Form.Activate 메서드

아티클
08/21/2007

폼을 활성화하고 포커스를 제공합니다.

네임스페이스: System.Windows.Forms
어셈블리: System.Windows.Forms(system.windows.forms.dll)

구문

‘선언
Public Sub Activate
‘사용 방법
Dim instance As Form

instance.Activate

public void Activate ()

public:
void Activate ()

public void Activate ()

public function Activate ()

설명

폼을 활성화한 경우, 이 폼이 활성 응용 프로그램이면 맨 앞으로 나오고 활성 응용 프로그램이 아니면 창 캡션을 깜박거립니다. 이 메서드가 적용되려면 폼이 표시되어야 합니다. 응용 프로그램에서 활성 폼을 확인하려면 ActiveForm 속성을 사용하거나, 폼이 MDI(다중 문서 인터페이스) 응용 프로그램에 있는 경우 ActiveMdiChild 속성을 사용합니다.

예제

다음 코드 예제에서는 SetDesktopLocation, Load 및 Activate 멤버를 사용하는 방법을 보여 줍니다. 이 예제를 실행하려면 Button1이라는 단추와 Label1 및 Label2라는 두 개의 Label 컨트롤이 들어 있는 Form1이라는 폼에 다음 코드를 붙여넣습니다.

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

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;
}

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;
}

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

private void button1_Click(Object sender, System.EventArgs e)
{
    // Create a new Form1 and set its Visible property to true.
    Form1 form2 = new Form1();
    form2.set_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.set_Enabled(false);
} //button1_Click

// 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.set_Text("x: " + x + " y: " + y);
    label2.set_Text("Number of forms currently open: " + count);
} //Form1_Activated

private static int count = 0;

private void Form1_Closed(Object sender, System.EventArgs e)
{
    count -= 1;
} //Form1_Closed

private void Form1_Load(Object sender, System.EventArgs e)
{
    count += 1;
} //Form1_Load

.NET Framework 보안

UIPermission 포커스를 변경하는 데 필요한 권한입니다. 연관된 열거형: UIPermissionWindow.AllWindows

플랫폼

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

.NET Framework에서 모든 플래폼의 모든 버전을 지원하지는 않습니다. 지원되는 버전의 목록은 시스템 요구 사항을 참조하십시오.

버전 정보

.NET Framework

2.0, 1.1, 1.0에서 지원

.NET Compact Framework

2.0에서 지원

참고 항목

참조

Form 클래스
Form 멤버
System.Windows.Forms 네임스페이스
ActiveForm
ActiveMdiChild

다음을 통해 공유