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StatusBarDrawItemEventHandler (Delegado)

Representa el método que controlará el evento DrawItem de StatusBar.

Espacio de nombres: System.Windows.Forms
Ensamblado: System.Windows.Forms (en system.windows.forms.dll)

public delegate void StatusBarDrawItemEventHandler (
	Object sender,
	StatusBarDrawItemEventArgs sbdevent
)
/** @delegate */
public delegate void StatusBarDrawItemEventHandler (
	Object sender, 
	StatusBarDrawItemEventArgs sbdevent
)
No aplicable.

Parámetros

sender

Origen del evento.

sbdevent

StatusBarDrawItemEventArgs que contiene los datos del evento.

Cuando se crea un delegado de StatusBarDrawItemEventHandler, se identifica el método que controlará el evento. Para asociar el evento con el controlador de eventos, hay que agregar una instancia del delegado al evento. Siempre que se produce el evento, se llama al controlador de eventos, a menos que se quite el delegado. Para obtener más información acerca de delegados del controlador de eventos, vea Eventos y delegados.

En el siguiente ejemplo de código se muestra cómo usar la propiedad StatusBarPanel.Style, el delegado de StatusBarDrawItemEventHandler, la clase StatusBarDrawItemEventArgs, la enumeración StatusBarPanelStyle y la propiedad Panel. Para ejecutar el ejemplo, pegue el siguiente código en un formulario. Llame al método InitializeStatusBarPanels en el constructor del formulario o en el método de control de eventos Load.

private StatusBar StatusBar1;

private void InitializeStatusBarPanels()
{
    StatusBar1 = new StatusBar();

    // Create two StatusBarPanel objects.
    StatusBarPanel panel1 = new StatusBarPanel();
    StatusBarPanel panel2 = new StatusBarPanel();

    // Set the style of the panels.  
    // panel1 will be owner-drawn.
    panel1.Style = StatusBarPanelStyle.OwnerDraw;

    // The panel2 object will be drawn by the operating system.
    panel2.Style = StatusBarPanelStyle.Text;

    // Set the text of both panels to the same date string.
    panel1.Text = System.DateTime.Today.ToShortDateString();
    panel2.Text = System.DateTime.Today.ToShortDateString();

    // Add both panels to the StatusBar.
    StatusBar1.Panels.Add(panel1);
    StatusBar1.Panels.Add(panel2);

    // Make panels visible by setting the ShowPanels 
    // property to True.
    StatusBar1.ShowPanels = true;

    // Associate the event-handling method with the DrawItem event 
    // for the owner-drawn panel.
    StatusBar1.DrawItem += 
        new StatusBarDrawItemEventHandler(DrawCustomStatusBarPanel);
        
    this.Controls.Add(StatusBar1);
}

// Draw the panel.
private void DrawCustomStatusBarPanel(object sender, 
    StatusBarDrawItemEventArgs e)
{

    // Draw a blue background in the owner-drawn panel.
    e.Graphics.FillRectangle(Brushes.AliceBlue, e.Bounds);

    // Create a StringFormat object to align text in the panel.
    StringFormat textFormat = new StringFormat();

    // Center the text in the middle of the line.
    textFormat.LineAlignment = StringAlignment.Center;

    // Align the text to the left.
    textFormat.Alignment = StringAlignment.Far;

    // Draw the panel's text in dark blue using the Panel 
    // and Bounds properties of the StatusBarEventArgs object 
    // and the StringFormat object.
    e.Graphics.DrawString(e.Panel.Text, StatusBar1.Font, 
        Brushes.DarkBlue, new RectangleF(e.Bounds.X, 
        e.Bounds.Y, e.Bounds.Width, e.Bounds.Height), textFormat);

}

private StatusBar statusBar1;

private void InitializeStatusBarPanels()
{
    statusBar1 = new StatusBar();
    // Create two StatusBarPanel objects.
    StatusBarPanel panel1 = new StatusBarPanel();
    StatusBarPanel panel2 = new StatusBarPanel();
    // Set the style of the panels.  
    // panel1 will be owner-drawn.
    panel1.set_Style(StatusBarPanelStyle.OwnerDraw);
    // The panel2 object will be drawn by the operating system.
    panel2.set_Style(StatusBarPanelStyle.Text);
    // Set the text of both panels to the same date string.
    panel1.set_Text(System.DateTime.get_Today().ToShortDateString());
    panel2.set_Text(System.DateTime.get_Today().ToShortDateString());
    // Add both panels to the StatusBar.
    statusBar1.get_Panels().Add(panel1);
    statusBar1.get_Panels().Add(panel2);
    // Make panels visible by setting the ShowPanels 
    // property to True.
    statusBar1.set_ShowPanels(true);
    // Associate the event-handling method with the DrawItem event 
    // for the owner-drawn panel.
    statusBar1.add_DrawItem(new StatusBarDrawItemEventHandler(
        DrawCustomStatusBarPanel));

    this.get_Controls().Add(statusBar1);
} //InitializeStatusBarPanels

// Draw the panel.
private void DrawCustomStatusBarPanel(Object sender,
    StatusBarDrawItemEventArgs e)
{
    // Draw a blue background in the owner-drawn panel.
    e.get_Graphics().FillRectangle(Brushes.get_AliceBlue(), e.get_Bounds());
    // Create a StringFormat object to align text in the panel.
    StringFormat textFormat = new StringFormat();
    // Center the text in the middle of the line.
    textFormat.set_LineAlignment(StringAlignment.Center);
    // Align the text to the left.
    textFormat.set_Alignment(StringAlignment.Far);
    // Draw the panel's text in dark blue using the Panel 
    // and Bounds properties of the StatusBarEventArgs object 
    // and the StringFormat object.
    e.get_Graphics().DrawString(e.get_Panel().get_Text(),
        statusBar1.get_Font(), Brushes.get_DarkBlue(),
        new RectangleF(e.get_Bounds().get_X(), e.get_Bounds().get_Y(),
        e.get_Bounds().get_Width(), e.get_Bounds().get_Height()), textFormat);
} //DrawCustomStatusBarPanel

Windows 98, Windows 2000 Service Pack 4, Windows CE, Windows Millennium, Windows Mobile para Pocket PC, Windows Mobile para Smartphone, Windows Server 2003, Windows XP Media Center, Windows XP Professional x64, Windows XP SP2, Windows XP Starter

Microsoft .NET Framework 3.0 es compatible con Windows Vista, Microsoft Windows XP SP2 y Windows Server 2003 SP1.

.NET Framework

Compatible con: 3.0, 2.0, 1.1, 1.0
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