TabPage.ImageIndex プロパティ

定義

このタブに表示されているイメージのインデックスを取得または設定します。Gets or sets the index to the image displayed on this tab.

public:
 property int ImageIndex { int get(); void set(int value); };
[System.ComponentModel.TypeConverter(typeof(System.Windows.Forms.ImageIndexConverter))]
public int ImageIndex { get; set; }
member this.ImageIndex : int with get, set
Public Property ImageIndex As Integer

プロパティ値

タブに表示されるのImageListイメージの0から始まるインデックス。既定値は -1 です。これはイメージがないことを示します。The zero-based index to the image in the ImageList that appears on the tab. The default is -1, which signifies no image.

属性

例外

ImageIndex の値が -1 未満です。The ImageIndex value is less than -1.

次のコード例ではTabControl 、をTabPage使用してを作成します。The following code example creates a TabControl with one TabPage. この例ではImageIndex 、プロパティを使用してmyImages 、のtabPage1タブに表示するイメージを指定します。This example uses the ImageIndex property to specify which image from myImages displays on the tab of tabPage1.

using namespace System::Drawing;
using namespace System::ComponentModel;
using namespace System::Windows::Forms;
using namespace System::Resources;
public ref class Form1: public Form
{
public:
   Form1()
   {
      IContainer^ components = gcnew System::ComponentModel::Container;
      ResourceManager^ resources = gcnew ResourceManager( Form1::typeid );
      TabControl^ tabControl1 = gcnew TabControl;
      TabPage^ tabPage1 = gcnew TabPage;
      ImageList^ myImages = gcnew ImageList( components );
      tabControl1->Controls->Add( tabPage1 );
      
      // Displays images from myImages on the tabs of tabControl1.
      tabControl1->ImageList = myImages;
      
      // Specifies which image to display (on the tab of tabPage1) by its index.
      tabPage1->ImageIndex = 0;
      tabPage1->Text = "tabPage1";
      myImages->ImageStream = (dynamic_cast<ImageListStreamer^>(resources->GetObject( "myImages.ImageStream" )));
      myImages->ColorDepth = ColorDepth::Depth8Bit;
      myImages->ImageSize = System::Drawing::Size( 16, 16 );
      myImages->TransparentColor = Color::Transparent;
      this->Controls->Add( tabControl1 );
   }

};

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

using System.Drawing;
using System.ComponentModel;
using System.Windows.Forms;
using System.Resources;

public class Form1 : Form
{
    public Form1()
    {
        IContainer components = new Container();
        ResourceManager resources = new ResourceManager(typeof(Form1));
        TabControl tabControl1 = new TabControl();
        TabPage tabPage1 = new TabPage();
        ImageList myImages = new ImageList(components);

        tabControl1.Controls.Add(tabPage1);

        // Displays images from myImages on the tabs of tabControl1.
        tabControl1.ImageList = myImages;

        // Specifies which image to display (on the tab of tabPage1) by its index.
        tabPage1.ImageIndex = 0;

        tabPage1.Text = "tabPage1";

        myImages.ImageStream = ((ImageListStreamer)(resources.GetObject("myImages.ImageStream")));
        myImages.ColorDepth = ColorDepth.Depth8Bit;
        myImages.ImageSize = new Size(16, 16);
        myImages.TransparentColor = Color.Transparent;

        this.Controls.Add(tabControl1);
    }

    static void Main() 
    {
        Application.Run(new Form1());
    }
}
Imports System.Drawing
Imports System.ComponentModel
Imports System.Windows.Forms
Imports System.Resources

Public Class Form1
    Inherits Form

    Public Sub New()
        Dim components = New Container()
        Dim resources As New ResourceManager(GetType(Form1))
        Dim tabControl1 As New TabControl()
        Dim tabPage1 As New TabPage()
        Dim myImages As New ImageList(components)

        tabControl1.Controls.Add(tabPage1)

        ' Displays images from myImages on the tabs of tabControl1.
        tabControl1.ImageList = myImages

        ' Specifies which image to display (on the tab of tabPage1) by its index.
        tabPage1.ImageIndex = 0

        tabPage1.Text = "tabPage1"

        myImages.ImageStream = CType(resources.GetObject("myImages.ImageStream"), ImageListStreamer)
        myImages.ColorDepth = ColorDepth.Depth8Bit
        myImages.ImageSize = New Size(16, 16)
        myImages.TransparentColor = Color.Transparent

        Me.Controls.Add(tabControl1)
    End Sub

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

注釈

ImageIndex 、に関連付けらImageList TabControlれている内のイメージを指します。The ImageIndex points to an image in the associated ImageList of the TabControl.

適用対象

こちらもご覧ください