TabControl.TabCount Eigenschaft

Definition

Namespace:

System.Windows.Forms

Assembly:

System.Windows.Forms.dll

Ruft die Anzahl der Registerkarten in der Registerkartenleiste ab.

public:
 property int TabCount { int get(); };

[System.ComponentModel.Browsable(false)]
public int TabCount { get; }

[<System.ComponentModel.Browsable(false)>]
member this.TabCount : int

Public ReadOnly Property TabCount As Integer

Eigenschaftswert

Int32

Die Anzahl der Registerkarten in der Registerkartenleiste.

Attribute

BrowsableAttribute

Beispiele

Im folgenden Codebeispiel wird ein TabControl mit fünf TabPage -Objekten erstellt. In diesem Beispiel wird die TabCount -Eigenschaft verwendet, um die Anzahl der Registerkarten abzurufen, die tabControl1 sich derzeit im Registerkartenstreifen befinden.

using namespace System::Drawing;
using namespace System::Windows::Forms;
public ref class Form1: public Form
{
public:
   Form1()
   {
      TabControl^ tabControl1 = gcnew TabControl;
      TabPage^ tabPage1 = gcnew TabPage;
      TabPage^ tabPage2 = gcnew TabPage;
      TabPage^ tabPage3 = gcnew TabPage;
      TabPage^ tabPage4 = gcnew TabPage;
      TabPage^ tabPage5 = gcnew TabPage;
      Label^ label1 = gcnew Label;
      tabControl1->Multiline = true;
      tabControl1->SizeMode = TabSizeMode::FillToRight;
      tabControl1->Padding = Point(15,5);
      array<Control^>^tabControls = {tabPage1,tabPage2,tabPage3,tabPage4,tabPage5};
      tabControl1->Controls->AddRange( tabControls );
      tabControl1->Location = Point(35,65);
      tabControl1->Size = System::Drawing::Size( 220, 180 );
      
      // Gets the number of tabs currently in the tabControl1 tab strip.
      // Assigns int value to the tabsInTabStrip variable.
      int tabsInTabStrip = tabControl1->TabCount;
      label1->Text = System::String::Concat( "There are ", tabsInTabStrip, " tabs in the tabControl1 tab strip." );
      label1->Location = Point(35,25);
      label1->Size = System::Drawing::Size( 220, 30 );
      Size = System::Drawing::Size( 300, 300 );
      array<Control^>^formControls = {label1,tabControl1};
      Controls->AddRange( formControls );
   }

};

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

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

public class Form1 : Form
{
    public Form1()
    {
        TabControl tabControl1 = new TabControl();
        TabPage tabPage1 = new TabPage();
        TabPage tabPage2 = new TabPage();
        TabPage tabPage3 = new TabPage();
        TabPage tabPage4 = new TabPage();
        TabPage tabPage5 = new TabPage();
        Label label1= new Label();

        tabControl1.Multiline = true;
        tabControl1.SizeMode = TabSizeMode.FillToRight;
        tabControl1.Padding = new Point(15, 5);
        tabControl1.Controls.AddRange(new Control[] {
            tabPage1, tabPage2, tabPage3, tabPage4, tabPage5});
        tabControl1.Location = new Point(35, 65);
        tabControl1.Size = new Size(220, 180);    

        // Gets the number of tabs currently in the tabControl1 tab strip.
        // Assigns int value to the tabsInTabStrip variable.
        int tabsInTabStrip = tabControl1.TabCount;

        label1.Text = "There are " + tabsInTabStrip.ToString() + 
            " tabs in the tabControl1 tab strip.";
        label1.Location = new Point(35, 25);
        label1.Size = new Size(220, 30);

        Size = new Size(300, 300);
        Controls.AddRange(new Control[] {label1, tabControl1});
    }

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

Imports System.Drawing
Imports System.Windows.Forms

Public Class Form1
    Inherits Form

    Public Sub New()
        Dim tabControl1 As New TabControl()
        Dim tabPage1 As New TabPage()
        Dim tabPage2 As New TabPage()
        Dim tabPage3 As New TabPage()
        Dim tabPage4 As New TabPage()
        Dim tabPage5 As New TabPage()
        Dim label1 As New Label()

        tabControl1.Multiline = True
        tabControl1.SizeMode = TabSizeMode.FillToRight
        tabControl1.Padding = New Point(15, 5)
        tabControl1.Controls.AddRange(New Control() {tabPage1, tabPage2, tabPage3, tabPage4, tabPage5})
        tabControl1.Location = New Point(35, 65)
        tabControl1.Size = New Size(220, 180)

        ' Gets the number of tabs currently in the tabControl1 tab strip.
        ' Assigns int value to the tabsInTabStrip variable.
        Dim tabsInTabStrip As Integer = tabControl1.TabCount

        label1.Text = "There are " + tabsInTabStrip.ToString() + " tabs in the tabControl1 tab strip."
        label1.Location = New Point(35, 25)
        label1.Size = New Size(220, 30)

        Size = New Size(300, 300)
        Controls.AddRange(New Control() {label1, tabControl1})
    End Sub

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