Create a new Form1 and set its Visible property to true.
   Form1^ form2 = gcnew 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->Activate();
   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.
void Form1_Activated( Object^ sender, System::EventArgs^ e )
{
   Label1->Text = String::Format( "x: {0} y: {1}", x, y );
   Label2->Text = String::Format( "Number of forms currently open: {0}", count );
}

static int count = 0;
void Form1_Closed( Object^ sender, System::EventArgs^ e )
{
   count -= 1;
}

void Form1_Load( Object^ sender, System::EventArgs^ e )
{
   count += 1;
}
Platforms

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.
Version Information

.NET Framework

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

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0
See Also

Reference

Other Resources

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