Form.Closed Événement

public:
 event EventHandler ^ Closed;

public event EventHandler Closed;

[System.ComponentModel.Browsable(false)]
public event EventHandler Closed;

[System.ComponentModel.Browsable(false)]
public event EventHandler? Closed;

member this.Closed : EventHandler 

[<System.ComponentModel.Browsable(false)>]
member this.Closed : EventHandler 

Public Custom Event Closed As EventHandler 

Type d'événement

Attributs

BrowsableAttribute

Exemples

L’exemple suivant montre comment utiliser les SetDesktopLocationmembres , Closed, Load, Activatedet Activate . Pour exécuter l’exemple, collez le code suivant dans un formulaire appelé Form1 contenant un Button appelé Button1 et deux Label contrôles appelés Label1 et Label2.

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;
}

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;
}

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

Remarques

Cet événement se produit une fois que le formulaire a été fermé par l’utilisateur ou par la Close méthode du formulaire. Pour empêcher la fermeture d’un formulaire, gérez l’événement Closing et définissez la Cancel propriété du CancelEventArgs passé à votre gestionnaire d’événements sur true.

Vous pouvez utiliser cet événement pour effectuer des tâches telles que la libération des ressources utilisées par le formulaire et pour enregistrer les informations entrées dans le formulaire ou pour mettre à jour son formulaire parent.

Si le formulaire est un formulaire parent MDI, les Closing événements de tous les formulaires enfants MDI sont déclenchés avant que l’événement du Closing formulaire parent MDI ne soit déclenché. En outre, les Closed événements de tous les formulaires enfants MDI sont déclenchés avant que l’événement Closed du formulaire parent MDI ne soit déclenché.

Pour plus d'informations sur la gestion des événements, voir gestion et déclenchement d’événements.

S’applique à

Voir aussi

• IsMdiContainer
• OnClosed(EventArgs)
• Load