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Posted 6 Aug 2007

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Seagate Date Code Calculator

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4.22 (9 votes)
6 Aug 2007CPOL
How to get the date 20 November 2005 from the number 06212

Screenshot - SeagateDateCode.jpg

Introduction

The code described in this article helps users convert Seagate's (the hard drive manufacture) date code to a DateTime value.

This article is based on this documentation.

Background

I had to check some hard drives for warranty, and found myself checking very old hard drives.

The code

Here is the actual code involved:

Class Variables

private DateTime datecalc;
private string _datecode;

Class Properties

public string DateCode
{
    get { return _datecode; }
    set 
    {
        int _CodeYear = 0;
        byte _CodeWeek = 0;
        byte _CodeDayOfWeek = 0;
        _datecode = value;
        if (_datecode.Length == 5)
        {
            //Get the number of weeks to add
            _CodeWeek = Convert.ToByte(_datecode.Substring(2, 2));
            //Get the day of the week in the final week
            _CodeDayOfWeek = Convert.ToByte(_datecode.Substring(4));
        }
        else if (_datecode.Length == 4)
        {
            //Get the number of weeks to add
            _CodeWeek = Convert.ToByte(_datecode.Substring(2, 1));
            //Get the day of the week in the final week
            _CodeDayOfWeek = Convert.ToByte(_datecode.Substring(3));
        }
        if (_datecode.Length == 4 || _datecode.Length == 5)
        {
            _CodeWeek--;
            _CodeDayOfWeek--;
            _CodeYear = (2000 + Convert.ToInt32(_datecode.Substring(0, 2)) - 1);
            datecalc = new DateTime(_CodeYear, 7, 1);
            datecalc.AddDays(-1);
            do { datecalc = datecalc.AddDays(1); } 
            while (datecalc.DayOfWeek != DayOfWeek.Saturday);
            datecalc = datecalc.AddDays((_CodeWeek * 7) + _CodeDayOfWeek);
        }
    }
}

public DateTime CalculatedDate
{
    get { return datecalc; }
}

Class Constructors

public SeagateDateCodeCalc()
{

}
public SeagateDateCodeCalc(string dateCode)
{
    this.DateCode = dateCode;
}

History

This is my first submission here, so let me know if I am missing anything.

License

This article, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

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Comments and Discussions

 
QuestionThank You! Pin
Jason Bradley Smith13-Nov-14 14:24
professionalJason Bradley Smith13-Nov-14 14:24 
AnswerRe: Thank You! Pin
Paw Jershauge19-Nov-14 5:08
MemberPaw Jershauge19-Nov-14 5:08 
GeneralRunning the prog Pin
gimmegimme8-Oct-08 11:00
Membergimmegimme8-Oct-08 11:00 
GeneralRe: Running the prog Pin
Paw Jershauge9-Oct-08 2:42
MemberPaw Jershauge9-Oct-08 2:42 
GeneralRe: Running the prog Pin
icefloe018-Jan-09 4:37
Membericefloe018-Jan-09 4:37 
GeneralRe: Running the prog Pin
Paw Jershauge8-Jan-09 10:14
MemberPaw Jershauge8-Jan-09 10:14 
GeneralRe: Running the prog Pin
icefloe018-Jan-09 11:40
Membericefloe018-Jan-09 11:40 
GeneralRe: Running the prog Pin
Knight of Cydonia11-Jan-09 12:37
MemberKnight of Cydonia11-Jan-09 12:37 
GeneralRe: Running the prog Pin
Paw Jershauge11-Jan-09 23:47
MemberPaw Jershauge11-Jan-09 23:47 
GeneralRe: Running the prog Pin
Knight of Cydonia12-Jan-09 8:29
MemberKnight of Cydonia12-Jan-09 8:29 

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