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TabControl.SelectedIndex Właściwość

  • Odwołanie

Definicja

Przestrzeń nazw:
System.Windows.Forms
Zestaw:
System.Windows.Forms.dll

Pobiera lub ustawia indeks aktualnie wybranej strony karty.

public:
 property int SelectedIndex { int get(); void set(int value); };
[System.ComponentModel.Browsable(false)]
public int SelectedIndex { get; set; }
[<System.ComponentModel.Browsable(false)>]
member this.SelectedIndex : int with get, set
Public Property SelectedIndex As Integer

Wartość właściwości

Int32

Indeks oparty na zerowej stronie aktualnie wybranej karty. Wartość domyślna to -1, która jest również wartością, jeśli nie wybrano żadnej strony karty.

Atrybuty
BrowsableAttribute

Wyjątki

ArgumentOutOfRangeException

Wartość jest mniejsza niż -1.

Przykłady

Poniższy przykład kodu tworzy obiekt TabControl z dwoma TabPage obiektami. Właściwość SelectedIndex ustawia tabPage2 jako aktualnie wybraną stronę karty przy użyciu jej wartości indeksu.

using namespace System::Drawing;
using namespace System::Windows::Forms;
public ref class Form1: public Form
{
private:
   TabControl^ tabControl1;
   TabPage^ tabPage1;
   TabPage^ tabPage2;
   void MyTabs()
   {
      this->tabControl1 = gcnew TabControl;
      this->tabPage1 = gcnew TabPage;
      this->tabPage2 = gcnew TabPage;
      array<Control^>^tabControls = {this->tabPage1,this->tabPage2};
      this->tabControl1->Controls->AddRange( tabControls );
      this->tabControl1->Padding = Point(15,10);
      this->tabControl1->Location = Point(35,25);
      this->tabControl1->Size = System::Drawing::Size( 220, 220 );
      
      // Selects tabPage2 using SelectedIndex.
      this->tabControl1->SelectedIndex = 1;
      this->tabPage1->Text = "myTabPage1";
      this->tabPage1->TabIndex = 0;
      this->tabPage2->Text = "myTabPage2";
      this->tabPage2->TabIndex = 1;
      this->Size = System::Drawing::Size( 300, 300 );
      array<Control^>^formControls = {this->tabControl1};
      this->Controls->AddRange( formControls );
   }


public:
   Form1()
   {
      MyTabs();
   }

};

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

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

public class Form1 : Form
{
    private TabControl tabControl1;
    private TabPage tabPage1;
    private TabPage tabPage2;

    private void MyTabs()
    {
        this.tabControl1 = new TabControl();
        this.tabPage1 = new TabPage();
        this.tabPage2 = new TabPage();

        this.tabControl1.Controls.AddRange(new Control[] {
            this.tabPage1,
            this.tabPage2});
        this.tabControl1.Padding = new Point(15, 10);
        this.tabControl1.Location = new Point(35, 25);
        this.tabControl1.Size = new Size(220, 220);

        // Selects tabPage2 using SelectedIndex.
        this.tabControl1.SelectedIndex = 1;
    
        this.tabPage1.Text = "myTabPage1";
        this.tabPage1.TabIndex = 0;

        this.tabPage2.Text = "myTabPage2";
        this.tabPage2.TabIndex = 1;

        this.Size = new Size(300, 300);
        this.Controls.AddRange(new Control[] {
            this.tabControl1});
    }
    
    public Form1()
    {
        MyTabs();
    }

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

Imports System.Drawing
Imports System.Windows.Forms

Public Class Form1
    Inherits Form
    Private tabControl1 As TabControl
    Private tabPage1 As TabPage
    Private tabPage2 As TabPage

    Private Sub MyTabs()
        Me.tabControl1 = New TabControl()
        Me.tabPage1 = New TabPage()
        Me.tabPage2 = New TabPage()

        Me.tabControl1.Controls.AddRange(New Control() {Me.tabPage1, Me.tabPage2})
        Me.tabControl1.Padding = New Point(15, 10)
        Me.tabControl1.Location = New Point(35, 25)
        Me.tabControl1.Size = New Size(220, 220)

        ' Selects tabPage2 using SelectedIndex.
        Me.tabControl1.SelectedIndex = 1

        Me.tabPage1.Text = "myTabPage1"
        Me.tabPage1.TabIndex = 0

        Me.tabPage2.Text = "myTabPage2"
        Me.tabPage2.TabIndex = 1

        Me.Size = New Size(300, 300)
        Me.Controls.AddRange(New Control() {Me.tabControl1})
    End Sub

    Public Sub New()
        MyTabs()
    End Sub

    Shared Sub Main()
        Application.Run(New Form1())
    End Sub
End Class

Dotyczy

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