How to: Define an Icon for a ToolBar Button Using the Designer
The following procedure requires a Windows Application project with a form containing a ToolBar control and an ImageList component. For information about setting up such a project, see b2f93fed-c635-4705-8d0e-cf079a264efa and How to: Add Controls to Windows Forms.
The dialog boxes and menu commands you see might differ from those described in Help depending on your active settings or edition. To change your settings, choose Import and Export Settings on the Tools menu. For more information, see Customizing Development Settings in Visual Studio.
To set an icon for a toolbar button at design time
Add images to the ImageList component. For more information, see How to: Add or Remove ImageList Images with the Designer.
Select the ToolBar control on your form.
Use the Add button to add buttons to the ToolBar control.