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Classe StatusBarDrawItemEventArgs
Fornece dados para o DrawItem evento.
Assembly: System.Windows.Forms (em System.Windows.Forms.dll)
The DrawItem evento ocorre quando um aspecto visual de um desenho proprietário StatusBarPanel alterações. A StatusBarDrawItemEventArgs Especifica o Graphics objeto para desenhar o painel, o Rectangle objeto no qual desenhar o painel, o número de identificação do painel, as informações de estado sobre o painel e o painel para desenhar. Você pode usar os dados fornecidos por esta classe em um manipulador de eventos a DrawItem evento para criar painéis desenhado personalizada em seu aplicativo StatusBar controle.
O exemplo de código a seguir demonstra como usar o Style propriedade, o StatusBarDrawItemEventHandler delegado, a StatusBarDrawItemEventArgs classe, o StatusBarPanelStyle enumeração e o StatusBarDrawItemEventArgs.Panel propriedade. Para executar o exemplo colar o código a seguir em um formulário. Chamar o InitializeStatusBarPanels método no construtor do formulário ou Load método.
private StatusBar StatusBar1; privatevoid 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.privatevoid 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
System.EventArgs
System.Windows.Forms.DrawItemEventArgs
System.Windows.Forms.StatusBarDrawItemEventArgs
Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98
o.NET Framework e.NET Compact Framework não oferecem suporte a todas as versões de cada plataforma. Para obter uma lista de versões suportadas, consulte Requisitos de sistema do .NET framework.