TabControl.GetTabRect(Int32) Méthode

Définition

Espace de noms:

System.Windows.Forms

Assembly:

System.Windows.Forms.dll

Retourne le rectangle englobant d’un onglet spécifié dans ce contrôle tabulation.

public:
 System::Drawing::Rectangle GetTabRect(int index);

public System.Drawing.Rectangle GetTabRect (int index);

member this.GetTabRect : int -> System.Drawing.Rectangle

Public Function GetTabRect (index As Integer) As Rectangle

Paramètres

index

Int32

Index de base zéro de l’onglet souhaité.

Retours

Rectangle

Rectangle qui représente les limites de l’onglet spécifié.

Exceptions

ArgumentOutOfRangeException

L’index est inférieur à zéro.

-ou-

L’index est supérieur ou égal à Count.

Exemples

L’exemple de code suivant crée un TabControl avec un TabPage. Cet exemple utilise la méthode GetTabRect pour obtenir un Rectangle qui représente la zone d’onglet tabPage1. Le myTabRectRectangle est dessiné par l’événement DrawItem.

Utilisez les espaces de noms System.Drawing et System.Windows.Forms avec cet exemple.

using namespace System::Drawing;
using namespace System::Windows::Forms;
public ref class Form1: public Form
{
private:
   TabControl^ tabControl1;
   Rectangle myTabRect;

public:
   Form1()
   {
      tabControl1 = gcnew TabControl;
      TabPage^ tabPage1 = gcnew TabPage;
      tabControl1->Controls->Add( tabPage1 );
      tabControl1->DrawMode = TabDrawMode::OwnerDrawFixed;
      tabControl1->Location = Point(25,25);
      tabControl1->Size = System::Drawing::Size( 250, 250 );
      tabPage1->TabIndex = 0;
      
      // Gets the tabPage1 tab area defined by its TabIndex.
      // Returns a Rectangle to myTabRect.
      myTabRect = tabControl1->GetTabRect( 0 );
      ClientSize = System::Drawing::Size( 300, 300 );
      Controls->Add( tabControl1 );
      tabControl1->DrawItem += gcnew DrawItemEventHandler( this, &Form1::OnDrawItem );
   }


private:
   void OnDrawItem( 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 TabControl tabControl1;
    private Rectangle myTabRect;

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

        tabControl1.Controls.Add(tabPage1);
        tabControl1.DrawMode = TabDrawMode.OwnerDrawFixed;
        tabControl1.Location = new Point(25, 25);
        tabControl1.Size = new Size(250, 250);

        tabPage1.TabIndex = 0;

        // Gets the tabPage1 tab area defined by its TabIndex.
        // Returns a Rectangle to myTabRect.
        myTabRect = tabControl1.GetTabRect(0);

        ClientSize = new Size(300, 300);
        Controls.Add(tabControl1);

        tabControl1.DrawItem += new DrawItemEventHandler(OnDrawItem);
    }
 
    private void OnDrawItem(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 tabControl1 As TabControl
    Private myTabRect As Rectangle

    Public Sub New()
        tabControl1 = New TabControl()
        Dim tabPage1 As New TabPage()

        tabControl1.Controls.Add(tabPage1)
        tabControl1.DrawMode = TabDrawMode.OwnerDrawFixed
        tabControl1.Location = New Point(25, 25)
        tabControl1.Size = New Size(250, 250)

        tabPage1.TabIndex = 0

        ' Gets the tabPage1 tab area defined by its TabIndex.
        ' Returns a Rectangle to myTabRect.
        myTabRect = tabControl1.GetTabRect(0)

        ClientSize = New Size(300, 300)
        Controls.Add(tabControl1)

        AddHandler tabControl1.DrawItem, AddressOf OnDrawItem
    End Sub

    Private Sub OnDrawItem(ByVal sender As Object, ByVal 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