[Quantproject-developers] QuantProject/b4_Business/a2_Strategies/Eligibles EligibleTickers.cs, NONE, 1.1

[Glauco S. <gla...@us...>]

Update of /cvsroot/quantproject/QuantProject/b4_Business/a2_Strategies/Eligibles
In directory sc8-pr-cvs16.sourceforge.net:/tmp/cvs-serv13445/b4_Business/a2_Strategies/Eligibles

Added Files:
	EligibleTickers.cs 
Log Message:
Strongly typed collection of tickers

--- NEW FILE: EligibleTickers.cs ---
/*
QuantProject - Quantitative Finance Library

EligibleTickers.cs
Copyright (C) 2007
Glauco Siliprandi

This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
*/

using System;
using System.Data;

namespace QuantProject.Business.Strategies.Eligibles
{
	/// <summary>
	/// Strongly typed collection of tickers
	/// </summary>
	public class EligibleTickers : System.Collections.CollectionBase
	{
		/// <summary>
		/// 
		/// </summary>
		/// <param name="dtTickers">DataTable in the form returned by
		/// a ticker selector</param>
		public EligibleTickers( DataTable dtTickers )
		{
			this.addTickers( dtTickers );
		}
		#region addTickers
		private void checkParameter( DataRow dataRow )
		{
			if ( !( dataRow[ 0 ] is string ) )
				throw new Exception( "The datatable of eligible tickers is " +
				                    "expected to have a single element in each " +
				                    "DataRow and that element should be a string" );			
		}
		private void addTicker_actually( string ticker )
		{
			this.List.Add( ticker );
		}
		private void addTicker( DataRow dataRow )
		{
			this.checkParameter( dataRow );
			this.addTicker_actually( (string)dataRow[ 0 ] );
		}		private void addTickers( DataTable dtTickers )
		{
			foreach ( DataRow dataRow in dtTickers.Rows )
				this.addTicker( dataRow );
		}
		#endregion addTickers
		public string this[ int index ]  
		{
			get  
			{
				return( (string) this.List[ index ] );
			}
			set
			{
//				if ( !(value is string) )
//					throw new Exception( "You are trying to add " +
//						"a ticker that is not a string !!" );
				this.List[ index ] = value;
			}
		}
	}
}