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Designer centric Wizard control

, 15 Dec 2004 Ms-PL
A Wizard control designed for design time development.
using System;
using System.Windows.Forms.Design;
using System.ComponentModel.Design;


namespace Gui.Wizard
{
	/// <summary>
	/// Summary description for WizardPageDesigner.
	/// </summary>
	public class WizardPageDesigner : ParentControlDesigner
	{
	
	
		public override DesignerVerbCollection Verbs
		{
			get
			{
				DesignerVerbCollection verbs = new DesignerVerbCollection();
				verbs.Add(new DesignerVerb("Remove Page", new EventHandler(handleRemovePage)));

				return verbs;
			}
		}

		private void handleRemovePage(object sender, EventArgs e)
		{			
			WizardPage page = this.Control as WizardPage;

			IDesignerHost h  = (IDesignerHost) GetService(typeof(IDesignerHost));
			IComponentChangeService c = (IComponentChangeService) GetService(typeof (IComponentChangeService));

			DesignerTransaction dt = h.CreateTransaction("Remove Page");
			
			if (page.Parent is Wizard)
			{
				Wizard wiz = page.Parent as Wizard;

				c.OnComponentChanging(wiz, null);
				//Drop from wizard
				wiz.Pages.Remove(page);
				wiz.Controls.Remove(page);
				c.OnComponentChanged(wiz, null, null, null);
				h.DestroyComponent(page);
			}
			else
			{
				c.OnComponentChanging(page, null);
				//Mark for destruction
				page.Dispose();
				c.OnComponentChanged(page, null, null, null);
			}
			dt.Commit();
		}

	}
}

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License

This article, along with any associated source code and files, is licensed under The Microsoft Public License (Ms-PL)

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About the Author

Al Gardner
Software Developer (Senior)
United Kingdom United Kingdom
** Apologies but my daughter was born in October 2004, and so coding now comes second. My reponses tend to take a lot longer**
 
I've been coding since I got my first ZX Spectrum. From Basic to assembly, through C,C++ and arriving at C#. On the way I've throughly enjoyed Perl, Lisp and XML.
 
I find I can make the intellectual leap to understand the problem, I love big picture designs, patterns and reuse. I may be addicted to abstract classes Smile | :) GOF has a lot to answer for. I miss delete() even though I spent too much time finding the leaks.
 
My favourite part of coding is in UI design because of the complexity, the event driven nature, and the fact its (virtually) tactile. I hate GUI's that don't follow system guidelines, don't resize, and don't display properly when you change system colour and font.

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