Control.Parent-Eigenschaft

Artikel
08/20/2007

Ruft den übergeordneten Container des Steuerelements ab oder legt diesen fest.

Namespace: System.Windows.Forms
Assembly: System.Windows.Forms (in system.windows.forms.dll)

Syntax

'Declaration
Public Property Parent As Control
'Usage
Dim instance As Control
Dim value As Control

value = instance.Parent

instance.Parent = value

public Control Parent { get; set; }

public:
property Control^ Parent {
    Control^ get ();
    void set (Control^ value);
}

/** @property */
public Control get_Parent ()

/** @property */
public void set_Parent (Control value)

public function get Parent () : Control

public function set Parent (value : Control)

Eigenschaftenwert

Ein Control, das das übergeordnete Element oder das Container-Steuerelement des Steuerelements darstellt.

Hinweise

Wenn Sie die Parent-Eigenschaft auf NULL (Nothing in Visual Basic) festlegen, wird das Steuerelement aus der Control.ControlCollection des aktuellen übergeordneten Steuerelements entfernt.

Beispiel

Im folgenden Codebeispiel werden mithilfe der Parent-Eigenschaft und der FindForm-Methode Eigenschaften für das übergeordnete Steuerelement einer Schaltfläche und dessen Formular festgelegt.

' This example uses the Parent property and the Find method of Control to set
' properties on the parent control of a Button and its Form. The example assumes
' that a Button control named button1 is located within a GroupBox control. The 
' example also assumes that the Click event of the Button control is connected to
' the event handler method defined in the example.
Private Sub button1_Click(sender As Object, e As System.EventArgs) Handles button1.Click
   ' Get the control the Button control is located in. In this case a GroupBox.
   Dim control As Control = button1.Parent
   ' Set the text and backcolor of the parent control.
   control.Text = "My Groupbox"
   control.BackColor = Color.Blue
   ' Get the form that the Button control is contained within.
   Dim myForm As Form = button1.FindForm()
   ' Set the text and color of the form containing the Button.
   myForm.Text = "The Form of My Control"
   myForm.BackColor = Color.Red
End Sub

// This example uses the Parent property and the Find method of Control to set
// properties on the parent control of a Button and its Form. The example assumes
// that a Button control named button1 is located within a GroupBox control. The 
// example also assumes that the Click event of the Button control is connected to
// the event handler method defined in the example.
private void button1_Click(object sender, System.EventArgs e)
{
   // Get the control the Button control is located in. In this case a GroupBox.
   Control control = button1.Parent;
   // Set the text and backcolor of the parent control.
   control.Text = "My Groupbox";
   control.BackColor = Color.Blue;
   // Get the form that the Button control is contained within.
   Form myForm = button1.FindForm();
   // Set the text and color of the form containing the Button.
   myForm.Text = "The Form of My Control";
   myForm.BackColor = Color.Red;
}

   // This example uses the Parent property and the Find method of Control to set
   // properties on the parent control of a Button and its Form. The example assumes
   // that a Button control named button1 is located within a GroupBox control. The 
   // example also assumes that the Click event of the Button control is connected to
   // the event handler method defined in the example.
private:
   void button1_Click( Object^ /*sender*/, System::EventArgs^ /*e*/ )
   {
      // Get the control the Button control is located in. In this case a GroupBox.
      Control^ control = button1->Parent;
      
      // Set the text and backcolor of the parent control.
      control->Text = "My Groupbox";
      control->BackColor = Color::Blue;
      
      // Get the form that the Button control is contained within.
      Form^ myForm = button1->FindForm();
      
      // Set the text and color of the form containing the Button.
      myForm->Text = "The Form of My Control";
      myForm->BackColor = Color::Red;
   }

// This example uses the Parent property and the Find method of Control to 
// set properties on the parent control of a Button and its Form. The 
// example assumes that a Button control named button1 is located within a 
// GroupBox control. The example also assumes that the Click event of the 
// Button control is connected to the event handler method defined in the 
// example.
private void button1_Click(Object sender, System.EventArgs e)
{
    // Get the control the Button control is located in. 
    // In this case a GroupBox.
    Control control = button1.get_Parent();

    // Set the text and backcolor of the parent control.
    control.set_Text("My Groupbox");
    control.set_BackColor(Color.get_Blue());

    // Get the form that the Button control is contained within.
    Form myForm = button1.FindForm();

    // Set the text and color of the form containing the Button.
    myForm.set_Text("The Form of My Control");
    myForm.set_BackColor(Color.get_Red());
} //button1_Click

.NET Framework-Sicherheit

UIPermission für alle Fenster zum Abrufen dieses Eigenschaftenwerts. Zugeordnete Enumeration: UIPermissionWindow.AllWindows

Plattformen

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

.NET Framework unterstützt nicht alle Versionen sämtlicher Plattformen. Eine Liste der unterstützten Versionen finden Sie unter Systemanforderungen.

Versionsinformationen

.NET Framework

Unterstützt in: 2.0, 1.1, 1.0

.NET Compact Framework

Unterstützt in: 2.0, 1.0

Siehe auch

Referenz

Control-Klasse
Control-Member
System.Windows.Forms-Namespace
Control.Controls-Eigenschaft
Control.ControlCollection

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