TabControl.TabPageCollection.RemoveAt(Int32) メソッド

定義

指定されたインデックスのタブ ページをコレクションから削除します。Removes the tab page at the specified index from the collection.

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)

パラメーター

index
Int32

削除する TabPage の 0 から始まるインデックス。The zero-based index of the TabPage to remove.

実装

次のコード例では、最初に3を持つを作成し TabControl TabPage ます。The following code example initially creates a TabControl with three TabPage. この例では、メソッドを使用し RemoveAt tabPage1 て、インデックスによって指定されたコントロールコレクションからを削除し tabControl1 ます。This example uses the RemoveAt method to remove tabPage1, which is specified by its index, from the tabControl1 controls collection. プロパティは、 TabPages tabControl1 このコレクションからタブページを追加および削除する controls コレクションを取得することに注意してください。Notice that the TabPages property gets the tabControl1 controls collection to add and remove tab pages from this collection.

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

適用対象

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