public bool EnableMultipleResources { get; set; }

<DxScheduler @bind-StartDate="@StartDate"
             DataStorage="@DataStorage"
             GroupType="SchedulerGroupType.Resource"
             CssClass="demo-sc-size"
             AppointmentFormMode="SchedulerAppointmentFormMode.EditForm">
    <DxSchedulerDayView DayCount="2" ShowWorkTimeOnly="true"></DxSchedulerDayView>
</DxScheduler>

@code {
    DateTime StartDate { get; set; } = DateTime.Today;
    DxSchedulerDataStorage DataStorage = new DxSchedulerDataStorage() {
        AppointmentsSource = MultipleResourceAppointmentCollection.GetAppointments(),
        AppointmentMappings = new DxSchedulerAppointmentMappings() {
            Type = "AppointmentType",
            Start = "StartDate",
            End = "EndDate",
            Subject = "Caption",
            AllDay = "AllDay",
            Location = "Location",
            Description = "Description",
            LabelId = "Label",
            StatusId = "Status",
            RecurrenceInfo = "Recurrence",
            ResourceId = "Resources"
        },
        ResourcesSource = ResourceCollection.GetResources(),
        ResourceMappings = new DxSchedulerResourceMappings() {
            Id = "Id",
            Caption = "Name",
            BackgroundCssClass = "BackgroundCss",
            TextCssClass = "TextCss"
        },
        EnableMultipleResources = true
    };
}

public class Appointment {
    public Appointment() { }
    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 string Recurrence { get; set; }
    public int? ResourceId { get; set; }
    public string Resources { get; set; }
    public bool Accepted { get; set; }
}

public static partial class MultipleResourceAppointmentCollection {
    public static List<Appointment> GetAppointments() {
        DateTime date = DateTime.Now.Date;
        return new List<Appointment>() {
            new Appointment {
                Accepted = true,
                Caption = "Install New Router in Dev Room",
                StartDate = date + (new TimeSpan(0, 10, 0, 0)),
                EndDate = date + (new TimeSpan(0, 12, 0, 0)),
                Status = 1,
                Resources = DxSchedulerResourceIdCollection.ToXml(0)
            },
            new Appointment {
                Caption = "Upgrade Personal Computers",
                Accepted = false,
                StartDate = date + (new TimeSpan(0, 13, 0, 0)),
                EndDate = date + (new TimeSpan(0, 14, 30, 0)),
                Status = 2,
                Resources = DxSchedulerResourceIdCollection.ToXml(0, 1)
            },
            new Appointment {
                Caption = "Website Redesign Plan",
                Accepted = false,
                StartDate = date + (new TimeSpan(1, 9, 30, 0)),
                EndDate = date + (new TimeSpan(1, 11, 30, 0)),
                Status = 3,
                Resources = DxSchedulerResourceIdCollection.ToXml(0, 1, 2)
            },
            new Appointment {
                Caption = "Approve Personal Computer Upgrade Plan",
                Accepted = true,
                StartDate = date + (new TimeSpan(0, 14, 0, 0)),
                EndDate = date + (new TimeSpan(0, 16, 0, 0)),
                Status = 2,
                Resources = DxSchedulerResourceIdCollection.ToXml(2, 3, 4)
            },
        };
    }
}

public class Resource {
        public int Id { get; set; }
        public int? GroupId { get; set; }
        public string Name { get; set; }
        public bool IsGroup { get; set; }
        public string TextCss { get; set; }
        public string BackgroundCss { get; set; }
        public string ImageFileName => $"employees/{Id + 1}.jpg";
        public override bool Equals(object obj) {
            Resource resource = obj as Resource;
            return resource != null && resource.Id == Id;
        }
        public override int GetHashCode() {
            return Id;
        }
    }

public static partial class ResourceCollection {
    public static List<Resource> GetResourcesForGrouping() {
        return GetResources().Take(3).ToList();
    }
    public static List<Resource> GetResources() {
        return new List<Resource>() {
            new Resource() { Id=0 , Name="Nancy Davolio", GroupId=100, BackgroundCss="dxbl-green-color", TextCss="text-white" },
            new Resource() { Id=1 , Name="Andrew Fuller", GroupId=101, BackgroundCss="dxbl-orange-color", TextCss="text-white" },
            new Resource() { Id=2 , Name="Janet Leverling", GroupId=100, BackgroundCss="dxbl-purple-color", TextCss="text-white" },
            new Resource() { Id=3 , Name="Margaret Peacock", GroupId=101, BackgroundCss="dxbl-indigo-color", TextCss="text-white" },
            new Resource() { Id=4 , Name="Steven Buchanan", GroupId=100, BackgroundCss="dxbl-red-color", TextCss="text-white" }
        };
    }
    public static List<Resource> GetResourceGroups() {
        return new List<Resource>() {
            new Resource() { Id=100, Name="Sales and Marketing", IsGroup=true },
            new Resource() { Id=101, Name="Engineering", IsGroup=true }
        };
    }
}