MainPage.xaml

<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:dx="http://schemas.devexpress.com/maui"
             x:Class="SchedulerExample.MainPage"
             Title="Example">
    <dx:WorkWeekView Start="{Binding StartDate}"
                        FirstDayOfWeek="Monday"
                        WorkDays="Monday,Tuesday,Wednesday,Friday" 
                        WorkTime="7:00:00-19:00:00"
                        ShowWorkTimeOnly="True"
                        TimeScaleInterval="01:00:00"
                        TimeScaleSlotCount="4"
                        SnapToCellsMode="Never"
                        Tap="WorkWeekView_Tap">
        <dx:WorkWeekView.DataStorage>
            <dx:SchedulerDataStorage x:Name="storage">
                <dx:SchedulerDataStorage.DataSource>
                    <dx:DataSource AppointmentsSource="{Binding MedicalAppointments}"
                                      AppointmentLabelsSource="{Binding AppointmentTypes}">
                        <dx:DataSource.AppointmentMappings>
                            <dx:AppointmentMappings 
                            Id="Id" 
                            Start="StartTime" 
                            End="EndTime" 
                            Subject="Subject"
                            LabelId="LabelId"
                            Location="Location"/>
                        </dx:DataSource.AppointmentMappings>
                        <dx:DataSource.AppointmentLabelMappings>
                            <dx:AppointmentLabelMappings
                                Caption="Caption"
                                Color="Color"
                                Id="Id"/>
                        </dx:DataSource.AppointmentLabelMappings>
                    </dx:DataSource>
                </dx:SchedulerDataStorage.DataSource>
            </dx:SchedulerDataStorage>
        </dx:WorkWeekView.DataStorage>
    </dx:WorkWeekView>
</ContentPage>