C# ObservableCollection.Count方法代码示例

        private void LoadData()
        {
            int pageCount = 0;
            string filter = "";
            ObservableCollection<object> paras = new ObservableCollection<object>();


            TextBox txtName = Utility.FindChildControl<TextBox>(expander, "txtName");
            TextBox txtCardNumber = Utility.FindChildControl<TextBox>(expander, "txtCardNumber");

            if (!string.IsNullOrEmpty(txtName.Text.Trim()))
            {
                filter += "[email protected]" + paras.Count().ToString();
                paras.Add(txtName.Text.Trim());
            }
            if (!string.IsNullOrEmpty(txtCardNumber.Text.Trim()))
            {
                if (!string.IsNullOrEmpty(filter))
                {
                    filter += " and ";
                }
                filter += "[email protected]" + paras.Count().ToString();
                paras.Add(txtCardNumber.Text.Trim());
            }
            client.AssessmentFormMasterPagingAsync(dataPager.PageIndex, dataPager.PageSize, "NAME", 
                filter, paras, pageCount, SMT.SAAS.Main.CurrentContext.Common.CurrentLoginUserInfo.EmployeeID);
        }

        private void LoadData()
        {
            int pageCount = 0;
            string filter = "";
            ObservableCollection<string> paras = new ObservableCollection<string>();

            TextBox txtName = Utility.FindChildControl<TextBox>(expander, "txtName");
            TextBox txtCardNumber = Utility.FindChildControl<TextBox>(expander, "txtCardNumber");

            if (txtName != null)
            {
                if (!string.IsNullOrEmpty(txtName.Text.Trim()))
                {
                    //filter += "[email protected]" + paras.Count().ToString();
                    filter += " @" + paras.Count().ToString() + ".Contains(NAME)";
                    paras.Add(txtName.Text.Trim());
                }
            }
            if (txtCardNumber != null)
            {
                if (!string.IsNullOrEmpty(txtCardNumber.Text.Trim()))
                {
                    if (!string.IsNullOrEmpty(filter))
                    {
                        filter += " and ";
                    }
                    //  filter += "[email protected]" + paras.Count().ToString();
                    filter += " @" + paras.Count().ToString() + ".Contains(IDCARDNUMBER)";
                    paras.Add(txtCardNumber.Text.Trim());
                }
            }
            client.GetResumePagingAsync(dataPager.PageIndex, dataPager.PageSize, "NAME", filter, paras, pageCount);
        }

        private async Task<List<StorageFile>> pickRandomSongs(ObservableCollection<StorageFile> allSongs)
        {
            Random random = new Random();
            var songsCount = allSongs.Count();
            var randomSongs = new List<StorageFile>();

            while (randomSongs.Count<10)
            {
                var randomNum = random.Next(songsCount);
                var randomSong = allSongs[randomNum];

                //Find random songs BUT:
                //1. Don't pick the same song twice!
                //2. Don't pick a song from an album that I've already picked

                MusicProperties randomSongMusicProperties = await randomSong.Properties.GetMusicPropertiesAsync();

                bool isDuplicate = false;
                foreach (var song in randomSongs)
                {
                    MusicProperties songMusicProperties = await song.Properties.GetMusicPropertiesAsync();
                    if (String.IsNullOrEmpty(randomSongMusicProperties.Album) || randomSongMusicProperties.Album == songMusicProperties.Album)
                        isDuplicate = true;
                }
                if (!isDuplicate)
                    randomSongs.Add(randomSong);
            }
            return randomSongs;
        }

        public void GetRecurrence(ObservableCollection<NotificacionModel> notifs)
        {
            NotificationRepository _NotificationRepository = new NotificationRepository();
            long fechaSystema = long.Parse(String.Format("{0:yyyy:MM:dd:HH:mm:ss:fff}", DateTime.Now).Replace(":", ""));

            if (notifs.Count() !=0)
            {
                notifs.ToList().ForEach(p =>
                {
                    if (this.GetFUMRecurrencia(p) <= fechaSystema)
                    {
                        Application.Current.Dispatcher.BeginInvoke(new Action(() =>
                        {
                            this.GetParetWindows().GetScreenActive();
                            //actualizar la fecha por la del sistema
                            _NotificationRepository.UpdateNotificationRecurrencia(
                                new Model.NotificacionModel()
                                {
                                    IdNotificacion = p.IdNotificacion,
                                    Recurrencia =p.Recurrencia,
                                    FechaUltimaMuestra = new UNID().getNewUNID()
                                });
                        }));
                    }
                });

            }
        }

        public KorisnikPrograma DajKorisnikPrograma()
        {
            try
            {
                LavDataClassesDataContext _baza = new LavDataClassesDataContext(konekcioniString);

                if (_baza.DatabaseExists())
                {
                    IQueryable<KorisnikPrograma> _upit = (from p in _baza.KorisnikProgramas
                                                          select p).OrderBy(w => w.KorisnikProgramaID).Take(1);

                    ObservableCollection<KorisnikPrograma> _lista = new ObservableCollection<KorisnikPrograma>(_upit.ToList());

                    if (_lista.Count().Equals(1))
                    {
                        return _lista.First();
                    }
                    else
                    {
                        return null;
                    }
                }
                else
                {
                    throw new Exception("Baza ne postoji.");
                }
            }
            catch (Exception ex)
            {
                throw ex;
            }
        }

        public async Task<bool> CallWebApiAddReunion(Reunion reunion, ObservableCollection<Anime> selectedAnime)
        {
            HttpClient client = new HttpClient();
            string json = JsonConvert.SerializeObject(reunion);
            HttpContent content = new StringContent(json, Encoding.UTF8, "application/json");
            HttpResponseMessage response = await client.PostAsync("http://scoutome.azurewebsites.net/api/reunions", content);
            if (response.IsSuccessStatusCode)
            {
                //    Pour ajouter les présences  
                for (int i = 0; i < selectedAnime.Count(); i++)
                {
                    Presences pre = new Presences();
                    pre.codeReunion = reunion.codeReunion;
                    pre.useless = 1;
                    pre.codeAnime = selectedAnime[i].codeAnime;

                    string jsonPresence = JsonConvert.SerializeObject(pre);
                    HttpContent contentPresence = new StringContent(jsonPresence, Encoding.UTF8, "application/json");
                    HttpResponseMessage responsefav = await client.PostAsync("http://scoutome.azurewebsites.net/api/presences", contentPresence);
                    if (responsefav.IsSuccessStatusCode)
                    {

                    }
                }

            }
            return false;
        }

        public SettingsPage()
        {
            InitializeComponent();
            _SerializationService = Template10.Services.SerializationService.SerializationService.Json; var settings = ApplicationData.Current.LocalSettings;
            ObservableCollection<Jeedom.Model.Command> GeolocCmd = new ObservableCollection<Jeedom.Model.Command>();
            foreach (var Equipement in RequestViewModel.Instance.EqLogicList.Where(w => w.eqType_name.Equals("geoloc")))
            {
                foreach (var Cmd in Equipement.GetInformationsCmds())
                    GeolocCmd.Add(Cmd);
            }
            HomePosition_Cmd.ItemsSource = GeolocCmd;
            MobilePosition_Cmd.ItemsSource = GeolocCmd;
            if (GeolocCmd.Count() == 0)
                Location.IsEnabled = false;
            else
                Location.IsEnabled = true;
            var GeolocObjectId = settings.Values["GeolocObjectId"];
            if (GeolocObjectId != null)
            {
                foreach (var ObjectsSelect in GeolocCmd.Where(w => w.id.Equals(GeolocObjectId)))
                {
                    MobilePosition_Cmd.SelectedItem = ObjectsSelect;
                }
            }
            var HomeObjectId = settings.Values["HomeObjectId"];
            if (HomeObjectId != null)
            {
                foreach (var ObjectsSelect in GeolocCmd.Where(w => w.id.Equals(HomeObjectId)))
                {
                    HomePosition_Cmd.SelectedItem = ObjectsSelect;
                }
            }
            var ObjetctPush = RequestViewModel.Instance.EqLogicList.Where(w => w.eqType_name.Equals("pushNotification"));
            MobileNotification.ItemsSource = ObjetctPush;
            if (ObjetctPush.Count() == 0)
                notify.IsEnabled = false;
            else
                notify.IsEnabled = true;
            var NotificationId = settings.Values["NotificationObjectId"];
            if (NotificationId != null)
            {
                foreach (var ObjectsSelect in RequestViewModel.Instance.EqLogicList.Where(w => w.id.Equals(NotificationId)))
                {
                    MobileNotification.SelectedItem = ObjectsSelect;
                }
            }

            if (settings.Values["Status"] != null)
            {
                Status.Text = settings.Values["Status"].ToString();
            }

            // Extract and display location data set by the background task if not null
            MobilePosition_Latitude.Text = (settings.Values["Latitude"] == null) ? "No data" : settings.Values["Latitude"].ToString();
            MobilePosition_Longitude.Text = (settings.Values["Longitude"] == null) ? "No data" : settings.Values["Longitude"].ToString();
            MobilePosition_Accuracy.Text = (settings.Values["Accuracy"] == null) ? "No data" : settings.Values["Accuracy"].ToString();
        }

        public FrmWorkerCordManagement()
        {
            InitializeComponent();
            Utility.DisplayGridToolBarButton(ToolBar, "T_OA_WORKRECORD", true);


            ToolBar.btnNew.Click += new RoutedEventHandler(btnNew_Click);
            ToolBar.btnEdit.Click += new RoutedEventHandler(btnEdit_Click);
            ToolBar.btnDelete.Click += new RoutedEventHandler(btnDelete_Click);
            workerCordManager.GetWorkerCordListByUserIdCompleted += new EventHandler<GetWorkerCordListByUserIdCompletedEventArgs>(workerCordManager_GetWorkerCordListByUserIdCompleted);
            workerCordManager.DeleteWorkerCordListCompleted += new EventHandler<DeleteWorkerCordListCompletedEventArgs>(workerCordManager_DeleteWorkerCordListCompleted);
            ToolBar.btnAudit.Visibility = Visibility.Collapsed;
            ToolBar.cbxCheckState.Visibility = Visibility.Collapsed;
            ToolBar.txtCheckStateName.Visibility = Visibility.Collapsed;
            ToolBar.btnOutExcel.Visibility = Visibility.Visible;
            //dataPager.PageSize = 23;
            //dataPager.PageIndexChanged += new EventHandler<EventArgs>(dataPager_PageIndexChanged);
            PARENT.Children.Add(loadbar);
            ToolBar.btnOutExcel.Click += new RoutedEventHandler(btnOutExcel_Click);
            ToolBar.btnRefresh.Click += new RoutedEventHandler(btnRefresh_Click);
            #region 初始值设置
            DateTime dpEnd = DateTime.Now.AddHours(23).AddMinutes(59);
            StringBuilder sbFilter = new StringBuilder();  //查询过滤条件 
            dpDate.Text = DateTime.Now.AddMonths(-1).ToShortDateString();
            dpEndDate.Text = DateTime.Now.ToShortDateString();
            paras = new ObservableCollection<object>();
            if (sbFilter.Length != 0)
            {
                sbFilter.Append(" and ");
            }
            sbFilter.Append("PLANTIME >= @" + paras.Count().ToString());
            DateTime dpStart = dpEnd.AddMonths(-1);//一个月前开始
            paras.Add(dpStart);
            sbFilter.Append(" and ");
            sbFilter.Append(" PLANTIME <= @" + paras.Count().ToString());
            paras.Add(dpEnd);
            filterString = sbFilter.ToString();
            #endregion
            ShowWorkerCordList(dataPager.PageIndex, filterString, paras);

            this.Loaded += new RoutedEventHandler(FrmWorkerCordManagement_Loaded);
            ToolBar.BtnView.Click += new RoutedEventHandler(BtnView_Click);
        }

        private void RefreshUserList()
        {
           
            _instrumentList = new ObservableCollection<Instrument>(App.WimeaApp.Instruments);
            MetarGrid.ItemsSource = null;
            MetarGrid.ItemsSource = _instrumentList;
            tbProgress.Content = _instrumentList.Count(c => c.Sync == "F" || c.Sync == " ").ToString();

           

        }

 private void SearchPublishers()
 {
     if (SearchText != "") //SearchText Needs something to search
     {
         List<Publisher> publishers = webDataService.SearchPublishers(SearchText);
         Publishers = new ObservableCollection<Publisher>(publishers);
         if (Publishers.Count() > 0)
         {
             NotifyPropertyChanged("Publishers", Publishers[0].id);
         }
     }
 }

 public FrmCalendarManagement()
 {
     InitializeComponent();
     Utility.DisplayGridToolBarButton(ToolBar, "T_OA_CALENDAR", true);
     calendarManagement.GetCalendarListByUserIDCompleted += new EventHandler<GetCalendarListByUserIDCompletedEventArgs>(calendarManagement_GetCalendarListByUserIDCompleted);
     calendarManagement.DelCalendarListCompleted += new EventHandler<DelCalendarListCompletedEventArgs>(calendarManagement_DelCalendarListCompleted);
     ToolBar.btnNew.Click += new RoutedEventHandler(btnNew_Click);
     ToolBar.btnEdit.Click += new RoutedEventHandler(btnEdit_Click);
     ToolBar.btnDelete.Click += new RoutedEventHandler(btnDelete_Click);
     ToolBar.btnAudit.Visibility = Visibility.Collapsed;
     ToolBar.cbxCheckState.Visibility = Visibility.Collapsed;
     ToolBar.txtCheckStateName.Visibility = Visibility.Collapsed;
     dataPager.PageSize = 20;
     //dataPager.PageIndexChanged += new EventHandler<EventArgs>(dataPager_PageIndexChanged);
     PARENT.Children.Add(loadbar);
     ToolBar.btnRefresh.Click += new RoutedEventHandler(btnRefresh_Click);
     #region 初始值设置
     searchParas = new ObservableCollection<object>();
     DateTime dpEndDate = DateTime.Now.AddHours(23).AddMinutes(59);
     System.Text.StringBuilder sbFilter = new System.Text.StringBuilder();  //查询过滤条件 
     cndDateCanlendar.Text = DateTime.Now.AddDays(-7).ToShortDateString();//开始时间
     EndDate.Text = DateTime.Now.ToShortDateString();//结束时间
     DateTime dpStart = dpEndDate.AddDays(-7);//一个星期前开始 开始时间
     if (sbFilter.Length != 0)
     {
         sbFilter.Append(" and ");
     }
     sbFilter.Append("PLANTIME>[email protected]" + searchParas.Count().ToString());
     searchParas.Add(dpStart);
     sbFilter.Append(" and ");
     sbFilter.Append(" PLANTIME <[email protected]" + searchParas.Count().ToString());
     searchParas.Add(dpEndDate);
     filterString = sbFilter.ToString();
     #endregion
     GetCalendarListSelectDate(System.DateTime.Now, dataPager.PageIndex, filterString, searchParas, "CREATEDATE descending");
     this.Loaded += new RoutedEventHandler(FrmCalendarManagement_Loaded);
     ToolBar.BtnView.Click += new RoutedEventHandler(BtnView_Click);
 }

        public ProjectSelector()
        {
            InitializeComponent();

            using (DatabaseDataContext Database = MyGlobals.Database)
            {
                Projects = new ObservableCollection<Project>(Database.Projects.ToList());
            }

            if (Projects.Count() == 0) this.Close();

            cBox.ItemsSource = Projects;
            cBox.SelectedItem = Projects[0];
        }

        public MainWindow()
        {
            InitializeComponent();

            quoteChanges = new ObservableCollection<Quote>();
            openStreams = new ObservableCollection<Task<Stream>>();

            quotes.ItemsSource = quoteChanges;
            openStreams.CollectionChanged += ((s, e) =>
            {
                streamCounter.Content = openStreams.Count();
            });
            startButton.Click += ((s, e) => Start(symbolList.Text, accessToken.Text));
        }

        private void RefreshUserList()
        {
            dates.Text = DateTime.Now.Date.ToString("yyyy-MM-dd");
            _dailyList = new ObservableCollection<Daily>(App.WimeaApp.Dailys);
            MetarGrid.ItemsSource = null;
            MetarGrid.ItemsSource = _dailyList.Where(w => Convert.ToDateTime(w.Dates).Month == DateTime.Now.Month && Convert.ToDateTime(w.Dates).Year == DateTime.Now.Year).OrderBy(w => w.Dates);
            tbProgress.Content = _dailyList.Count(c => c.Sync == "F" || c.Sync == " ").ToString();

            for (int p = 1; p < 13; p++)
            {
                monthTxtCbx.Items.Add(CultureInfo.CurrentCulture.DateTimeFormat.GetMonthName(p));
            }
            yearTxtBx.Text = DateTime.Now.Year.ToString();

        }

        public void setLocations(ObservableCollection<String> locations, bool isRemovable)
        {           
            Locations.Clear();

            if (locations == null) return;

            for(int i = locations.Count() - 1; i >= 0; i--)
            {
                
               PopupLocationItem location = new PopupLocationItem(locations[i], LocationSelectedCommand, 
                   LocationRemovedCommand);
               location.IsRemovable = isRemovable;

               Locations.Insert(0, location);
              
            }
        }