TabControl.TabPageCollection.RemoveAt(Int32) TabControl.TabPageCollection.RemoveAt(Int32) TabControl.TabPageCollection.RemoveAt(Int32) TabControl.TabPageCollection.RemoveAt(Int32) Method

Definizione

Rimuove la scheda nell'indice specificato dall'insieme.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)

Parametri

index
Int32 Int32 Int32 Int32

Indice in base zero dell'elemento TabPage da rimuovere.The zero-based index of the TabPage to remove.

Implementazioni

Esempi

L'esempio di codice seguente crea inizialmente un TabControl con tre TabPage.The following code example initially creates a TabControl with three TabPage. Questo esempio Usa la RemoveAt metodo per rimuovere tabPage1, che viene specificato mediante il relativo indice, dal tabControl1 insieme di controlli.This example uses the RemoveAt method to remove tabPage1, which is specified by its index, from the tabControl1 controls collection. Si noti che il TabPages property get il tabControl1 insieme per aggiungere e rimuovere le schede da questa raccolta di controlli.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

Si applica a

Vedi anche