TabControl.TabPageCollection.Contains(TabPage) TabControl.TabPageCollection.Contains(TabPage) TabControl.TabPageCollection.Contains(TabPage) TabControl.TabPageCollection.Contains(TabPage) Method

정의

지정된 탭 페이지가 해당 컬렉션에 있는지 여부를 확인합니다.Determines whether a specified tab page is in the collection.

public:
 bool Contains(System::Windows::Forms::TabPage ^ page);
public bool Contains (System.Windows.Forms.TabPage page);
member this.Contains : System.Windows.Forms.TabPage -> bool
Public Function Contains (page As TabPage) As Boolean

매개 변수

page
TabPage TabPage TabPage TabPage

컬렉션에서 찾을 TabPage입니다.The TabPage to locate in the collection.

반환

지정된 TabPage가 해당 컬렉션에 있으면 true이고, 그렇지 않으면 false입니다.true if the specified TabPage is in the collection; otherwise, false.

예외

page 값이 null인 경우The value of page is null.

예제

처음으로 만든 다음 코드 예제는 TabControl 3 개 TabPage 개체입니다.The following code example initially creates a TabControl with three TabPage objects. 처음 두 개의 탭 페이지에 직접 추가 됩니다 tabControl1 여는 AddRange 메서드.The first two tab pages are added directly to tabControl1 by the AddRange method. Contains 메서드를 결정 tabPage3 의 일부인는 tabControl1 컬렉션을 제어 합니다.The Contains method determines tabPage3 is part of the tabControl1 controls collection. 때문에 tabPage3 찾을 수 없습니다 하 여 추가 된이 컬렉션에는 Add 메서드.Because tabPage3 was not found in this collection, it was added by the Add method.

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 two tab pages.
      array<TabPage^>^tabPages = {tabPage1,tabPage2};
      this->tabControl1->TabPages->AddRange( tabPages );
      
      // Checks the tabControl1 controls collection for tabPage3.
      // Adds tabPage3 to tabControl1 if it is not in the collection.
      if ( tabControl1->TabPages->Contains( tabPage3 ) == false )
            this->tabControl1->TabPages->Add( tabPage3 );

      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 two tab pages.
        this.tabControl1.TabPages.AddRange(new TabPage[] {
            tabPage1, tabPage2});

        // Checks the tabControl1 controls collection for tabPage3.
        // Adds tabPage3 to tabControl1 if it is not in the collection.
        if (tabControl1.TabPages.Contains(tabPage3) == false)
            this.tabControl1.TabPages.Add(tabPage3);

        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 two tab pages.      
        Me.tabControl1.TabPages.AddRange(New TabPage() {tabPage1, tabPage2})

        ' Checks the tabControl1 controls collection for tabPage3.
        ' Adds tabPage3 to tabControl1 if it is not in the collection.
        If tabControl1.TabPages.Contains(tabPage3) = False Then
            Me.tabControl1.TabPages.Add(tabPage3)
        End If

        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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