StatusBar.PanelClick-Ereignis

Tritt ein, wenn in einem StatusBar-Steuerelement auf ein StatusBarPanel-Objekt geklickt wird.

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

Syntax

'Declaration
Public Event PanelClick As StatusBarPanelClickEventHandler
'Usage
Dim instance As StatusBar
Dim handler As StatusBarPanelClickEventHandler

AddHandler instance.PanelClick, handler

public event StatusBarPanelClickEventHandler PanelClick

public:
event StatusBarPanelClickEventHandler^ PanelClick {
    void add (StatusBarPanelClickEventHandler^ value);
    void remove (StatusBarPanelClickEventHandler^ value);
}

/** @event */
public void add_PanelClick (StatusBarPanelClickEventHandler value)

/** @event */
public void remove_PanelClick (StatusBarPanelClickEventHandler value)

JScript unterstützt die Verwendung von Ereignissen, aber nicht die Deklaration von neuen Ereignissen.

Hinweise

Wenn in einem StatusBar-Steuerelement auf einen Bereich geklickt wird, können Sie mithilfe dieses Ereignisses Aufgaben ausführen. Dem Ereignis werden durch das StatusBarPanelClickEventArgs, das als Parameter an den Ereignishandler übergeben wird, Daten bereitgestellt, anhand derer das StatusBarPanel, auf das geklickt wurde, ermittelt und Aufgaben für den ausgewählten Bereich ausgeführt werden können.

Weitere Informationen zum Behandeln von Ereignissen finden Sie unter Behandeln von Ereignissen.

Beispiel

Im folgenden Codebeispiel werden die Verwendung der Member SizingGrip, StatusBarPanel.Alignment, StatusBarPanel.Width, StatusBarPanel.AutoSize und StatusBarPanel.BorderStyle sowie die Behandlung des PanelClick-Ereignisses veranschaulicht.

Fügen Sie zum Ausführen des Beispiels den folgenden Code in ein Formular ein. Rufen Sie die InitializeStatusBarPanels-Methode im Konstruktor oder in der Load-Methode des Formulars auf.

Friend WithEvents statusBar1 As System.Windows.Forms.StatusBar

Private Sub InitializeStatusBarPanels()

    ' Create a StatusBar control.
    statusBar1 = New StatusBar

    ' Dock the status bar at the top of the form. 
    statusBar1.Dock = DockStyle.Top

    ' Set the SizingGrip property to false so the user cannot 
    ' resize the status bar.
    statusBar1.SizingGrip = False

    ' Create two StatusBarPanel objects to display in statusBar1.
    Dim panel1 As New StatusBarPanel
    Dim panel2 As New StatusBarPanel

    ' Set the width of panel2 explicitly and set
    ' panel1 to fill in the remaining space.
    panel2.Width = 80
    panel1.AutoSize = StatusBarPanelAutoSize.Spring

    ' Set the text alignment within each panel.
    panel1.Alignment = HorizontalAlignment.Left
    panel2.Alignment = HorizontalAlignment.Right

    ' Display the first panel without a border and the second
    ' with a raised border.
    panel1.BorderStyle = StatusBarPanelBorderStyle.None
    panel2.BorderStyle = StatusBarPanelBorderStyle.Raised

    ' Set the text of the panels. The panel1 object is reserved
    ' for line numbers, while panel2 is set to the current time.
    panel1.Text = "Reserved for important information."
    panel2.Text = System.DateTime.Now.ToShortTimeString

    ' Set a tooltip for panel2
    panel2.ToolTipText = "Click time to display seconds"

    ' Display panels in statusBar1 and add them to the
    ' status bar's StatusBarPanelCollection.
    statusBar1.ShowPanels = True
    statusBar1.Panels.Add(panel1)
    statusBar1.Panels.Add(panel2)

    ' Add the StatusBar to the form.
    Me.Controls.Add(statusBar1)
End Sub


' If the user clicks the status bar, check the text of the 
' StatusBarPanel.  If the text equals a short time string,
' change it to long time display.
Private Sub statusBar1_PanelClick(ByVal sender As Object, _
    ByVal e As StatusBarPanelClickEventArgs) _
        Handles statusBar1.PanelClick
    If (e.StatusBarPanel.Text = _
        System.DateTime.Now.ToShortTimeString) Then
        e.StatusBarPanel.Text = System.DateTime.Now.ToLongTimeString
    End If
End Sub

internal System.Windows.Forms.StatusBar statusBar1;

private void InitializeStatusBarPanels()
{

    // Create a StatusBar control.
    statusBar1 = new StatusBar();

    // Dock the status bar at the top of the form. 
    statusBar1.Dock = DockStyle.Top;

    // Set the SizingGrip property to false so the user cannot 
    // resize the status bar.
    statusBar1.SizingGrip = false;

    // Associate the event-handling method with the 
    // PanelClick event.
    statusBar1.PanelClick += 
        new StatusBarPanelClickEventHandler(statusBar1_PanelClick);

    // Create two StatusBarPanel objects to display in statusBar1.
    StatusBarPanel panel1 = new StatusBarPanel();
    StatusBarPanel panel2 = new StatusBarPanel();

    // Set the width of panel2 explicitly and set
    // panel1 to fill in the remaining space.
    panel2.Width = 80;
    panel1.AutoSize = StatusBarPanelAutoSize.Spring;

    // Set the text alignment within each panel.
    panel1.Alignment = HorizontalAlignment.Left;
    panel2.Alignment = HorizontalAlignment.Right;

    // Display the first panel without a border and the second
    // with a raised border.
    panel1.BorderStyle = StatusBarPanelBorderStyle.None;
    panel2.BorderStyle = StatusBarPanelBorderStyle.Raised;

    // Set the text of the panels. The panel1 object is reserved
    // for line numbers, while panel2 is set to the current time.
    panel1.Text = "Reserved for important information.";
    panel2.Text = System.DateTime.Now.ToShortTimeString();

    // Set a tooltip for panel2
    panel2.ToolTipText = "Click time to display seconds";

    // Display panels in statusBar1 and add them to the
    // status bar's StatusBarPanelCollection.
    statusBar1.ShowPanels = true;
    statusBar1.Panels.Add(panel1);
    statusBar1.Panels.Add(panel2);

    // Add the StatusBar to the form.
    this.Controls.Add(statusBar1);
}


// If the user clicks the status bar, check the text of the 
// StatusBarPanel.  If the text equals a short time string,
// change it to long time display.
private void statusBar1_PanelClick(object sender, 
    StatusBarPanelClickEventArgs e)
{
    if (e.StatusBarPanel.Text == 
        System.DateTime.Now.ToShortTimeString())
    {
        e.StatusBarPanel.Text = 
            System.DateTime.Now.ToLongTimeString();
    }
}

internal:
   System::Windows::Forms::StatusBar^ statusBar1;

private:
   void InitializeStatusBarPanels()
   {
      
      // Create a StatusBar control.
      statusBar1 = gcnew StatusBar;
      
      // Dock the status bar at the top of the form. 
      statusBar1->Dock = DockStyle::Top;
      
      // Set the SizingGrip property to false so the user cannot 
      // resize the status bar.
      statusBar1->SizingGrip = false;
      
      // Associate the event-handling method with the 
      // PanelClick event.
      statusBar1->PanelClick += gcnew StatusBarPanelClickEventHandler( this, &Form1::statusBar1_PanelClick );
      
      // Create two StatusBarPanel objects to display in statusBar1.
      StatusBarPanel^ panel1 = gcnew StatusBarPanel;
      StatusBarPanel^ panel2 = gcnew StatusBarPanel;
      
      // Set the width of panel2 explicitly and set
      // panel1 to fill in the remaining space.
      panel2->Width = 80;
      panel1->AutoSize = StatusBarPanelAutoSize::Spring;
      
      // Set the text alignment within each panel.
      panel1->Alignment = HorizontalAlignment::Left;
      panel2->Alignment = HorizontalAlignment::Right;
      
      // Display the first panel without a border and the second
      // with a raised border.
      panel1->BorderStyle = StatusBarPanelBorderStyle::None;
      panel2->BorderStyle = StatusBarPanelBorderStyle::Raised;
      
      // Set the text of the panels. The panel1 object is reserved
      // for line numbers, while panel2 is set to the current time.
      panel1->Text = "Reserved for important information.";
      panel2->Text = System::DateTime::Now.ToShortTimeString();
      
      // Set a tooltip for panel2
      panel2->ToolTipText = "Click time to display seconds";
      
      // Display panels in statusBar1 and add them to the
      // status bar's StatusBarPanelCollection.
      statusBar1->ShowPanels = true;
      statusBar1->Panels->Add( panel1 );
      statusBar1->Panels->Add( panel2 );
      
      // Add the StatusBar to the form.
      this->Controls->Add( statusBar1 );
   }

   // If the user clicks the status bar, check the text of the 
   // StatusBarPanel.  If the text equals a short time string,
   // change it to long time display.
   void statusBar1_PanelClick( Object^ /*sender*/, StatusBarPanelClickEventArgs^ e )
   {
      if ( e->StatusBarPanel->Text == System::DateTime::Now.ToShortTimeString() )
      {
         e->StatusBarPanel->Text = System::DateTime::Now.ToLongTimeString();
      }
   }

System.Windows.Forms.StatusBar statusBar1;

private void InitializeStatusBarPanels()
{
    // Create a StatusBar control.
    statusBar1 = new StatusBar();
    // Dock the status bar at the top of the form. 
    statusBar1.set_Dock(DockStyle.Top);
    // Set the SizingGrip property to false so the user cannot 
    // resize the status bar.
    statusBar1.set_SizingGrip(false);
    // Associate the event-handling method with the 
    // PanelClick event.
    statusBar1.add_PanelClick(new StatusBarPanelClickEventHandler(
        statusBar1_PanelClick));
    // Create two StatusBarPanel objects to display in statusBar1.
    StatusBarPanel panel1 = new StatusBarPanel();
    StatusBarPanel panel2 = new StatusBarPanel();
    // Set the width of panel2 explicitly and set
    // panel1 to fill in the remaining space.
    panel2.set_Width(80);
    panel1.set_AutoSize(StatusBarPanelAutoSize.Spring);
    // Set the text alignment within each panel.
    panel1.set_Alignment(HorizontalAlignment.Left);
    panel2.set_Alignment(HorizontalAlignment.Right);
    // Display the first panel without a border and the second
    // with a raised border.
    panel1.set_BorderStyle(StatusBarPanelBorderStyle.None);
    panel2.set_BorderStyle(StatusBarPanelBorderStyle.Raised);
    // Set the text of the panels. The panel1 object is reserved
    // for line numbers, while panel2 is set to the current time.
    panel1.set_Text("Reserved for important information.");
    panel2.set_Text(System.DateTime.get_Now().ToShortTimeString());
    // Set a tooltip for panel2
    panel2.set_ToolTipText("Click time to display seconds");
    // Display panels in statusBar1 and add them to the
    // status bar's StatusBarPanelCollection.
    statusBar1.set_ShowPanels(true);
    statusBar1.get_Panels().Add(panel1);
    statusBar1.get_Panels().Add(panel2);
    // Add the StatusBar to the form.
    this.get_Controls().Add(statusBar1);
} //InitializeStatusBarPanels

// If the user clicks the status bar, check the text of the 
// StatusBarPanel. If the text equals a short time string,
// change it to long time display.
private void statusBar1_PanelClick(Object sender,
    StatusBarPanelClickEventArgs e)
{
    if (e.get_StatusBarPanel().get_Text().Equals(
        System.DateTime.get_Now().ToShortTimeString())) {
        e.get_StatusBarPanel().set_Text(System.DateTime.get_Now().
            ToLongTimeString());
    }
} //statusBar1_PanelClick

Plattformen

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile für Pocket PC, 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

Siehe auch

Referenz

StatusBar-Klasse
StatusBar-Member
System.Windows.Forms-Namespace
OnPanelClick
StatusBarPanelClickEventArgs
StatusBarPanelClickEventHandler