C# DateTime.Add方法代码示例

        public void GenerateNextEntrance(DateTime currentTime)
        {
            TimeSpan timeBetweenTwoEnter = TimeSpan.FromMinutes(Math.Round(RandomEngine.GetExpo(12))); // Const

            if (World.Instance != null)
            {
                if (World.Instance.MnuChkFastEntrance.IsChecked)
                {
                    while (timeBetweenTwoEnter.TotalMinutes > 30)
                    {
                        timeBetweenTwoEnter = TimeSpan.FromMinutes(Math.Round(RandomEngine.GetExpo(12)));
                    }
                }
            }

            DateTime entraneTime = currentTime.Add(timeBetweenTwoEnter);
            if (entraneTime > EndTime)
            {
                //NO More Entrance!
            }
            else
            {
                EventList.Add(new FutureEvent(Events.Arrival, currentTime.Add(timeBetweenTwoEnter)));
            }
        }

        public bool IsRoomAvailable(Guid eventId, Room room, DateTime start, DateTime end)
        {
            if (room.EndTime < room.StartTime)
            {
                if (room.EndTime < room.StartTime)
                {
                    if ((new TimeSpan(start.Hour, start.Minute, 0)).Ticks < (new TimeSpan(room.StartTime.Hours, room.StartTime.Minutes, room.StartTime.Seconds)).Ticks)
                        start = start.AddDays(1);
                    if ((new TimeSpan(end.Hour, end.Minute, 0)).Ticks < (new TimeSpan(room.StartTime.Hours, room.StartTime.Minutes, room.StartTime.Seconds)).Ticks)
                        end = end.AddDays(1);
                }
            }

            var isEventRoomBooked = BookedRooms.Where(x => !x.EventRoom.Event.IsDeleted && x.EventRoom.EventID != eventId && x.EventRoom.RoomID == room.ID).Any(x => IsDateBetweenAnotherTwo(start, end, x.StartTimeEx)
                || IsDateBetweenAnotherTwo(x.StartTimeEx, x.EndTimeEx, start) || IsDateBetweenAnotherTwo(x.StartTimeEx, x.EndTimeEx, end.Add(new TimeSpan(0, 0, -1, 0)))
                            || IsDateBetweenAnotherTwo(start, end, x.EndTimeEx.Add(new TimeSpan(0, 0, -1, 0))));

            var isEventCateringBooked = BookedCaterings.Where(x => !x.EventCatering.Event.IsDeleted && x.EventCatering.EventID != eventId && x.EventCatering.RoomID == room.ID).Any(x => IsDateBetweenAnotherTwo(start, end, x.StartTimeEx)
                || IsDateBetweenAnotherTwo(x.StartTimeEx, x.EndTimeEx, start) || IsDateBetweenAnotherTwo(x.StartTimeEx, x.EndTimeEx, end.Add(new TimeSpan(0, 0, -1, 0)))
                || IsDateBetweenAnotherTwo(start, end, x.EndTimeEx.Add(new TimeSpan(0, 0, -1, 0))));

            var isRoomBooked = isEventRoomBooked || isEventCateringBooked;

            return !isRoomBooked;
        }

        internal override async Task StartPing()
        {
            _lastActivity = DateTime.Now.Add(_pingTimeout);
            _pingInterval = TimeSpan.FromMilliseconds(Math.Max(500, _pingTimeout.TotalMilliseconds / 2));

            while (_connection.IsConnected)
            {
                await Task.Delay(_pingInterval).ConfigureAwait(false);

                try
                {
                    var now = DateTime.Now;

                    if (_lastActivity.Add(_pingTimeout) < now)
                    {
                        _connection.Close(WebSocketCloseReasons.GoingAway);
                    }
                    else if (_lastActivity.Add(_pingInterval) < now)
                    {
                        _connection.WriteInternal(_pingBuffer, 0, true, false, WebSocketFrameOption.Ping, WebSocketExtensionFlags.None);
                    }
                }
                catch(Exception ex)
                {
                    DebugLog.Fail("BandwidthSavingPing.StartPing", ex);
                    _connection.Close(WebSocketCloseReasons.ProtocolError);
                }
            }

        }

		protected override async Task FillGuide(DateTime date) {
			Queue<TimeSpan> newsQueue=new Queue<TimeSpan>(5); TimeSpan previousTime=new TimeSpan(-1);
			foreach (Match match in broadcastRx.Matches(
				await client.DownloadStringTaskAsync(string.Concat("http://echo.msk.ru/schedule/", date.ToString(@"yyyy\-MM\-dd"), ".html")))) {
				GroupCollection groups=match.Groups;
				string title=htmlRx.Replace(groups["title"].Success ? groups["title"].Value:groups["notice"].Value, string.Empty);
				Match newsMatch=newsRx.Match(title);
				if (newsMatch.Success) {
					newsQueue.Clear();
					title=newsMatch.Groups["caption"].Value;
					foreach (Capture cap in newsMatch.Groups["time"].Captures)
						newsQueue.Enqueue(TimeSpan.Parse(cap.Value.Substring(0, 5))); // Substring lai atstātu tikai laiku.
				}

				var sb=new StringBuilder();
				if (groups["title"].Success && groups["notice"].Value.Length != 0) sb.Append(groups["notice"].Value);
				AddPeople("guests", "Гость ", "Гости ", sb, groups);
				AddPeople("presenters", "Ведущий ", "Ведущие ", sb, groups);

				TimeSpan time=TimeSpan.Parse(groups["time"].Value);
				while (newsQueue.Count != 0 && time >= newsQueue.Peek()) {
					TimeSpan newsTime=newsQueue.Dequeue();
					if (time != newsTime) AddBroadcast(date.Add(newsTime), "Новости", null, null);
				}
				if (time == previousTime) continue;
				AddBroadcast(date.Add(time),
					quoteRx.Replace(title.Replace("&quot;", "\""), "«$1»"),
					sb.Length != 0 ? sb.ToString():null,
					groups["url"].Success ? groups["url"].Value:null);
				previousTime=time;
			}
		}

        //Id des blocs en mémoires
        public GrilleHoraire(Graphics grfx, Loader loader, DateTime date)
        {
            gfx = grfx;
            this.loader = loader;
            //DateTime renvoyer par la fonction getweekrange()
            laDate = date;

            //DateTime et une addition de timespan
            DateTime lundi = laDate;
            DateTime mardi = laDate.Add(new TimeSpan(24, 0, 0));
            DateTime mercredi = laDate.Add(new TimeSpan(48, 0, 0));
            DateTime jeudi = laDate.Add(new TimeSpan(72, 0, 0));
            DateTime vendredi = laDate.Add(new TimeSpan(96, 0, 0));
            DateTime samedi = laDate.Add(new TimeSpan(120, 0, 0));
            DateTime dimanche = laDate.Subtract(new TimeSpan(24, 0, 0));

            //Création des jours - ajouter les blocs existants
            jours[0] = new GrilleJour("Dimanche", dimanche, 1, 40, 20, grfx, loader, this);
            jours[1] = new GrilleJour("Lundi", lundi, 2, 140, 20, grfx, loader, this);
            jours[2] = new GrilleJour("Mardi", mardi, 3, 240, 20, grfx, loader, this);
            jours[3] = new GrilleJour("Mercredi", mercredi, 4, 340, 20, grfx, loader, this);
            jours[4] = new GrilleJour("Jeudi", jeudi, 5, 440, 20, grfx, loader, this);
            jours[5] = new GrilleJour("Vendredi", vendredi, 6, 540, 20, grfx, loader, this);
            jours[6] = new GrilleJour("Samedi", samedi, 7, 640, 20, grfx, loader, this);
        }

        private void Image_Tap(object sender, System.Windows.Input.GestureEventArgs e)
        {
            if (cyclePivot.Items.Count == 0)
            {
                MessageBox.Show("Please define at least one cycle before continuing", "No cycles have been defined", MessageBoxButton.OK);
                return;
            }
            dateTimeRunning = DateTime.Now;
            dateTimeEnd = dateTimeRunning.Add((TimeSpan)timeSpanPicker.Value);
            int i = currentCycle;
            //for (int i = 0; i < App.ViewModel.CycleCounter - 1; i++)
            //{
            DateTime dtEnd = dateTimeEndCycles[i];
            DateTime dtRunning = dateTimeRunningCycles[i];
            PivotItem pItem = (PivotItem)cyclePivot.Items[i];
            TimeSpanPicker picker = (TimeSpanPicker)pItem.Content;
            dateTimeEndCycles[i] = dateTimeRunning.Add((TimeSpan)picker.Value);
            dateTimeRunningCycles[i] = DateTime.Now;
            //}

            //Time is zero, so exit
            if (timeSpanPicker.Value == TimeSpan.FromTicks(0))
                return;

            PlayPause.Source = (ImageSource)new ImageSourceConverter().ConvertFromString("Images/appbar.transport.pause.rest.png");
            if (!dispatcherTimer.IsEnabled)
            {
                dispatcherTimer.Start();
            }
            else
            {
                dispatcherTimer.Stop();
                PlayPause.Source = (ImageSource)new ImageSourceConverter().ConvertFromString("Images/appbar.transport.play.rest.png");
            }
        }

 private static bool IntersectDates(DateTime one, DateTime two, TimeSpan tone, TimeSpan ttwo)
 {
     if (one == two || one.Add(tone) == two.Add(ttwo))
     {
         return false;
     }
     else if (one < two)
     {
         if (one.Add(tone) > two)
         {
             return false;
         }
         if (one.Add(tone) > two.Add(ttwo))
         {
             return false;
         }
     }
     else
     {
         if (two.Add(ttwo) > one)
         {
             return false;
         }
         if (one.Add(tone) < two.Add(ttwo))
         {
             return false;
         }
     }
     return true;
 }

 public static DateTime ConvertFromSubsonicTimestamp(double timestamp, bool asLocalTime = true)
 {
     DateTime origin = new DateTime(1970, 1, 1, 0, 0, 0, 0);
     TimeSpan ts = TimeSpan.FromSeconds(timestamp / 1000); //subsonic seems to measure in ms rather than seconds
     if (asLocalTime)
         return origin.Add(ts).ToLocalTime();
     return origin.Add(ts);
 }

		protected override async Task FillGuide(DateTime date) {
			// Nolasīto bloku saturs. Viens [bloka] raidījums var būt vairākas reizes dienā, bet tam atbilst viena bloka lappuse.
			var episodes=new Dictionary<int, Episode>(12);
			bool previousIsPast=true; // Vai iepriekšējais bloks ir pagātnē. Lieto pašreizējā bloka noteikšanai (jo tas nekā neizceļās).
			string episodeCaption=null; // Pašreizējā bloka nosaukums.
			var sb=new StringBuilder(200);

			foreach (var xEpisode in await GetFragments("http://radiomayak.ru/schedule/index/date/"+date.ToString("dd-MM-yyyy"))) {
				string className=xEpisode.Attribute("class").Value;
				if (className == "b-schedule__list-sub-list") {
					// Dienas programmā pašreizējais bloks ir izvērsts, paņem no tā visus raidījumus.
					foreach (var fragment in xEpisode.Elements("div")) {
						var data=fragment.Element("div").Elements("div");
						AddBroadcast(date.Add(TimeSpan.Parse(data.ElementAt(0).Value.Substring(0, 5))), // hh:mm
							GetCaption(data, episodeCaption), GetDescription(data, sb));
					}
				} else {
					var data=xEpisode.Element("div").Elements("div");
					var link=data.ElementAt(1).Element("h5").Element("a");
					if (previousIsPast && !className.EndsWith("past-show")) {
						// Tā kā pirmais bloka raidījums sākas kopā ar bloku, iegaumē tikai tā nosaukumu.
						episodeCaption=link.Value;
					} else {
						if (episodeCaption == null) {
							// Raidījumiem pirms pašreizējā paņem tikai bloka laiku un nosaukumu.
							AddBroadcast(date.Add(TimeSpan.Parse(data.ElementAt(0).Value)), // hh:mm
								link.Value, null);
						} else {
							episodeCaption=link.Value;
							string episodeTime=data.ElementAt(0).Value; // hh:mm

							int id=int.Parse(idRx.Match(link.Attribute("href").Value).Groups[1].Value);
							Episode episode;
							if (!episodes.TryGetValue(id, out episode)) {
								// Nākošajiem raidījumiem bloka saturu izgūst no atsevišķas lappuses.
								episode=new Episode(await GetFragments("http://radiomayak.ru"+link.Attribute("href").Value));
								episodes.Add(id, episode);
							}

							bool inBlock=false; // Vai pašreizējie bloka raidījumi atbilst atlasāmajam laikam.
							for (int n=episode.StartIdx; n < episode.FragmentsCount; n++) {
								var fragment=episode.Fragments.ElementAt(n);
								data=fragment.Element("div").Elements("div");
								if (data.Count() == 2) { // Starp blokiem ir atdalītāji, kurus veido mazāk div elementu.
									if (inBlock) { episode.StartIdx=n+1; break; }
									continue;
								}
								string fragmentTime=data.ElementAt(0).Value.Substring(0, 5); // hh:mm (Substring nogriež atdalītāju un beigu laiku)
								if (episodeTime == fragmentTime) inBlock=true;
								if (inBlock)
									AddBroadcast(date.Add(TimeSpan.Parse(fragmentTime)), GetCaption(data, episodeCaption), GetDescription(data, sb));
							}
						}
					}
					previousIsPast=className.EndsWith("past-show");
				}
			}
		}

        public void AreEqualsValidatesDatesWithinThreshold()
        {
            var date1 = new DateTime(2016, 3, 1, 12, 34, 56);
            var date2 = date1.Add(1.Seconds());
            LoggerAssert.AreEqual(date1, date2, 2.Seconds(), "Dates should be equal +/- 2 seconds");

            var date3 = date1.Add(5.Seconds());
            TestUtils.ExpectException<AssertFailedException>(() => LoggerAssert.AreEqual(date1, date3, 2.Seconds(), "This assert should fail!"),
                "5 seconds are too big a difference...");
        }

        static void Main(string[] args)
        {
            long javams = 1339714653449L;
            DateTime UTCBaseTime = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc);
            DateTime dt = UTCBaseTime.Add(new TimeSpan(javams * TimeSpan.TicksPerMillisecond)).ToLocalTime();

            System.Console.Out.WriteLine(dt.Ticks);
            System.Console.Out.WriteLine(DateTime.Now.Ticks);

            System.Console.Out.WriteLine(DateTime.Parse("2012.06.14 02:57:23"));
            System.Console.Out.WriteLine(new DateTime(dt.Ticks));
            System.Console.Out.WriteLine(new DateTime(DateTime.Now.Ticks));

            double Latitude = ConvertCoordinates("N4753.0418");
            double Longitude = ConvertCoordinates("E00820.8429");
            double Altitude = double.Parse("1015.4", NumberFormatInfo.InvariantInfo);

            System.Console.Out.WriteLine(new DateTime(634755390850000000).AddDays(-1));
            System.Console.Out.WriteLine(new DateTime(UTCBaseTime.Add(new TimeSpan(1339942290000L * TimeSpan.TicksPerMillisecond)).Ticks));

            // Type serviceType = typeof(LiveInputService.LiveInputServiceImpl);
            // ServiceHost host = new ServiceHost(serviceType,new Uri[]{new Uri("gps")});
            //host.Open();
            // AnrlService.AnrlServiceImpl service = new AnrlService.AnrlServiceImpl();
            // service.start();
            Thread.Sleep(Int32.MaxValue);
            /*int PORT = 1337;
            TcpListener server;
            server = new TcpListener(IPAddress.Any, PORT);
            server.Start();
            server.BeginAcceptTcpClient(ClientConnected, server);
            Thread.Sleep(Int32.MaxValue);
            /*
            AnrlDB.AnrlDataContext db = new AnrlDB.AnrlDataContext();
            db.DatabaseExists();
            db.CreateDatabase();*/

            /*
            string path = @"C:\Users\Helios6x\Downloads\flags_style1_medium";
            DirectoryInfo dir = new DirectoryInfo(path);
            AnrlDB.AnrlDataContext db = new AnrlDB.AnrlDataContext();
            foreach (FileInfo fi in dir.GetFiles().Where(p=>p.Extension==".png"))
            {
                Image i = Image.FromFile(fi.FullName);
                t_Picture pic = new t_Picture();
                pic.Name = fi.Name.Replace(fi.Extension,"").Trim();
                pic.isFlag = true;

                MemoryStream ms = new MemoryStream();
                i.Save(ms, System.Drawing.Imaging.ImageFormat.Png);
                pic.Data = ms.ToArray();
                db.t_Pictures.InsertOnSubmit(pic);
            }
            db.SubmitChanges();*/
        }

        public static bool CheckAvail(this TableAvailability ta, DateTime date, DateTime startTime, DateTime endTime)
        {
            var TAStartTime = date.Add(DateTime.ParseExact(ta.StartTime.Trim(), "h:mm tt", CultureInfo.InvariantCulture).TimeOfDay);
            var TAEndTime = date.Add(DateTime.ParseExact(ta.EndTime.Trim(), "h:mm tt", CultureInfo.InvariantCulture).TimeOfDay);

            if ((TAStartTime <= startTime && TAEndTime >= endTime)
                || (TAStartTime >= startTime && TAEndTime <= endTime)
                || (TAStartTime < startTime && TAEndTime > startTime)
                || (TAStartTime < endTime && TAEndTime > endTime))
                return true;
            else
                return false;
        }

        public EPGEntry(ushort service, string name, string description, DateTime start, TimeSpan duration)
        {
            // Main
            Text = string.Format("{0} (0x{0:x})", service);

            // Load all
            SubItems.Add(start.ToString());
            SubItems.Add(start.Add(duration).TimeOfDay.ToString());
            SubItems.Add(name);
            SubItems.Add(description);

            // Create for compare
            CompareData = new object[] { service, start, start.Add(duration), name };
        }

 public void AddEvent(DateTime date, string title, string location)
 {
     Event newEvent = new Event(date, title, location);
     title.Add(title.ToLower(), newEvent);
     date.Add(newEvent);
     Messages.EventAdded();
 }

        public void SchoolDayLessonsTest()
        {
            TimeSpan lessonDuration = Duration.Minutes( 50 );
            TimeSpan shortBreakDuration = Duration.Minutes( 5 );
            TimeSpan largeBreakDuration = Duration.Minutes( 15 );
            DateTime now = ClockProxy.Clock.Now;
            DateTime todaySchoolStart = new DateTime( now.Year, now.Month, now.Day, 8, 0, 0 );

            TimeBlock lesson1 = new TimeBlock( todaySchoolStart, lessonDuration );
            TimeBlock break1 = new TimeBlock( lesson1.End, shortBreakDuration );
            TimeBlock lesson2 = new TimeBlock( break1.End, lessonDuration );
            TimeBlock break2 = new TimeBlock( lesson2.End, largeBreakDuration );
            TimeBlock lesson3 = new TimeBlock( break2.End, lessonDuration );
            TimeBlock break3 = new TimeBlock( lesson3.End, shortBreakDuration );
            TimeBlock lesson4 = new TimeBlock( break3.End, lessonDuration );

            Assert.AreEqual( lesson4.End,
                todaySchoolStart.Add( lessonDuration ).
                Add( shortBreakDuration ).
                Add( lessonDuration ).
                Add( largeBreakDuration ).
                Add( lessonDuration ).
                Add( shortBreakDuration ).
                Add( lessonDuration ) );
        }