SchedulerCellType Enum

Lists values that specify types of Scheduler cells.

Namespace: DevExpress.Blazor

Assembly: DevExpress.Blazor.v22.1.dll

NuGet Package: DevExpress.Blazor

Declaration

public enum SchedulerCellType

Members

Name	Description
None	The cell has no type.
DateHeader	The date header in the Day, Week, Work Week, or Timeline View.
ResourceHeader	The resource header.
DayOfWeekHeader	The header that displays the day of week in the Month View.
TimeCell	The time cell.
AllDayTimeCell	The time cell for all-day appointments.

Related API Members

The following properties accept/return SchedulerCellType values:

• SchedulerHtmlCellDecorationEventArgs.CellType

Remarks

Use the SchedulerCellType enumeration values to identify types of Scheduler cells.

The following example handles the HtmlCellDecoration event and uses the event argument’s CellType property to customize the appearance of time cells and date headers.

Index.razor

@using Data

<DxScheduler StartDate="@DateTime.Today"
             DataStorage="@DataStorage"
             HtmlCellDecoration="OnHtmlCellDecoration">
    <DxSchedulerWeekView ShowWorkTimeOnly="true"></DxSchedulerWeekView>
</DxScheduler>

@code {
    DxSchedulerDataStorage DataStorage = new DxSchedulerDataStorage() {
        AppointmentsSource = RecurringAppointmentCollection.GetAppointments(),
        AppointmentMappings = new DxSchedulerAppointmentMappings() {
            Type = "AppointmentType",
            Start = "StartDate",
            End = "EndDate",
            Subject = "Caption",
            AllDay = "AllDay",
            Location = "Location",
            Description = "Description",
            LabelId = "Label",
            StatusId = "Status",
            RecurrenceInfo = "Recurrence"
        }
    };
    void OnHtmlCellDecoration(SchedulerHtmlCellDecorationEventArgs args) {
        if (args.CellType == SchedulerCellType.TimeCell && 13 <= args.Intervals.Start.Hour
                          && args.Intervals.Start.Hour < 14)
            args.CssClass = "bg-secondary";
        if (args.CellType == SchedulerCellType.DateHeader)
            args.Style = "background-color: rgb(224, 211, 245);";
    }
}

RecurringAppointment.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace Scheduler.Data {
    public class RecurringAppointment {
        public RecurringAppointment() { }
        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 Status { get; set; }
        public int Label { get; set; }
        public bool AllDay { get; set; }
        public string Recurrence { get; set; }
    }
}

RecurringAppointmentCollection.cs

using System;
using System.Collections.Generic;
using System.Globalization;

namespace Scheduler.Data {
    public static partial class RecurringAppointmentCollection {
        public static List<RecurringAppointment> GetAppointments() {
            DateTime date = DateTimeUtils.GetBeginOfMonth(DateTime.Now);
            date = DateTimeUtils.GetWeekStart(date);
            return new List<RecurringAppointment>() {
            new RecurringAppointment {
                AppointmentType = 1,
                Caption = "Watercolor Landscape",
                Label = 5,
                StartDate = date + (new TimeSpan(2, 9, 30, 0)),
                EndDate = date + (new TimeSpan(2, 11, 0, 0)),
                Recurrence = string.Format("<RecurrenceInfo Start=\"{0}\" End=\"{1}\" WeekDays=\"36\" Id=\"04dcc127-df56-49d7-baff-ce4b6264addd\" OccurrenceCount=\"10\" Range=\"1\" Type=\"1\" />", ToString(date + (new TimeSpan(2, 9, 30, 0))), ToString(date + (new TimeSpan(2, 11, 0, 0))))
            },
            new RecurringAppointment {
                AppointmentType = 1,
                Caption = "Oil Painting for Beginners",
                Label = 2,
                StartDate = date + (new TimeSpan(1, 9, 30, 0)),
                EndDate = date + (new TimeSpan(1, 11, 0, 0)),
                Recurrence = string.Format("<RecurrenceInfo Start=\"{0}\" End=\"{1}\" WeekDays=\"18\" Id=\"72e3db8f-cdb6-4aaa-afe1-e3c6b80ce99e\" OccurrenceCount=\"10\" Range=\"1\" Type=\"1\" />", ToString(date + (new TimeSpan(1, 9, 30, 0))), ToString(date + (new TimeSpan(1, 11, 0, 0))))
            },
            new RecurringAppointment {
                AppointmentType = 1,
                Caption = "Testing",
                Label = 8,
                StartDate = date + (new TimeSpan(1, 12, 0, 0)),
                EndDate = date + (new TimeSpan(1, 13, 0, 0)),
                Recurrence = string.Format("<RecurrenceInfo Start=\"{0}\" End=\"{1}\" WeekDays=\"2\" Id=\"15129fd3-9eb0-4861-8c43-c61844137f17\" OccurrenceCount=\"2\" Frequency=\"2\" Range=\"1\" Type=\"1\" />", ToString(date + (new TimeSpan(1, 12, 0, 0))), ToString(date + (new TimeSpan(1, 13, 0, 0))))
            },
            new RecurringAppointment {
                AppointmentType = 1,
                Caption = "Meeting of Instructors",
                Label = 1,
                StartDate = date + (new TimeSpan(1, 9, 0, 0)),
                EndDate = date + (new TimeSpan(1, 9, 15, 0)),
                Recurrence = string.Format("<RecurrenceInfo Start=\"{0}\" End=\"{1}\" WeekDays=\"62\" Id=\"6de79b21-6b16-4dea-9736-c500058ec858\" OccurrenceCount=\"25\" Range=\"1\" />", ToString(date + (new TimeSpan(1, 9, 0, 0))), ToString(date + (new TimeSpan(1, 9, 15, 0))))
            },
            new RecurringAppointment {
                AppointmentType = 1,
                Caption = "Monthly Planning",
                Label = 1,
                StartDate = date + (new TimeSpan(3, 14, 30, 0)),
                EndDate = date + (new TimeSpan(3, 15, 45, 0)),
                Recurrence = string.Format("<RecurrenceInfo Start=\"{0}\" End=\"{1}\" DayNumber=\"24\" WeekOfMonth=\"0\" Id=\"cd9da802-d166-47d1-a8df-1101fcc50d53\" OccurrenceCount=\"2\" Range=\"1\" Type=\"2\" />", ToString(date + (new TimeSpan(3, 14, 30, 0))), ToString(date + (new TimeSpan(3, 15, 45, 0))))
            },
            new RecurringAppointment {
                AppointmentType = 1,
                Caption = "Annual Open Day",
                Label = 6,
                StartDate = date + (new TimeSpan(27, 9, 30, 0)),
                EndDate = date + (new TimeSpan(27, 13, 0, 0)),
                Recurrence = string.Format("<RecurrenceInfo Start=\"{0}\" Month=\"{1}\" DayNumber=\"{2}\" WeekOfMonth=\"0\" Id=\"bd5dc726-0fa6-4965-99e0-bf69063218e6\" Type=\"3\" />", ToString(date + (new TimeSpan(27, 9, 30, 0))), (date + (new TimeSpan(27, 9, 30, 0))).Month, (date + (new TimeSpan(27, 9, 30, 0))).Day)
            }
        };
        }

        private static string ToString(DateTime dateTime) {
            return dateTime.ToString(CultureInfo.InvariantCulture);
        }

        public static class DateTimeUtils {
            public static DateTime GetWeekStart(DateTime date) {
                return date.DayOfWeek == DayOfWeek.Sunday ? ValidWeekStart(date.Date) : ValidWeekStart(date.Date - CreateWeekOffset(date, DayOfWeek.Sunday));
            }
            public static DateTime GetBeginOfMonth(DateTime date) {
                return new DateTime(date.Year, date.Month, 1);
            }

            static DateTime ValidWeekStart(DateTime date) {
                TimeSpan weekSpan = new TimeSpan(7, 0, 0, 0);
                DateTime baseDate = date.Date;

                if(DateTime.MaxValue - date < weekSpan)
                    return baseDate - weekSpan;
                return baseDate;
            }
            static TimeSpan CreateWeekOffset(DateTime date, DayOfWeek firstDayOfWeek) {
                int offset = (date.DayOfWeek + 7 - firstDayOfWeek) % 7;
                TimeSpan result = TimeSpan.FromDays(offset);
                if(date.Ticks < result.Ticks)
                    result = TimeSpan.FromDays(offset - 7);
                return result;
            }

        }
    }
}