TabControl.TabPageCollection.RemoveAt(Int32) Metode

Referensi

Definisi

Ruang nama:: System.Windows.Forms

Rakitan:: System.Windows.Forms.dll

Penting

Beberapa informasi terkait produk prarilis yang dapat diubah secara signifikan sebelum dirilis. Microsoft tidak memberikan jaminan, tersirat maupun tersurat, sehubungan dengan informasi yang diberikan di sini.

Menghapus halaman tab pada indeks yang ditentukan dari koleksi.

public:
 virtual void RemoveAt(int index);

public void RemoveAt (int index);

abstract member RemoveAt : int -> unit
override this.RemoveAt : int -> unit

Public Sub RemoveAt (index As Integer)

Parameter

index: Int32

Indeks berbasis nol dari yang TabPage akan dihapus.

Penerapan

RemoveAt(Int32)

Contoh

Contoh kode berikut awalnya membuat TabControl dengan tiga TabPage. Contoh ini menggunakan RemoveAt metode untuk menghapus tabPage1, yang ditentukan oleh indeksnya, dari tabControl1 koleksi kontrol. Perhatikan bahwa TabPages properti mendapatkan tabControl1 koleksi kontrol untuk menambahkan dan menghapus halaman tab dari koleksi ini.

using namespace System::Drawing;
using namespace System::Windows::Forms;

public ref class Form1: public Form
{
private:
   TabControl^ tabControl1;
   TabPage^ tabPage1;
   TabPage^ tabPage2;
   TabPage^ tabPage3;

public:
   Form1()
   {
      this->tabControl1 = gcnew TabControl;
      array<System::String^>^tabText = {"tabPage1","tabPage2","tabPage3"};
      this->tabPage1 = gcnew TabPage( tabText[ 0 ]->ToString() );
      this->tabPage2 = gcnew TabPage( tabText[ 1 ]->ToString() );
      this->tabPage3 = gcnew TabPage( tabText[ 2 ]->ToString() );
      
      // Populates the tabControl1 with three tab pages.
      array<TabPage^>^tabPages = {tabPage1,tabPage2,tabPage3};
      this->tabControl1->TabPages->AddRange( tabPages );
      
      // Assigns TabIndex values to tab pages. 
      this->tabPage1->TabIndex = 0;
      this->tabPage2->TabIndex = 1;
      this->tabPage3->TabIndex = 2;
      
      // Gets the tabControl1 controls collection.
      // Removes the tabPage1 by its TabIndex.
      this->tabControl1->TabPages->RemoveAt( 0 );
      this->tabControl1->Location = Point(25,25);
      this->tabControl1->Size = System::Drawing::Size( 250, 250 );
      this->ClientSize = System::Drawing::Size( 300, 300 );
      this->Controls->Add( tabControl1 );
   }

};

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 TabPage tabPage3;

    public Form1()
    {
        this.tabControl1 = new TabControl();
        string[] tabText = {"tabPage1", "tabPage2", "tabPage3"};
        this.tabPage1 = new TabPage(tabText[0]);
        this.tabPage2 = new TabPage(tabText[1]);
        this.tabPage3 = new TabPage(tabText[2]);

        // Populates the tabControl1 with three tab pages.
        this.tabControl1.TabPages.AddRange(new TabPage[] {
            tabPage1, tabPage2, tabPage3});

        // Assigns TabIndex values to tab pages. 
        this.tabPage1.TabIndex = 0;
        this.tabPage2.TabIndex = 1;
        this.tabPage3.TabIndex = 2;

        // Gets the tabControl1 controls collection.
        // Removes the tabPage1 by its TabIndex.
        this.tabControl1.TabPages.RemoveAt(0);

        this.tabControl1.Location = new Point(25, 25);
        this.tabControl1.Size = new Size(250, 250);

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

    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 tabPage3 As TabPage

    Public Sub New()
        Me.tabControl1 = New TabControl()
        Dim tabText As String() = {"tabPage1", "tabPage2", "tabPage3"}
        Me.tabPage1 = New TabPage(tabText(0))
        Me.tabPage2 = New TabPage(tabText(1))
        Me.tabPage3 = New TabPage(tabText(2))

        ' Populates the tabControl1 with three tab pages.
        Me.tabControl1.TabPages.AddRange(New TabPage() {tabPage1, tabPage2, tabPage3})

        ' Assigns TabIndex values to tab pages. 
        Me.tabPage1.TabIndex = 0
        Me.tabPage2.TabIndex = 1
        Me.tabPage3.TabIndex = 2

        ' Gets the tabControl1 controls collection.
        ' Removes the tabPage1 by its TabIndex.
        Me.tabControl1.TabPages.RemoveAt(0)

        Me.tabControl1.Location = New Point(25, 25)
        Me.tabControl1.Size = New Size(250, 250)

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

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

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