TabControl.DisplayRectangle Propriété

Définition

Espace de noms:

System.Windows.Forms

Assembly:

System.Windows.Forms.dll

Obtient la zone d'affichage des pages d'onglets du contrôle.

public:
 virtual property System::Drawing::Rectangle DisplayRectangle { System::Drawing::Rectangle get(); };

public override System.Drawing.Rectangle DisplayRectangle { get; }

member this.DisplayRectangle : System.Drawing.Rectangle

Public Overrides ReadOnly Property DisplayRectangle As Rectangle

Valeur de propriété

Rectangle

Rectangle qui représente la zone d'affichage des pages d'onglets.

Exemples

L’exemple de code suivant crée un TabControl avec un TabPage. Cet exemple utilise la DisplayRectangle propriété pour dessiner une Rectangle zone d’affichage de page d’onglet de tabControl1. Notez que l’exemple utilise la Inflate méthode ; sinon, le TabPage code de dessin remplace le Rectangle dessin dans la DrawOnTabPage méthode.

using namespace System::Drawing;
using namespace System::Windows::Forms;
public ref class Form1: public Form
{
private:
   Rectangle myTabRect;

public:
   Form1()
   {
      TabControl^ tabControl1 = gcnew TabControl;
      TabPage^ tabPage1 = gcnew TabPage;
      tabControl1->DrawMode = TabDrawMode::OwnerDrawFixed;
      tabControl1->Appearance = TabAppearance::Buttons;
      tabControl1->Location = Point(25,25);
      tabControl1->Controls->Add( tabPage1 );
      Controls->Add( tabControl1 );
      
      // Gets a Rectangle that represents the tab page display area of tabControl1.
      myTabRect = tabControl1->DisplayRectangle;
      myTabRect.Inflate( 1, 1 );
      tabControl1->DrawItem += gcnew DrawItemEventHandler( this, &Form1::DrawOnTabPage );
   }


private:
   void DrawOnTabPage( Object^ /*sender*/, DrawItemEventArgs^ e )
   {
      Graphics^ g = e->Graphics;
      Pen^ p = gcnew Pen( Color::Blue );
      g->DrawRectangle( p, myTabRect );
   }

};

int main()
{
   Application::Run( gcnew Form1 );
}

using System.Drawing;
using System.Windows.Forms;

public class Form1 : Form
{
    private Rectangle myTabRect;

    public Form1()
    {
        TabControl tabControl1 = new TabControl();
        TabPage tabPage1 = new TabPage();

        tabControl1.DrawMode = TabDrawMode.OwnerDrawFixed;
        tabControl1.Appearance = TabAppearance.Buttons;
        tabControl1.Location = new Point(25, 25);
        tabControl1.Controls.Add(tabPage1);
        Controls.Add(tabControl1);

        // Gets a Rectangle that represents the tab page display area of tabControl1.
        myTabRect = tabControl1.DisplayRectangle;

        myTabRect.Inflate(1, 1); 
        tabControl1.DrawItem += new DrawItemEventHandler(DrawOnTabPage);
    }

    private void DrawOnTabPage(object sender, DrawItemEventArgs e)
    {
        Graphics g = e.Graphics;
        Pen p = new Pen(Color.Blue);
        g.DrawRectangle(p, myTabRect);
    }

    static void Main() 
    {
        Application.Run(new Form1());
    }
}

Imports System.Drawing
Imports System.Windows.Forms

Public Class Form1
   Inherits Form
   Private myTabRect As Rectangle
   
   Public Sub New()
      Dim tabControl1 As New TabControl()
      Dim tabPage1 As New TabPage()
      
      tabControl1.DrawMode = TabDrawMode.OwnerDrawFixed
      tabControl1.Appearance = TabAppearance.Buttons
      tabControl1.Location = New Point(25, 25)
      tabControl1.Controls.Add(tabPage1)
      Controls.Add(tabControl1)
      
      ' Gets a Rectangle that represents the tab page display area of tabControl1.
      myTabRect = tabControl1.DisplayRectangle
      
      myTabRect.Inflate(1, 1)
      AddHandler tabControl1.DrawItem, AddressOf DrawOnTabPage
   End Sub
   
   Private Sub DrawOnTabPage(sender As Object, e As DrawItemEventArgs)
      Dim g As Graphics = e.Graphics
      Dim p As New Pen(Color.Blue)
      g.DrawRectangle(p, myTabRect)
   End Sub
   
   Shared Sub Main()
      Application.Run(New Form1())
   End Sub
End Class

Voir aussi

• Rectangle