C# Time Class using MySQL

http://www.csharphelp.com/2007/09/c-time-class/

  1 /*
  2  datatypes.
  3 
  4 Time class is writen in C# and .NET 2.0.
  5 
  6 Time class explantation.
  7 
  8 This is simple class and is not much to explain.
  9 
 10 1.Public fields: 
 11 .public int Hour, 
 12 .public int Minute and 
 13 .public int Second. 
 14 .public const char TIME_SEPERATOR = ':'
 15 
 16 2.Constructors:
 17 .current system time (public Time()), 
 18 .from string value (public Time(string value)), 
 19 .from parameters (public Time(int hour, int minute, int second)) and 
 20 .from seconds (public Time(int seconds)).
 21 
 22 3.
 23 Public method Add:
 24 
 25 Example 1:
 26 
 27 InDoc.Systems.Time time1 = new InDoc.Systems.Time("12:00:55");
 28 // calculate 12:00:55 + 14:55:20 
 29 time1.Add("14:55:20");
 30 // result: 26:56:15
 31 
 32 4. To addition two times you can use + and to subtraction you can use -.
 33 Example 2:
 34 
 35 InDoc.Systems.Time time1 = new InDoc.Systems.Time("12:00:55") + 
 36 new InDoc.Systems.Time("14:55:20");
 37 // result: 26:56:15
 38 
 39 InDoc.Systems.Time time2 = new InDoc.Systems.Time("14:55:20") . 
 40 new InDoc.Systems.Time("12:00:55");
 41 // result: 02:54:25
 42 
 43 5. We have some convert methods:
 44 
 45 .public int ToSeconds(),
 46 .public override string ToString()
 47 
 48 and static method that convert secontd to Time object:
 49 .public static Time GetTimeFromSeconds(int seconds).
 50  */
 51 
 52 
 53 using System;
 54 using System.Collections.Generic;
 55 using System.Linq;
 56 using System.Text;
 57 
 58 namespace MysqlBig
 59 {
 60 
 61     /// <summary>
 62     /// 
 63     /// </summary>
 64     public class Time
 65     {
 66         #region Public constants
 67 
 68         public const char TIME_SEPERATOR = ':';
 69 
 70         #endregion
 71 
 72         #region Declarations
 73 
 74         public int Hour;
 75         public int Minute;
 76         public int Second;
 77 
 78         #endregion
 79 
 80         #region Constructors
 81 
 82         /// <summary>
 83         /// Create time object from current system time.
 84         /// </summary>
 85         public Time()
 86         {
 87             Hour = DateTime.Now.Hour;
 88             Minute = DateTime.Now.Minute;
 89             Second = DateTime.Now.Second;
 90         }
 91 
 92         /// <summary>
 93         /// Create time object from string value must be seperated as TIME_SEPERATOR constant.
 94         /// </summary>
 95         /// <param name="value"></param>
 96         public Time(string value)
 97         {
 98             string[] vals = value.Split(TIME_SEPERATOR); //new char[] { ':' });
 99             Hour = int.Parse(vals[0]);
100             Minute = int.Parse(vals[1]);
101 
102             if (vals.Length > 2)
103                 Second = int.Parse(vals[2]);
104 
105             new Time(this.ToSeconds());
106         }
107 
108         /// <summary>
109         /// Create time object from parameters hour, minute and seconds.
110         /// </summary>
111         /// <param name="hour"></param>
112         /// <param name="minute"></param>
113         /// <param name="second"></param>
114         public Time(int hour, int minute, int second)
115         {
116             Hour = hour;
117             Minute = minute;
118             Second = second;
119             new Time(this.ToSeconds());
120         }
121 
122         /// <summary>
123         /// Create time object from seconds.
124         /// </summary>
125         /// <param name="seconds"></param>
126         public Time(int seconds)
127         {
128             Minute = seconds / 60;
129             Second = seconds % 60;
130 
131             Hour = Minute / 60;
132             Minute = Minute % 60;
133         }
134 
135         #endregion
136 
137         #region Public methods
138 
139         /// <summary>
140         /// Add new time object and addition (+) it to previus time object.
141         /// </summary>
142         /// <param name="time"></param>
143         /// <returns></returns>
144         public Time Add(Time time)
145         {
146             this.Hour += time.Hour;
147             this.Minute += time.Minute;
148             this.Second += time.Second;
149 
150             return new Time(GetStringTime(this.ToSeconds()));
151         }
152 
153         /// <summary>
154         /// Add new string value and addition (+) it to previus time object.
155         /// </summary>
156         /// <param name="value"></param>
157         /// <returns></returns>
158         public Time Add(string value)
159         {
160             return Add(new Time(value));
161         }
162 
163         #endregion
164 
165         #region Public static methods
166 
167         /// <summary>
168         /// Get current system time.
169         /// </summary>
170         /// <returns></returns>
171         public static Time Now()
172         {
173             DateTime dt = DateTime.Now;
174             return GetTimeFromSeconds(ToSeconds(dt));
175         }
176 
177         /// <summary>
178         /// Calculate time difference between two time objects.
179         /// </summary>
180         /// <param name="time1"></param>
181         /// <param name="time2"></param>
182         /// <returns></returns>
183         public static Time TimeDiff(Time time1, Time time2)
184         {
185             try
186             {
187                 int _secs1 = time1.ToSeconds();
188                 int _secs2 = time2.ToSeconds();
189 
190                 int _secs = _secs1 - _secs2;
191 
192                 return GetTimeFromSeconds(_secs);
193             }
194             catch
195             {
196                 return new Time(0, 0, 0);
197             }
198 
199         }
200 
201         /// <summary>
202         /// Calculate time difference between two string values.
203         /// </summary>
204         /// <param name="time1"></param>
205         /// <param name="time2"></param>
206         /// <returns></returns>
207         public static Time TimeDiff(string time1, string time2)
208         {
209             try
210             {
211                 Time t1 = new Time(time1);
212                 Time t2 = new Time(time2);
213                 return TimeDiff(t1, t2);
214             }
215             catch
216             {
217                 return new Time(0, 0, 0);
218             }
219         }
220 
221         /// <summary>
222         /// Calculate time difference between two DateTime objects.
223         /// </summary>
224         /// <param name="dateTime1"></param>
225         /// <param name="dateTime2"></param>
226         /// <returns></returns>
227         public static Time TimeDiff(DateTime dateTime1, DateTime dateTime2)
228         {
229             try
230             {
231                 TimeSpan span = dateTime1 - dateTime2;
232                 return new Time(span.Seconds);
233             }
234             catch
235             {
236                 return new Time(0, 0, 0);
237             }
238         }
239 
240         /// <summary>
241         /// Calculate time difference between two second values.
242         /// </summary>
243         /// <param name="seconds1"></param>
244         /// <param name="seconds2"></param>
245         /// <returns></returns>
246         public static Time TimeDiff(int seconds1, int seconds2)
247         {
248             try
249             {
250                 Time t1 = new Time(seconds1);
251                 Time t2 = new Time(seconds2);
252                 return TimeDiff(t1, t2);
253             }
254             catch
255             {
256                 return new Time(0, 0, 0);
257             }
258         }
259 
260         #endregion
261 
262         #region Convert methods
263 
264         /// <summary>
265         /// Convert current time object to seconds.
266         /// </summary>
267         /// <returns></returns>
268         public int ToSeconds()
269         {
270             return this.Hour * 3600 + this.Minute * 60 + this.Second;
271         }
272 
273         /// <summary>
274         /// Convert DateTime object to seconds.
275         /// </summary>
276         /// <param name="dateTime"></param>
277         /// <returns></returns>
278         public static int ToSeconds(DateTime dateTime)
279         {
280             return dateTime.Hour * 3600 + dateTime.Minute * 60 + dateTime.Second;
281         }
282 
283         /// <summary>
284         /// Convert current time object to string.
285         /// </summary>
286         /// <returns></returns>
287         public override string ToString()
288         {
289             return String.Format("{0:00}:{1:00}:{2:00}", Hour, Minute, Second);
290         }
291 
292         /// <summary>
293         /// Convert seconds to time object.
294         /// </summary>
295         /// <param name="seconds"></param>
296         /// <returns></returns>
297         public static Time GetTimeFromSeconds(int seconds)
298         {
299             int _mins = seconds / 60;
300             seconds = seconds % 60;
301 
302             int _hours = _mins / 60;
303             _mins = _mins % 60;
304 
305             return new Time(_hours, _mins, seconds);
306         }
307 
308 
309         /// <summary>
310         /// Convert seconds to string time.
311         /// </summary>
312         /// <param name="seconds"></param>
313         /// <returns></returns>
314         private string GetStringTime(int seconds)
315         {
316             int _mins = seconds / 60;
317             seconds = seconds % 60;
318 
319             int _hours = _mins / 60;
320             _mins = _mins % 60;
321 
322             this.Hour = _hours;
323             this.Minute = _mins;
324             this.Second = seconds;
325 
326             return String.Format("{0:00}:{1:00}:{2:00}", _hours, _mins, seconds); ;
327         }
328 
329         /// <summary>
330         /// Parse string to time.
331         /// </summary>
332         /// <param name="value"></param>
333         /// <returns></returns>
334         public static Time Parse(string value)
335         {
336             try
337             {
338                 return new Time(value);
339             }
340             catch
341             {
342                 throw new ApplicationException("Error parsing time!");
343             }
344         }
345 
346         #endregion
347 
348         #region Subtract time objects
349 
350         public static Time operator +(Time t1, Time t2)
351         {
352             Time t3 = new Time(t1.Hour, t1.Minute, t1.Second);
353             t3.Add(t2);
354             return t3;
355         }
356 
357         public static Time operator -(Time t1, Time t2)
358         {
359             return TimeDiff(t1, t2);
360         }
361 
362         #endregion
363     }
364 }

用法：

 /// <summary>
    /// 
    /// </summary>
    public class AttendrecordInfo
    {

        int _Seq;

        public int Seq
        {
            set { _Seq = value; }
            get { return _Seq; }
        }
        string _Emp_no;

        public string Emp_no
        {
            set { _Emp_no = value; }
            get { return _Emp_no; }
        }

        DateTime _Rdate;

        public DateTime Rdate
        {
            set { _Rdate = value; }
            get { return _Rdate; }
        }

        Time _Ttime;

        public Time Ttime
        {
            set { _Ttime = value; }
            get { return _Ttime; }
        }
        string _Rdescription;

        public string Rdescription
        {
            set { _Rdescription = value; }
            get { return _Rdescription; }
        }
        string _Rdes_reasnon;

        public string Rdes_reasnon
        {
            set { _Rdes_reasnon = value; }
            get { return _Rdes_reasnon; }
        }

        string _Branch;

        public string Branch
        {
            set { _Branch = value; }
            get { return _Branch; }
        }


    }

      /// <summary>
        /// 
        /// </summary>
        /// <param name="seq"></param>
        /// <returns></returns>
        public AttendrecordInfo SelectAttendrecord(int seq)
        {
            AttendrecordInfo attendrecord = null;
            try
            {
                MySqlParameter par = new MySqlParameter("?param1", MySqlDbType.Int32, 5);
                par.Value = seq;
                using (MySqlDataReader reader = MySqlHelpDu.GetReader("proc_Select_attendrecord", CommandType.StoredProcedure, par))
                {
                    if (reader.Read())
                    {
                        attendrecord = new AttendrecordInfo();
                        attendrecord.Seq = (!object.Equals(reader["seq"], null)) ? (int)reader["seq"] : 0;
                        attendrecord.Branch = (!object.Equals(reader["branch"], null)) ? (string)reader["branch"] : "";
                        attendrecord.Emp_no = (!object.Equals(reader["emp_no"], null)) ? (string)reader["emp_no"] : "";
                        attendrecord.Rdate = (!object.Equals(reader["rdate"], null)) ? DateTime.Parse(reader["rdate"].ToString()): DateTime.Now;
                        attendrecord.Ttime = (!object.Equals(reader["rtime"], null)) ? Time.Parse(reader["rtime"].ToString()): Time.Now();
                        attendrecord.Rdes_reasnon = (!object.Equals(reader["rdes_reasnon"], null)) ? (string)reader["rdes_reasnon"] : "";
                        attendrecord.Rdescription = (!object.Equals(reader["rdescription"], null)) ? (string)reader["rdescription"] : "";


                    }
                }
            }
            catch (MySqlException ex)
            {
                throw ex;
            }
            return attendrecord;
        }

Mysql 表：

 1 create table attendrecord
 2 (
 3     seq  INT NOT NULL PRIMARY KEY AUTO_INCREMENT,
 4     emp_no varchar(20) null,
 5     rdate datetime not null,
 6     rtime time not null,
 7     rdescription varchar(100),
 8     rdes_reasnon varchar(100),
 9     branch varchar(50)
10 );
11 
12 insert into attendrecord(emp_no,rdate,rtime,rdescription,rdes_reasnon,branch) values('L00094','2015-03-10','10:45','geovindu','du','sz');