Checked Property (StateButtonTool)

using System.Diagnostics;
using Infragistics.Win;
using Infragistics.Win.UltraWinToolbars;

		private void button2_Click(object sender, System.EventArgs e)
		{

			// ----------------------------------------------------------------------------
			// Create a StateButton tool.
			StateButtonTool stateButtonAlignLeft	= new StateButtonTool("AlignLeft");
			StateButtonTool stateButtonAlignCenter	= new StateButtonTool("AlignCenter");
			StateButtonTool stateButtonAlignRight	= new StateButtonTool("AlignRight");


			// Always add new tools to the UltraToolbarManager's root tools collection
			// before adding them to menus or toolbars.
			this.ultraToolbarsManager1.Tools.AddRange(new ToolBase [] {stateButtonAlignLeft, stateButtonAlignCenter, stateButtonAlignRight} );


			// Specify images for the buttons
			stateButtonAlignLeft.SharedProps.AppearancesSmall.Appearance.Image	 = Bitmap.FromHicon(SystemIcons.Information.Handle);
			stateButtonAlignCenter.SharedProps.AppearancesSmall.Appearance.Image = Bitmap.FromHicon(SystemIcons.Exclamation.Handle);
			stateButtonAlignRight.SharedProps.AppearancesSmall.Appearance.Image  = Bitmap.FromHicon(SystemIcons.WinLogo.Handle);


			// Set the menu display style for the buttons to display an image.
			stateButtonAlignLeft.MenuDisplayStyle	= StateButtonMenuDisplayStyle.DisplayToolImage;
			stateButtonAlignCenter.MenuDisplayStyle = StateButtonMenuDisplayStyle.DisplayToolImage;
			stateButtonAlignRight.MenuDisplayStyle	= StateButtonMenuDisplayStyle.DisplayToolImage;


			// ----------------------------------------------------------------------------
			// Create an OptionSet object to coordinate the state (i.e., Checked or not Checked)
			// of the 3 state buttons.  
			int index = this.ultraToolbarsManager1.OptionSets.Add(false, "MyAlignOptionSet");


			// Add the 3 state buttons to the option set.
			this.ultraToolbarsManager1.OptionSets[index].Tools.AddToolRange( new string [] {"AlignLeft", "AlignCenter", "AlignRight"} );


			// ----------------------------------------------------------------------------
			// Check the 'AlignLeft' button.
			stateButtonAlignLeft.Checked = true;


			// ----------------------------------------------------------------------------
			// Create a toolbar and add the state buttons to it.
			this.ultraToolbarsManager1.Toolbars.AddToolbar("MyAlignmentToolbar");

				// Dock the toolbar to the bottom of the form.
				this.ultraToolbarsManager1.Toolbars["MyAlignmentToolbar"].DockedPosition = DockedPosition.Bottom;

				// Add the state buttons to the toolbar.
				this.ultraToolbarsManager1.Toolbars["MyAlignmentToolbar"].Tools.AddToolRange(new string [] {"AlignLeft", "AlignCenter", "AlignRight"});


			// Place a separator in front of the first button by setting its 'IsFirstInGroup' property.
			this.ultraToolbarsManager1.Toolbars["MyAlignmentToolbar"].Tools["AlignLeft"].InstanceProps.IsFirstInGroup = true;

		}