Day and Week Views in WinUI Scheduler (SfScheduler)

22 Jul 202624 minutes to read

The WinUI Scheduler supports displaying the Day, Week, and WorkWeek views, and the current day is visible by default. The appointments on a specific day are arranged in the respective timeslots based on their duration.

Change time duration

Customize the interval of timeslots in all the Day, Week, and WorkWeek views by using the TimeInterval property of DaysViewSettings.

<Window
    ...
    xmlns:scheduler="using:Syncfusion.UI.Xaml.Scheduler">
    <scheduler:SfScheduler x:Name="Schedule" 
                       ViewType="Week" >
    </scheduler:SfScheduler>
</Window>
using Syncfusion.UI.Xaml.Scheduler;

this.Schedule.ViewType = SchedulerViewType.Week;
this.Schedule.DaysViewSettings.TimeInterval = new System.TimeSpan(0, 120, 0);

change-time-interval-in-winui-scheduler-timeslot-views

NOTE

To modify the TimeInterval value (in minutes), change the time labels format by setting the TimeRulerFormat value to hh:mm.

Change time interval height

Customize the interval height of timeslots in the Day, Week, and WorkWeek views by setting the TimeIntervalSize property of DaysViewSettings.

<Window
    ...
    xmlns:scheduler="using:Syncfusion.UI.Xaml.Scheduler">
    <scheduler:SfScheduler x:Name="Schedule" ViewType="Week">
        <scheduler:SfScheduler.DaysViewSettings>
            <scheduler:DaysViewSettings 
                TimeIntervalSize="120"/>
            </scheduler:SfScheduler.DaysViewSettings>
    </scheduler:SfScheduler>
</Window>
using Syncfusion.UI.Xaml.Scheduler;

this.Schedule.ViewType = SchedulerViewType.Week;
this.Schedule.DaysViewSettings.TimeIntervalSize = 120;

change-time-interval-height-in-winui-scheduler-timeslot-views

Flexible working days

By default, the WinUI Scheduler considers weekdays from Monday to Friday as working days. The days defined in the NonWorkingDays collection are considered as non-working days. Therefore, when weekend days are set, they are hidden from the Scheduler.

The WorkWeek view displays exactly the defined working days in the Scheduler control, whereas other views display all the days.

<Window
    ...
    xmlns:scheduler="using:Syncfusion.UI.Xaml.Scheduler">
    <scheduler:SfScheduler x:Name="Schedule" ViewType="Week">
        <scheduler:SfScheduler.DaysViewSettings>
            <scheduler:DaysViewSettings 
                      NonWorkingDays="Monday,Tuesday">
            </scheduler:DaysViewSettings>
        </scheduler:SfScheduler.DaysViewSettings>
    </scheduler:SfScheduler>
</Window>
using Syncfusion.UI.Xaml.Scheduler;
this.scheduler.ViewType = SchedulerViewType.WorkWeek;
this.scheduler.DaysViewSettings.NonWorkingDays = new ObservableCollection<DayOfWeek>() { DayOfWeek.Monday, DayOfWeek.Tuesday };

flexible-working-days-in-winui-scheduler-timeslot-views

Flexible working hours

The default values for StartHour and EndHour are 0 and 24, respectively, to show all the timeslots in the Day, Week, and WorkWeek views. Set the StartHour and EndHour properties of DaysViewSettings to show only the required time duration for users. Set the StartHour and EndHour values to display the required time duration in minutes.

<Window
    ...
    xmlns:scheduler="using:Syncfusion.UI.Xaml.Scheduler">
    <scheduler:SfScheduler x:Name="Schedule" ViewType="Week">
        <scheduler:SfScheduler.DaysViewSettings>
            <scheduler:DaysViewSettings 
                StartHour="8"
                EndHour="13"/>
            </scheduler:SfScheduler.DaysViewSettings>
    </scheduler:SfScheduler>
</Window>
using Syncfusion.UI.Xaml.Scheduler;

this.Schedule.ViewType = SchedulerViewType.Week;
this.Schedule.DaysViewSettings.StartHour = 8;
this.Schedule.DaysViewSettings.EndHour = 13;

flexible-working-hours-in-winui-scheduler-timeslot-views

NOTE

  • The NonWorkingDays property is applicable only for the WorkWeek and TimelineWorkWeek views, and is not applicable for the remaining views.
  • Scheduler appointments that do not fall within the StartHour and EndHour will not be visible, and if they fall partially, they will be clipped.
  • You do not need to specify decimal values for StartHour and EndHour if you do not want to set the minutes.
  • The number of time slots will be calculated based on total minutes of a day and time interval (total minutes of a day ((start hour - end hour) * 60) / time interval).
  • If a custom TimeInterval is given, the number of time slots calculated based on the given TimeInterval should result in an integer value (total minutes % timeInterval = 0); otherwise, the next immediate time interval that results in an integer value when dividing the total minutes of a day will be considered. For example, if TimeInterval = 2 hours 15 minutes and total minutes = 1440 (24 hours per day), then the TimeInterval will be changed to 144 minutes (1440 % 144 = 0) to return an integer value for time slot rendering.
  • If custom StartHour and EndHour values are given, the number of time slots calculated based on the given StartHour and EndHour should result in an integer value; otherwise, the next immediate TimeInterval will be considered until the result is an integer value. For example, if the StartHour is 9 (09:00 AM), EndHour is 18.25 (06:15 PM), TimeInterval is 30 minutes, and total minutes = 555 ((18.25 - 9) * 60), then the TimeInterval will be changed to 37 minutes (555 % 37 = 0) to return the integer value for time slot rendering.

Display spanned appointments in time slots

The AllowSpannedAppointmentsInTimeSlots property determines whether appointments spanning more than 24 hours are displayed in the all-day panel or directly within the timeslot cells of the Day, Week, and WorkWeek views. By default, these appointments are rendered in the all-day panel. Setting AllowSpannedAppointmentsInTimeSlots to true displays spanned appointments within the corresponding time-slot cells.

<Window
    ...
    xmlns:scheduler="using:Syncfusion.UI.Xaml.Scheduler">
    <scheduler:SfScheduler x:Name="Scheduler" 
                           ViewType="Week">
        <scheduler:SfScheduler.DaysViewSettings>
            <scheduler:DaysViewSettings AllowSpannedAppointmentsInTimeSlots="True"/>
        </scheduler:SfScheduler.DaysViewSettings>
    </scheduler:SfScheduler>
</Window>
using Syncfusion.UI.Xaml.Scheduler;

SfScheduler scheduler = new SfScheduler();
scheduler.ViewType = SchedulerViewType.Week;
scheduler.DaysViewSettings.AllowSpannedAppointmentsInTimeSlots = true;
this.Content = scheduler;

Special time regions

Restrict user interaction, such as selection, and highlight specific regions of time in the Day, Week, and WorkWeek views by adding the SpecialTimeRegions property of SfScheduler. Set the StartTime and EndTime properties of SpecialTimeRegion to create a SpecialTimeRegion. Use the TimeZone property to set the specific timezone for the start and end time of SpecialTimeRegion. The SpecialTimeRegion will display the text or image that is set to the Text or Icon property of SpecialTimeRegion.

Merge adjacent regions of SpecialTimeRegion and show them as a single region instead of showing them separately for each day by using the CanMergeAdjacentRegions property of SpecialTimeRegion in the Week and WorkWeek views. By default, its value is set to false.

Selection restriction in timeslots

Enable or disable the touch interaction of the SpecialTimeRegion by using the CanEdit property of SpecialTimeRegion. By default, its value is set to true.

<Window
    ...
    xmlns:scheduler="using:Syncfusion.UI.Xaml.Scheduler">
    <scheduler:SfScheduler x:Name="Schedule" 
                       ViewType="Week" >
    </scheduler:SfScheduler>
</Window>
using Syncfusion.UI.Xaml.Scheduler;

this.Schedule.ViewType = SchedulerViewType.Week;
this.Schedule.DaysViewSettings.SpecialTimeRegions.Add(new SpecialTimeRegion
{
    StartTime = new System.DateTime(2021, 03, 23, 13, 0, 0),
    EndTime = new System.DateTime(2021, 03, 23, 14, 0, 0),
    Text = "Lunch",
    CanEdit = false,
    Background = new SolidColorBrush(Colors.LightGray),
    Foreground = new SolidColorBrush(Colors.White)
});

selection-restriction-in-timeslots-in-winui-scheduler-timeslot-views

NOTE

This property only restricts the interaction on a region; it does not restrict the following:

  • Programmatic selection (if the user updates the selected date value dynamically).
  • It does not clear the selection when the user selects the region and dynamically changes the CanEdit property to false.
  • It does not restrict appointment interaction when an appointment is placed in the region.
  • It does not restrict the appointment rendering on a region when the appointments are loaded from data services or added programmatically.

Recurring time region

The recurring time region can be set on a daily, weekly, monthly, or yearly interval. Recurring special time regions can be created by setting the RecurrenceRule property in SpecialTimeRegion.

Merge the adjacent regions of SpecialTimeRegion and show them as a single region instead of showing them separately for each day by using the CanMergeAdjacentRegions property of SpecialTimeRegion in the Week and WorkWeek views. By default, its value is set to false.

<Window
    ...
    xmlns:scheduler="using:Syncfusion.UI.Xaml.Scheduler">
    <scheduler:SfScheduler x:Name="Schedule" 
                       ViewType="Week" >
    </scheduler:SfScheduler>
</Window>
using Syncfusion.UI.Xaml.Scheduler;

this.Schedule.ViewType = SchedulerViewType.Week;
this.Schedule.DaysViewSettings.SpecialTimeRegions.Add(new SpecialTimeRegion
{
    StartTime = new System.DateTime(2021, 03, 21, 13, 0, 0),
    EndTime = new System.DateTime(2021, 03, 21, 14, 0, 0),
    Text = "Lunch",
    CanEdit = false,
    Background = new SolidColorBrush(Colors.LightGray),
    Foreground = new SolidColorBrush(Colors.White),
    CanMergeAdjacentRegions = true,
    RecurrenceRule = "FREQ=DAILY;INTERVAL=1"
});

recurring-time-region-in-timebasis-in-winui-scheduler-timeslot-views

If the CanMergeAdjacentRegions of SpecialTimeRegion is set to false, the SpecialTimeRegion will be rendered on a date basis.

recurring-time-region-in-datebasis-in-winui-scheduler-timeslot-views

Recurrence exception dates

Delete any occurrence that is an exception from the recurrence pattern time region by using the RecurrenceExceptionDates property of SpecialTimeRegion. The deleted occurrence date will be considered as a recurrence exception date.

<Window
    ...
    xmlns:scheduler="using:Syncfusion.UI.Xaml.Scheduler">
    <scheduler:SfScheduler x:Name="Schedule" 
                       ViewType="Week" >
    </scheduler:SfScheduler>
</Window>
using Syncfusion.UI.Xaml.Scheduler;

this.Schedule.ViewType = SchedulerViewType.Week;
           
DateTime recurrenceExceptionDates = DateTime.Now.Date.AddDays(-1);
DateTime recurrenceExceptionDates1 = DateTime.Now.Date.AddDays(2);
this.Schedule.DaysViewSettings.SpecialTimeRegions.Add(new SpecialTimeRegion
{
    StartTime = new System.DateTime(2021, 03, 21, 13, 0, 0),
    EndTime = new System.DateTime(2021, 03, 21, 14, 0, 0),
    Text = "Lunch",
    CanEdit = false,
    RecurrenceRule = "FREQ=DAILY;INTERVAL=1",
    CanMergeAdjacentRegions = true,
    Background = new SolidColorBrush(Colors.LightGray),
    Foreground = new SolidColorBrush(Colors.White),
    RecurrenceExceptionDates = new ObservableCollection<DateTime>()
    {
        recurrenceExceptionDates,
        recurrenceExceptionDates1,
    }
});

recurrence-exception-dates-in-timebasis-in-winui-scheduler-timeslot-views

The SpecialTimeRegion can be rendered on a date basis by setting the value of CanMergeAdjacentRegions to false.

recurrence-exception-dates-in-datebasis-in-winui-scheduler-timeslot-views

Special time region customization

The SpecialTimeRegion background color can be customized by using the Background and SpecialTimeRegionTemplate properties of SpecialTimeRegion, which is used to customize the text style and image of the SpecialTimeRegion.

<Window
    ...
    xmlns:scheduler="using:Syncfusion.UI.Xaml.Scheduler">
    <Grid>
        <Grid.Resources>
            <DataTemplate x:Key="specialRegionTemplate">
                <Grid Background="{Binding Background}"
                Opacity="0.5"
                HorizontalAlignment="Stretch"
                VerticalAlignment="Stretch">
                <Path x:Name="Fork" Data="M11,0 C11.553001,0 12,0.4469986 12,1 L12,15 C12,15.553001 11.553001,16 11,16 10.446999,16 10,15.553001 10,15 L10,7 9,7 C8.4469986,7 8,6.5530014 8,6 L8,3 C8,1.3429985 9.3429985,0 11,0 z M0,0 L1,0 1.2340002,4 1.7810001,4 2,0 3,0 3.2340002,4 3.7810001,4 4,0 5,0 5,4 C5,4.9660001 4.3140001,5.7727499 3.4029064,5.9593439 L3.4007993,5.9597201 3.9114671,14.517 C3.9594617,15.321 3.3195295,16 2.5136147,16 L2.5076156,16 C1.6937013,16 1.0517693,15.309 1.1107631,14.497 L1.7400641,5.9826035 1.6955509,5.9769421 C0.73587513,5.8301721 0,5.0005002 0,4 z" Fill="Black" HorizontalAlignment="Center" Height="16"  Stretch="Fill" VerticalAlignment="Center" Width="12"/>
                </Grid>
            </DataTemplate>
        </Grid.Resources>
    <scheduler:SfScheduler x:Name="Schedule" ViewType="Week">
        <scheduler:SfScheduler.DaysViewSettings>
            <scheduler:DaysViewSettings  
                                    SpecialTimeRegionTemplate="{StaticResource specialRegionTemplate}">
            </scheduler:DaysViewSettings>
        </scheduler:SfScheduler.DaysViewSettings>
    </scheduler:SfScheduler>
    </Grid>
</Window>
using Syncfusion.UI.Xaml.Scheduler;

this.Schedule.DaysViewSettings.SpecialTimeRegions.Add(new SpecialTimeRegion
{
    StartTime = new System.DateTime(2021, 03, 21, 13, 0, 0),
    EndTime = new System.DateTime(2021, 03, 21, 14, 0, 0),
    Text = "Lunch",
    CanEdit = false,
    RecurrenceRule = "FREQ=DAILY;INTERVAL=1",
    CanMergeAdjacentRegions = true,
    Background = new SolidColorBrush(Colors.LightGray),
    Foreground = new SolidColorBrush(Colors.White),
});

special-time-region-customization-in-timebasis-in-winui-scheduler-timeslot-views

The SpecialTimeRegion can be customized on a date basis by setting the value of CanMergeAdjacentRegions to false.

special-time-region-customization-in-datebasis-in-winui-scheduler-timeslot-views

NOTE

View sample in GitHub

Full screen scheduler

The WinUI Scheduler time interval height can be adjusted based on the screen height by changing the value of the TimeIntervalSize property to -1. It will auto-fit to the screen height and width.

<Window
    ...
    xmlns:scheduler="using:Syncfusion.UI.Xaml.Scheduler">
    <scheduler:SfScheduler x:Name="Schedule" ViewType="Week">
        <scheduler:SfScheduler.DaysViewSettings>
            <scheduler:DaysViewSettings 
                TimeIntervalSize="-1"/>
            </scheduler:SfScheduler.DaysViewSettings>
    </scheduler:SfScheduler>
</Window>
using Syncfusion.UI.Xaml.Scheduler;

this.Schedule.ViewType = SchedulerViewType.Week;
this.Schedule.DaysViewSettings.TimeIntervalSize = -1;

full-screen-scheduler-in-winui-scheduler-timeslot-views

Change time ruler width

Customize the size of the time ruler view where the labels mentioning the time are placed by using the TimeRulerSize property of DaysViewSettings.

<Window
    ...
    xmlns:scheduler="using:Syncfusion.UI.Xaml.Scheduler">
    <scheduler:SfScheduler x:Name="Schedule" ViewType="Week" >
        <scheduler:SfScheduler.DaysViewSettings>
            <scheduler:DaysViewSettings   
                TimeRulerSize="100">
            </scheduler:DaysViewSettings>
        </scheduler:SfScheduler.DaysViewSettings>
    </scheduler:SfScheduler>
</Window>
using Syncfusion.UI.Xaml.Scheduler;

this.Schedule.ViewType = SchedulerViewType.Week;
this.Schedule.DaysViewSettings.TimeRulerSize = 100;

change-time-ruler-size-in-winui-scheduler-timeslot-views

Minimum appointment duration

The MinimumAppointmentDuration property in DaysViewSettings is used to set an arbitrary height to appointments when they have a minimum duration in the Day, Week, and WorkWeek views, so that the subject remains readable.

<Window
    ...
    xmlns:scheduler="using:Syncfusion.UI.Xaml.Scheduler">
    <scheduler:SfScheduler x:Name="Schedule" 
                       ViewType="Week" >
    </scheduler:SfScheduler>
</Window>
using Syncfusion.UI.Xaml.Scheduler;

this.Schedule.ViewType = SchedulerViewType.Week;
this.Schedule.DaysViewSettings.MinimumAppointmentDuration = new System.TimeSpan(0, 120, 0);

NOTE

  • The MinimumAppointmentDuration value will be applied when an appointment’s duration is less than MinimumAppointmentDuration.
  • The appointment’s duration value will be applied when the appointment’s duration is greater than MinimumAppointmentDuration.
  • The TimeInterval value will be applied when MinimumAppointmentDuration is greater than TimeInterval with a lesser appointment duration.
  • All-day appointments do not support MinimumAppointmentDuration.

Minimum display appointments count in all day panel

You can customize the number of appointments displayed in an all-day panel using the MinimumAllDayAppointmentsCount property of DaysViewSettings in the Scheduler. By default, the appointment display count is 2. If an all-day panel has more than 2 appointments, two appointments will be displayed and the remaining appointments will be displayed as an appointment count.

<Window
    ...
    xmlns:scheduler="using:Syncfusion.UI.Xaml.Scheduler">
    <scheduler:SfScheduler x:Name="Schedule" ViewType="Week">
        <scheduler:SfScheduler.DaysViewSettings>
            <scheduler:DaysViewSettings 
                            MinimumAllDayAppointmentsCount="3"/>
            </scheduler:SfScheduler.DaysViewSettings>
    </scheduler:SfScheduler>
</Window>
using Syncfusion.UI.Xaml.Scheduler;

this.Schedule.ViewType = SchedulerViewType.Week;
this.Schedule.DaysViewSettings.MinimumAllDayAppointmentsCount = 3;

Customize more appointments indicator in all day panel

You can customize the default appearance of the “more appointments” indicator in an all-day panel by using the AllDayMoreAppointmentsIndicatorTemplate property of DaysViewSettings.

<Window
    ...
    xmlns:scheduler="using:Syncfusion.UI.Xaml.Scheduler">
    <scheduler:SfScheduler x:Name="Schedule" ViewType="Week">
        <scheduler:SfScheduler.DaysViewSettings>
            <scheduler:DaysViewSettings>
                <scheduler:DaysViewSettings.AllDayMoreAppointmentsIndicatorTemplate>
                    <DataTemplate >
                        <StackPanel Background="#EAEAEA" HorizontalAlignment="Stretch" VerticalAlignment="Stretch">
                            <TextBlock Text="{Binding}" Foreground="Black" TextAlignment="Center" VerticalAlignment="Center">
                            </TextBlock>
                        </StackPanel>
                    </DataTemplate>
                </scheduler:DaysViewSettings.AllDayMoreAppointmentsIndicatorTemplate>
            </scheduler:DaysViewSettings>
        </scheduler:SfScheduler.DaysViewSettings>
    </scheduler:SfScheduler>
</Window>

all-day-appointment-panel-display-count-appearance-customization-in-WinUI-scheduler-days-week-views

Time ruler text formatting

Customize the format for the labels mentioning the time by setting the TimeRulerFormat property of DaysViewSettings in the Scheduler.

<Window
    ...
    xmlns:scheduler="using:Syncfusion.UI.Xaml.Scheduler">
    <scheduler:SfScheduler x:Name="Schedule" 
                       ViewType="Week" >
    </scheduler:SfScheduler>
</Window>
using Syncfusion.UI.Xaml.Scheduler;

this.Schedule.ViewType = SchedulerViewType.Week;
this.Schedule.DaysViewSettings.TimeRulerFormat = "hh mm";
this.Schedule.DaysViewSettings.TimeInterval = new System.TimeSpan(0, 30, 0);

time-ruler-text-formatting-in-winui-scheduler-timeslot-views

NOTE

  • You can customize the appointment editor time format based on the Scheduler time ruler format and culture.
  • By default, the Scheduler time ruler format is h tt and the appointment editor time picker format is hh:mm tt.

View header

Customize the default appearance of the view header in the Day, Week, and WorkWeek views by setting the ViewHeaderDateFormat, ViewHeaderHeight, ViewHeaderDayFormat, and ViewHeaderTemplate of DaysViewSettings.

View header text formatting

Customize the date and day format of the ViewHeader by using the ViewHeaderDateFormat and ViewHeaderDayFormat properties of DaysViewSettings.

<Window
    ...
    xmlns:scheduler="using:Syncfusion.UI.Xaml.Scheduler">
    <scheduler:SfScheduler x:Name="Schedule" ViewType="Week">
        <scheduler:SfScheduler.DaysViewSettings>
            <scheduler:DaysViewSettings 
                ViewHeaderDayFormat="ddd"
                ViewHeaderDateFormat="dd"/>
            </scheduler:SfScheduler.DaysViewSettings>
    </scheduler:SfScheduler>
</Window>
using Syncfusion.UI.Xaml.Scheduler;

this.Schedule.ViewType = SchedulerViewType.Week;
this.Schedule.DaysViewSettings.ViewHeaderDateFormat = "dd";
this.Schedule.DaysViewSettings.ViewHeaderDayFormat = "ddd";

view-header-text-formatting-in-winui-scheduler-timeslot-views

View header height

Customize the height of the ViewHeader in the Day, Week, and WorkWeek views by setting the ViewHeaderHeight property of DaysViewSettings in SfScheduler.

<Window
    ...
    xmlns:scheduler="using:Syncfusion.UI.Xaml.Scheduler">
    <scheduler:SfScheduler x:Name="Schedule" ViewType="Week">
        <scheduler:SfScheduler.DaysViewSettings>
            <scheduler:DaysViewSettings
                ViewHeaderHeight="100"/>
            </scheduler:SfScheduler.DaysViewSettings>
    </scheduler:SfScheduler>
</Window>
using Syncfusion.UI.Xaml.Scheduler;

this.Schedule.ViewType = SchedulerViewType.Week;
this.Schedule.DaysViewSettings.ViewHeaderHeight = 100;

view-header-height-in-winui-scheduler-timeslot-views

View header appearance customization

Customize the default appearance of the view header by setting the ViewHeaderTemplate property of DaysViewSettings in SfScheduler.

<Window
    ...
    xmlns:scheduler="using:Syncfusion.UI.Xaml.Scheduler">
    <Grid>
        <Grid.Resources>
            <DataTemplate x:Key="viewHeaderTemplate">
                <StackPanel Background="Transparent"  
                    Width="Auto"
                    VerticalAlignment="Center" 
                    HorizontalAlignment="Stretch"
                    Orientation="Vertical">
                <TextBlock 
                    HorizontalAlignment="Left" 
                    VerticalAlignment="Center" 
                    Foreground="#8551F2"
                    FontFamily="Arial"
                    Text="{Binding DateText}"
                    FontSize="25"
                    TextTrimming="CharacterEllipsis"
                    TextWrapping="Wrap" />
                <TextBlock 
                    HorizontalAlignment="Left" 
                    VerticalAlignment="Center" 
                    Foreground="#8551F2"
                    FontFamily="Arial"
                    Text="{Binding DayText}"
                    FontSize="10"
                    TextTrimming="CharacterEllipsis"
                    TextWrapping="Wrap" />
            </StackPanel>
        </DataTemplate>
    </Grid.Resources>
    <scheduler:SfScheduler x:Name="Schedule" ViewType="Week">
        <scheduler:SfScheduler.DaysViewSettings>
            <scheduler:DaysViewSettings 
                ViewHeaderTemplate="{StaticResource viewHeaderTemplate}" />
        </scheduler:SfScheduler.DaysViewSettings>
    </scheduler:SfScheduler>
    </Grid>
</Window>

view-header-appearance-customization-in-winui-scheduler-timeslot-views

Cell right padding

To enhance interaction with a Scheduler’s appointments, you can customize the spacing between appointments and the right border of their cells by using the CellRightPadding property of DaysViewSettings in the SfScheduler.

<Window
    ...
    xmlns:scheduler="using:Syncfusion.UI.Xaml.Scheduler">
    <scheduler:SfScheduler x:Name="Schedule" 
                           ViewType="Week">
        <scheduler:SfScheduler.DaysViewSettings>
            <scheduler:DaysViewSettings CellRightPadding="30"/>
        </scheduler:SfScheduler.DaysViewSettings>
    </scheduler:SfScheduler>
</Window>
using Syncfusion.UI.Xaml.Scheduler;

this.Schedule.ViewType = SchedulerViewType.Week;
this.Schedule.DaysViewSettings.CellRightPadding = 30;

cell-right-padding-support-in-winui-scheduler-timeslot-views

NOTE

  • This customization applies only when the Scheduler has an appointment.