[Parameter]
public DxSchedulerAppointmentItem SelectedAppointment { get; set; }

<DxScheduler DataStorage="@DataStorage" @bind-SelectedAppointment="@SelectedAppointment">
    <DxSchedulerWeekView ShowWorkTimeOnly="true" />
</DxScheduler>

@code {
  DxSchedulerAppointmentItem SelectedAppointment { get; set; }

  DxSchedulerDataStorage DataStorage = new DxSchedulerDataStorage() {
    AppointmentsSource = AppointmentCollection.GetAppointments(),
    AppointmentMappings = new DxSchedulerAppointmentMappings() {
      Type = "AppointmentType",
      Start = "StartDate",
      End = "EndDate",
      Subject = "Caption",
      AllDay = "AllDay",
      Location = "Location",
      Description = "Description",
      LabelId = "Label",
      StatusId = "Status",
      RecurrenceInfo = "Recurrence",
      Id = "Id"
    }
  };

  protected override void OnInitialized() {
    SelectedAppointment = DataStorage.GetAppointmentItemById(1);
  }
}

public class Appointment {
  public Appointment() { }

  public string Recurrence { get; set; }
  public int AppointmentType { get; set; }
  public DateTime StartDate { get; set; }
  public DateTime EndDate { get; set; }
  public string Caption { get; set; }
  public string Description { get; set; }
  public string Location { get; set; }
  public int Label { get; set; }
  public int Status { get; set; }
  public bool AllDay { get; set; }
  public int Id { get; set; }
}

public static partial class AppointmentCollection {
    public static List<Appointment> GetAppointments() {
        DateTime date = DateTime.Today;
        var dataSource = new List<Appointment>() {
            new Appointment {
                Caption = "Install New Router in Dev Room",
                StartDate = date + (new TimeSpan(0, 10, 0, 0)),
                EndDate = date + (new TimeSpan(0, 12, 0, 0)),
                Label = 6, 
                Status = 1,
                Id = 1
            },
            new Appointment {
                Caption = "Upgrade Personal Computers",
                StartDate = date + (new TimeSpan(0, 13, 0, 0)),
                EndDate = date + (new TimeSpan(0, 14, 30, 0)),
                Label = 1, 
                Status = 1,
                Id = 2
            },
            new Appointment {
                Caption = "Website Redesign Plan",
                StartDate = date + (new TimeSpan(1, 9, 30, 0)),
                EndDate = date + (new TimeSpan(1, 11, 30, 0)),
                Label = 1, 
                Status = 1,
                Id = 3
            },
            // ...
        };
        return dataSource;
    }
}