ASP.NET Ajax Controls to Simulate IFrame

using System;
using System.Collections.Generic;
using System.Text;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.ComponentModel;

namespace Symber.Web.APX
{
	[ParseChildren(true)]
	[PersistChildren(false)]
	public class APXAccordionPane : WebControl
	{
		#region [ Fields ]

		private APXAccordionContentPanel _header;
		private APXAccordionContentPanel _content;
		private ITemplate _headerTemplate;
		private ITemplate _contentTemplate;

		#endregion

		#region [ Properties ]

		[Browsable(false)]
		[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
		public APXAccordionContentPanel HeaderContainer
		{
			get
			{
				EnsureChildControls();
				return _header;
			}
		}

		[Browsable(true)]
		[Category("Appearance")]
		[Description("CSS class for Accordion Pane Header")]
		public string HeaderCssClass
		{
			get
			{
				EnsureChildControls();
				return _header.CssClass;
			}
			set
			{
				EnsureChildControls();
				_header.CssClass = value;
			}
		}

		[Browsable(false)]
		[DefaultValue(null)]
		[Description("Accordion Pane Header")]
		[PersistenceMode(PersistenceMode.InnerProperty)]
		[TemplateContainer(typeof(APXAccordionContentPanel))]
		[TemplateInstance(TemplateInstance.Single)]
		public virtual ITemplate Header
		{
			get { return _headerTemplate; }
			set { _headerTemplate = value; }
		}

		[Browsable(false)]
		[DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
		public APXAccordionContentPanel ContentContainer
		{
			get
			{
				EnsureChildControls();
				return _content;
			}
		}

		[Browsable(true)]
		[Category("Appearance")]
		[Description("CSS class for Accordion Pane Content")]
		public string ContentCssClass
		{
			get
			{
				EnsureChildControls();
				return _content.CssClass;
			}
			set
			{
				EnsureChildControls();
				_content.CssClass = value;
			}
		}

		[Browsable(false)]
		[DefaultValue(null)]
		[Description("Accordion Pane Content")]
		[PersistenceMode(PersistenceMode.InnerProperty)]
		[TemplateContainer(typeof(APXAccordionContentPanel))]
		[TemplateInstance(TemplateInstance.Single)]
		public virtual ITemplate Content
		{
			get { return _contentTemplate; }
			set { _contentTemplate = value; }
		}

		#endregion

		#region [ Override Implementation of WebControl ]

		public override ControlCollection Controls
		{
			get
			{
				EnsureChildControls();
				return base.Controls;
			}
		}

		protected override void CreateChildControls()
		{
			// Create the controls
			Controls.Clear();
			Controls.Add(_header = new APXAccordionContentPanel(null, -1, APXAccordionItemType.Header));
			Controls.Add(_content = new APXAccordionContentPanel(null, -1, APXAccordionItemType.Content));

			// By default, collapse the content sections so the
			// page loads without flicker (the selected section
			// will be expanded again in the parent Accordion's
			// OnPreRender)
			_content.Collapsed = true;

			// Load the templates into the controls
			if (_headerTemplate != null)
				_headerTemplate.InstantiateIn(_header);
			if (_contentTemplate != null)
				_contentTemplate.InstantiateIn(_content);
		}

		public override Control FindControl(string id)
		{
			EnsureChildControls();
			return base.FindControl(id) ?? _header.FindControl(id) ?? _content.FindControl(id);
		}

		public override void RenderBeginTag(HtmlTextWriter writer)
		{
			// Do not call base.RenderBeginTag...
		}

		public override void RenderEndTag(HtmlTextWriter writer)
		{
			// Do not call base.RenderEndTag...
		}

		#endregion
	}
}