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ToolBarButton.ImageIndex Property

Gets or sets the index value of the image assigned to the button.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

[TypeConverterAttribute(typeof(ImageIndexConverter))]
public int ImageIndex { get; set; }

Property Value

Type: System.Int32
The index value of the Image assigned to the toolbar button. The default is -1.

ExceptionCondition
ArgumentException

The assigned value is less than -1.

The ImageIndex value references the indexed value of the images in an ImageList assigned to the parent ToolBar control.

The following code example creates a ToolBar and three ToolBarButton controls, assigns the buttons to the toolbar, and sets some of the buttons' common properties. This code requires that a MenuItem, ImageList, ToolTip and a Form have been created and the ImageList has at least one Image assigned to it.


public void InitializeMyToolBar()
 {
    // Create the ToolBar, ToolBarButton controls, and menus.
    ToolBarButton toolBarButton1 = new ToolBarButton("Open");
    ToolBarButton toolBarButton2 = new ToolBarButton();
    ToolBarButton toolBarButton3 = new ToolBarButton();
    ToolBar toolBar1 = new ToolBar();
    MenuItem menuItem1 = new MenuItem("Print");
    ContextMenu contextMenu1 = new ContextMenu(new MenuItem[]{menuItem1});


    // Add the ToolBarButton controls to the ToolBar.
    toolBar1.Buttons.Add(toolBarButton1);
    toolBar1.Buttons.Add(toolBarButton2);
    toolBar1.Buttons.Add(toolBarButton3);

    // Assign an ImageList to the ToolBar and show ToolTips.
    toolBar1.ImageList = imageList1;
    toolBar1.ShowToolTips = true;

    /* Assign ImageIndex, ContextMenu, Text, ToolTip, and 
       Style properties of the ToolBarButton controls. */
    toolBarButton2.Style = ToolBarButtonStyle.Separator;
    toolBarButton3.Text = "Print";
    toolBarButton3.Style = ToolBarButtonStyle.DropDownButton;
    toolBarButton3.ToolTipText = "Print";
    toolBarButton3.ImageIndex = 0;
    toolBarButton3.DropDownMenu = contextMenu1;

    // Add the ToolBar to a form.
    Controls.Add(toolBar1);
 }
 


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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