DataSource.AppointmentMappings Property

Gets or sets an object that specifies how appointment properties map to the data source fields.

Namespace: DevExpress.XamarinForms.Scheduler

Assembly: DevExpress.XamarinForms.Scheduler.dll

Declaration

[TypeConverter(typeof(ExpandableObjectConverter))]
public AppointmentMappings AppointmentMappings { get; set; }

Property Value

Type	Description
AppointmentMappings	An object that contains mappings of the appointment properties to the data source fields.

Remarks

When you bind SchedulerView to an external data source of appointments (DataSource.AppointmentsSource), use the AppointmentMappings property to define which data source fields should serve as sources of data for properties of the scheduler’s appointment.

Example

This example shows how to bind a SchedulerView instance to a data source that stores custom appointment (MedicalAppointment) and label (MedicalAppointmentType) objects.

1. Assign a view model object to the content page’s BindingContext property.

2. Set the SchedulerView.DataSource property to a DataSource object and specify the following properties of this object:

   • AppointmentsSource and AppointmentMappings - bind the scheduler to the collection of appointment objects and map appointment properties to the MedicalAppointment class properties.
   • AppointmentLabelsSource and AppointmentLabelMappings - bind the scheduler to the collection of appointment labels and map appointment label properties to the MedicalAppointmentType class properties.
   C#: Model

   using System;
   using System.Collections.ObjectModel;
   using Xamarin.Forms;
   
   namespace SchedulerExample.Models {
       public class MedicalAppointment {
           public int Id { get; set; }
           public DateTime StartTime { get; set; }
           public DateTime EndTime { get; set; }
           public string Subject { get; set; }
           public int LabelId { get; set; }
           public string Location { get; set; }
       }
   
       public class MedicalAppointmentType {
           public int Id { get; set; }
           public string Caption { get; set; }
           public Color Color { get; set; }
       }
   
       public class ReceptionDeskData {
           public static DateTime BaseDate = DateTime.Today;
   
           public static string[] AppointmentTypes = { "Hospital", "Office", "Phone Consultation", "Home", "Hospice" };
           public static Color[] AppointmentTypeColors = { Color.FromHex("#9c63ff"), Color.FromHex("#64c064"),
                                                       Color.FromHex("#eead51"), Color.FromHex("#d2504b"),
                                                       Color.FromHex("#4b6bbf") };
   
   
           public static string[] PatientNames = { "Andrew Glover", "Mark Oliver", "Taylor Riley",
                                                   "Addison Davis", "Benjamin Hughes", "Lucas Smith",
                                                   "Robert King", "Laura Callahan", "Miguel Simmons",
                                                   "Isabella Carter", "Andrew Fuller", "Madeleine Russell",
                                                   "Steven Buchanan", "Nancy Davolio", "Michael Suyama",
                                                   "Margaret Peacock", "Janet Leverling", "Ariana Alexander",
                                                   "Brad Farkus", "Bart Arnaz", "Arnie Schwartz", "Billy Zimmer"};
   
           static Random rnd = new Random();
   
           void CreateMedicalAppointments() {
               int appointmentId = 1;
               int patientIndex = 0;
               DateTime start;
               TimeSpan duration;
               ObservableCollection<MedicalAppointment> result = new ObservableCollection<MedicalAppointment>();
               for (int i = -20; i < 20; i++)
                   for (int j = 0; j < 20; j++) {
                       int room = rnd.Next(1, 100);
                       start = BaseDate.AddDays(i).AddHours(rnd.Next(8, 17)).AddMinutes(rnd.Next(0, 40));
                       duration = TimeSpan.FromMinutes(rnd.Next(15, 20));
                       result.Add(CreateMedicAppointment(appointmentId, PatientNames[patientIndex],
                                                       start, duration, room));
                       appointmentId++;
                       patientIndex++;
                       if (patientIndex >= PatientNames.Length - 1)
                           patientIndex = 1;
                   }
               MedicalAppointments = result;
           }
   
           void CreateLabels() {
               ObservableCollection<MedicalAppointmentType> result = new ObservableCollection<MedicalAppointmentType>();
               int count = AppointmentTypes.Length;
               for (int i = 0; i < count; i++) {
                   MedicalAppointmentType appointmentType = new MedicalAppointmentType();
                   appointmentType.Id = i;
                   appointmentType.Caption = AppointmentTypes[i];
                   appointmentType.Color = AppointmentTypeColors[i];
                   result.Add(appointmentType);
               }
               Labels = result;
           }
   
           MedicalAppointment CreateMedicAppointment(int appointmentId, string patientName,
                                                       DateTime start, TimeSpan duration, int room) {
               MedicalAppointment medicalAppointment = new MedicalAppointment();
               medicalAppointment.Id = appointmentId;
               medicalAppointment.StartTime = start;
               medicalAppointment.EndTime = start.Add(duration);
               medicalAppointment.Subject = patientName;
               medicalAppointment.LabelId = Labels[rnd.Next(0, 5)].Id; // Assign a custom label to an appointment
               medicalAppointment.Location = String.Format("{0}", room);
               return medicalAppointment;
           }
   
           public ObservableCollection<MedicalAppointment> MedicalAppointments { get; private set; }
           public ObservableCollection<MedicalAppointmentType> Labels { get; private set; }
   
   
           public ReceptionDeskData() {
               CreateLabels();
               CreateMedicalAppointments();
           }
       }
   }
   

   C#: ViewModel

   using System;
   using System.Collections.Generic;
   using System.ComponentModel;
   using SchedulerExample.Models;
   
   namespace SchedulerExample.ViewModels {
       public class ReceptionDeskViewModel : INotifyPropertyChanged {
           readonly ReceptionDeskData data;
   
           public event PropertyChangedEventHandler PropertyChanged;
           public DateTime StartDate { get { return ReceptionDeskData.BaseDate; } }
           public IReadOnlyList<MedicalAppointment> MedicalAppointments { get => data.MedicalAppointments; }
           public IReadOnlyList<MedicalAppointmentType> AppointmentTypes { get => data.Labels; }
   
           public ReceptionDeskViewModel() {
               data = new ReceptionDeskData();
           }
   
           protected void RaisePropertyChanged(string name) {
               if (PropertyChanged != null)
                   PropertyChanged(this, new PropertyChangedEventArgs(name));
           }
       }
   }
   

   XAML: View

   <ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
               xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
               xmlns:local="clr-namespace:SchedulerExample"
               xmlns:dxsch="clr-namespace:DevExpress.XamarinForms.Scheduler;assembly=DevExpress.XamarinForms.Scheduler"
               xmlns:vm="clr-namespace:SchedulerExample.ViewModels"
               x:Class="SchedulerExample.MainPage">
       <ContentPage.BindingContext>
           <vm:ReceptionDeskViewModel/>
       </ContentPage.BindingContext>
       <dxsch:SchedulerView x:Name="scheduler">
           <dxsch:SchedulerView.DataSource>
               <dxsch:DataSource AppointmentsSource="{Binding MedicalAppointments}"
                                 AppointmentLabelsSource="{Binding AppointmentTypes}">
                   <dxsch:DataSource.AppointmentMappings>
                       <dxsch:AppointmentMappings 
                               Id="Id" 
                               Start="StartTime" 
                               End="EndTime" 
                               Subject="Subject"
                               LabelId="LabelId"
                               Location="Location"/>
                   </dxsch:DataSource.AppointmentMappings>
                   <dxsch:DataSource.AppointmentLabelMappings>
                       <dxsch:AppointmentLabelMappings
                               Caption="Caption"
                               Color="Color"
                               Id="Id"/>
                   </dxsch:DataSource.AppointmentLabelMappings>
               </dxsch:DataSource>
           </dxsch:SchedulerView.DataSource>
       </dxsch:SchedulerView>
   </ContentPage>