[Quantproject-developers] QuantProject/b1_ADT/Histories History.cs, 1.12, 1.13

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

Update of /cvsroot/quantproject/QuantProject/b1_ADT/Histories
In directory sc8-pr-cvs16.sourceforge.net:/tmp/cvs-serv16813/b1_ADT/Histories

Modified Files:
	History.cs 
Log Message:
- The property FirstDateTime has been included
- The property LastDateTime has been included

Index: History.cs
===================================================================
RCS file: /cvsroot/quantproject/QuantProject/b1_ADT/Histories/History.cs,v
retrieving revision 1.12
retrieving revision 1.13
diff -C2 -d -r1.12 -r1.13
*** History.cs	26 Sep 2007 21:58:18 -0000	1.12
--- History.cs	19 Jan 2008 19:03:05 -0000	1.13
***************
*** 44,51 ****
  			get { return this.Keys; }
  		}
  		public History() : base()
  		{
  		}
!     
  		public Object GetValue( DateTime dateTime )
  		{
--- 44,81 ----
  			get { return this.Keys; }
  		}
+ 		
+ 		/// <summary>
+ 		/// The first DateTime value in the TimeLine
+ 		/// </summary>
+ 		public DateTime FirstDateTime
+ 		{
+ 			get
+ 			{
+ 				if ( this.TimeLine.Count == 0 )
+ 					throw new Exception( "This History collection is empty, " +
+ 					                    "thus FirstDateTime is meaningless!" );
+ 				return (DateTime)(this.GetKey( 0 ));
+ 			}
+ 		}
+ 
+ 		/// <summary>
+ 		/// The last DateTime value in the TimeLine
+ 		/// </summary>
+ 		public DateTime LastDateTime
+ 		{
+ 			get
+ 			{
+ 				if ( this.TimeLine.Count == 0 )
+ 					throw new Exception( "This History collection is empty, " +
+ 					                    "thus LastDateTime is meaningless!" );
+ 				int lastIndex = this.TimeLine.Count - 1;
+ 				return (DateTime)( this.GetKey( lastIndex ) );
+ 			}
+ 		}
+ 
  		public History() : base()
  		{
  		}
! 		
  		public Object GetValue( DateTime dateTime )
  		{