Developing Next Generation Smart Clients using .NET 2.0 working with Existing .NET 1.1 SOA-based XML Web Services

#region Using directives

using System;
using System.Collections.Generic;
using System.Text;
using System.Windows.Forms;

#endregion

namespace SmartInstitute.Client.Automation.Documents
{
	public class DocumentUIBase : UserControl		
	{
		private DocumentBase _Document;

		public DocumentBase Document
		{
			get 
			{
				// Check if this UI has its own document. If not, then check if it's parent is 
				// a Document UI. If it is then return its document, otherwise throw exception
				if (null == this._Document)
				{
					Control myParent = base.Parent;
					while (myParent != null)
					{
						if (myParent is DocumentUIBase)
							return (myParent as DocumentUIBase).Document;

						myParent = myParent.Parent;
					}
                    return null;
                    //throw new ApplicationException("No Document set for this document UI");
				}
				else
				{
					return this._Document;
				}
			}
			set { this._Document = value; }
		}

		internal virtual bool AcceptData(object data)
		{
			return false;
		}
	}
}