Source/Design/NavigationBarDesigner.cs

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using System;
using System.Windows.Forms;
using System.Windows.Forms.Design;
using System.Collections;
using System.Drawing;
using System.ComponentModel.Design;
using System.ComponentModel;
using System.ComponentModel.Design.Serialization;
using System.CodeDom;

namespace DevComponents.DotNetBar.Design
{
	/// <summary>
	/// Provides design time support for NavigationBar control.
	/// </summary>
	public class NavigationBarDesigner:BarBaseControlDesigner
	{
		/// <summary>
		/// Default constructor
		/// </summary>
		public NavigationBarDesigner()
		{
			this.EnableItemDragDrop=false;
		}

		public override DesignerVerbCollection Verbs 
		{
			get 
			{
				DesignerVerb[] verbs;
				verbs = new DesignerVerb[]
				{
					new DesignerVerb("Create New Button", new EventHandler(CreateNewButton)),
				};
				return new DesignerVerbCollection(verbs);
			}
		}
		private void CreateNewButton(object sender, EventArgs e)
		{
			IDesignerHost dh=(IDesignerHost)GetService(typeof(IDesignerHost));
			NavigationBar navbar=this.Control as NavigationBar;
			if(navbar==null || dh==null)
				return;

            DesignerTransaction dt = dh.CreateTransaction();
            try
            {
                IComponentChangeService change = this.GetService(typeof(IComponentChangeService)) as IComponentChangeService;
                if (change != null)
                    change.OnComponentChanging(this.Component, null);
                ButtonItem item = null;
                try
                {
                    m_CreatingItem = true;
                    item = dh.CreateComponent(typeof(ButtonItem)) as ButtonItem;
                    item.Text = item.Name;
                    item.OptionGroup = "navBar";
                    item.Image = BarFunctions.LoadBitmap("SystemImages.DefaultNavBarImage.png");
                    navbar.Items.Add(item);
                }