Form.Closed Form.Closed Form.Closed Form.Closed Event

定義

フォームが閉じたときに発生します。Occurs when the form is closed.

public:
 event EventHandler ^ Closed;
[System.ComponentModel.Browsable(false)]
public event EventHandler Closed;
member this.Closed : EventHandler 
Public Custom Event Closed As EventHandler 
属性

次のコード例は、使用する方法を示します、 SetDesktopLocationClosedLoadActivated、およびActivateメンバー。The following code example demonstrates how to use the SetDesktopLocation, Closed, Load, Activated, and Activate members. 例を実行すると呼ばれる形式で次のコードを貼り付けますForm1を含む、Buttonと呼ばれるButton1と 2 つLabelと呼ばれるコントロールLabel1Label2します。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;
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

注釈

注意事項

Closedイベントは、.NET Framework version 2.0 では古いは使用して、FormClosedイベント代わりにします。The Closed event is obsolete in the .NET Framework version 2.0; use the FormClosed event instead.

このイベントは、ユーザーまたはフォームが閉じられた後に発生します。、Close形式のメソッド。This event occurs after the form has been closed by the user or by the Close method of the form. フォームを閉じるを防ぐために、処理、Closingイベントとセット、Cancelのプロパティ、CancelEventArgsにイベント ハンドラーに渡されるtrueします。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.

このイベントを使用してフォームによって使用されるリソースの解放などのタスクを実行して、フォームに入力された情報を保存する、またはその親フォームを更新することができます。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.

注意事項

Form.ClosedForm.Closingイベントがない場合に発生します、Application.Exitメソッドが呼び出され、アプリケーションを終了します。The Form.Closed and Form.Closing events are not raised when the Application.Exit method is called to exit your application. 呼び出す必要がありますを実行する必要があるこれらのイベントのいずれかで検証コードがある場合、Form.Closeメソッドを呼び出す前に個別にフォームを開くたびに、Exitメソッド。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.

フォームが MDI 親フォームでは、場合、 Closing MDI 親フォームの前にすべての MDI 子フォームのイベントが発生Closingイベントが発生します。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. さらに、 Closed MDI 子フォームのすべてのイベントが発生する前に、 Closed MDI 親フォームのイベントが発生します。In addition, the Closed events of all MDI child forms are raised before the Closed event of the MDI parent form is raised.

イベントの処理の詳細については、「処理とイベントの発生」を参照してください。For more information about handling events, see Handling and Raising Events.

適用対象

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