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Cell Customizations in ASP.NET Core Schedule control

The cells of the Scheduler can be easily customized either using the cell template or renderCell event.

Setting cell dimensions in all views

The height and width of the Scheduler cells can be customized either to increase or reduce its size through the cssClass property, which overrides the default CSS applied on cells.

tagHelper
data.cs
@using Syncfusion.EJ2.Schedule

<ejs-schedule id="schedule" height="550" selectedDate="new DateTime(2018, 2, 15)" views="@ViewBag.view" cssClass="schedule-cell-dimension">
    <e-schedule-eventsettings dataSource="@ViewBag.datasource"></e-schedule-eventsettings>
</ejs-schedule>

<style>
    .schedule-cell-dimension.e-schedule .e-vertical-view .e-date-header-wrap table col,
    .schedule-cell-dimension.e-schedule .e-vertical-view .e-content-wrap table col {
        width: 200px;
    }

    .schedule-cell-dimension.e-schedule .e-vertical-view .e-time-cells-wrap table td,
    .schedule-cell-dimension.e-schedule .e-vertical-view .e-work-cells {
        height: 100px;
    }

    .schedule-cell-dimension.e-schedule .e-month-view .e-work-cells,
    .schedule-cell-dimension.e-schedule .e-month-view .e-date-header-wrap table col {
        width: 200px;
    }

    .schedule-cell-dimension.e-schedule .e-month-view .e-work-cells {
        height: 200px;
    }
</style>
public ActionResult Index()
{
    ViewBag.datasource = GetEmployeeEventData();
    List<ScheduleView> viewOption = new List<ScheduleView>()
    {
        new ScheduleView {Option = Syncfusion.EJ2.Schedule.View.Day },
        new ScheduleView {Option = Syncfusion.EJ2.Schedule.View.Week },
        new ScheduleView {Option = Syncfusion.EJ2.Schedule.View.WorkWeek },
        new ScheduleView {Option = Syncfusion.EJ2.Schedule.View.Month }
    };
    ViewBag.view = viewOption;
    return View();
}

public List<EmployeeEventData> GetEmployeeEventData()
{
    List<EmployeeEventData> employeeEventData = new List<EmployeeEventData>();
    employeeEventData.Add(new EmployeeEventData
    { Id = 1,
        Subject = "Project Workflow Analysis",
        StartTime = new DateTime(2018, 2, 14, 9, 0, 0),
        EndTime = new DateTime(2018, 2, 14, 11, 0, 0),
        CategoryColor = "#1aaa55"
    });
    employeeEventData.Add(new EmployeeEventData
    {
        Id = 2,
        Subject = "Project Requirement Planning",
        StartTime = new DateTime(2018, 2, 15, 9, 0, 0),
        EndTime = new DateTime(2018, 2, 15, 11, 0, 0),
        CategoryColor = "#357cd2"
    });
    employeeEventData.Add(new EmployeeEventData
    {
        Id = 3,
        Subject = "Quality Analysis",
        StartTime = new DateTime(2018, 2, 16, 9, 0, 0),
        EndTime = new DateTime(2018, 2, 16, 11, 0, 0),
        CategoryColor = "#7fa900"
    });
    return employeeEventData;
}

public class EmployeeEventData
{
    public int Id { get; set; }
    public string Subject { get; set; }
    public DateTime StartTime { get; set; }
    public DateTime EndTime { get; set; }
    public string CategoryColor { get; set; }
}

Check for cell availability

You can check whether the given time range slots are available for event creation or already occupied by other events using the isSlotAvailable method. In the following code example, if a specific time slot already contains an appointment, then no more appointments can be added to that cell.

tagHelper
data.cs
@using Syncfusion.EJ2.Schedule`

<ejs-schedule id="schedule" height="550" selectedDate="new DateTime(2018, 2, 15)" views="@ViewBag.view" actionBegin="onActionBegin">
    <e-schedule-eventsettings dataSource="@ViewBag.datasource"></e-schedule-eventsettings>
</ejs-schedule>

<script type="text/javascript">
    function onActionBegin(args) {
        var scheduleObj = document.getElementById('schedule').ej2_instances[0];
        if (args.requestType === 'eventCreate' && args.data.length > 0) {
            var eventData = args.data[0];
            var eventField = scheduleObj.eventFields;
            var startDate = eventData[eventField.startTime];
            var endDate = eventData[eventField.endTime];
            args.cancel = !scheduleObj.isSlotAvailable(startDate, endDate);
        }
    }
</script>
public ActionResult Index()
{
    ViewBag.datasource = GetScheduleData();
    List<ScheduleView> viewOption = new List<ScheduleView>()
    {
        new ScheduleView {Option = Syncfusion.EJ2.Schedule.View.Week },
        new ScheduleView {Option = Syncfusion.EJ2.Schedule.View.WorkWeek }
    };
    ViewBag.view = viewOption;
    return View();
}

public List<AppointmentData> GetScheduleData()
{
    List<AppointmentData> appData = new List<AppointmentData>();
    appData.Add(new AppointmentData
    { Id = 1, Subject = "Blue Moon Eclipse", StartTime = new DateTime(2018, 2, 14, 9, 30, 0), EndTime = new DateTime(2018, 2, 14, 11, 0, 0) });
    appData.Add(new AppointmentData
    { Id = 2, Subject = "Meteor Showers in 2018", StartTime = new DateTime(2018, 2, 15, 9, 30, 0), EndTime = new DateTime(2018, 2, 15, 11, 0, 0) });
    appData.Add(new AppointmentData
    { Id = 3, Subject = "Milky Way as Melting pot", StartTime = new DateTime(2018, 2, 16, 9, 30, 0), EndTime = new DateTime(2018, 2, 16, 11, 0, 0) });
    return appData;
}
    
public class AppointmentData
{
    public int Id { get; set; }
    public string Subject { get; set; }
    public DateTime StartTime { get; set; }
    public DateTime EndTime { get; set; }
}

Customizing cells in all the views

It is possible to customize the appearance of the cells using both template options and renderCell event on all the views.

Using template

The cellTemplate option accepts the template string and is used to customize the cell background with specific images or appropriate text on the given date values.

tagHelper
data.cs
@using Syncfusion.EJ2.Schedule

@{
    var template = "${if(type === 'monthCells')}<div class='templatewrap'>${getCellContent(data.date)}</div>${/if}";
}

<ejs-schedule id="schedule" height="550" selectedDate="new DateTime(2017, 12, 15)" views="@ViewBag.view" cellTemplate="@template">
    <e-schedule-eventsettings dataSource="@ViewBag.datasource"></e-schedule-eventsettings>
</ejs-schedule>

<style>
    .e-schedule .e-month-view .e-work-cells {
        position: relative;
    }
    .e-schedule .templatewrap {
        text-align: center;
        position: absolute;
        width: 100%;
    }
    .e-schedule .templatewrap img {
        width: 25px;
        height: 25px;
    }
    .e-schedule .caption {
        overflow: hidden;
        text-overflow: ellipsis;
        vertical-align: middle;
    }
</style>

<script type="text/javascript">
    function getCellContent(date) {
        if (date.getMonth() === 9 && date.getDate() === 31) {
            return '<div class="caption">Thanksgiving day</div>';
        } else if (date.getMonth() === 11 && date.getDate() === 9) {
            return '<div class="caption">Party time</div>';
        } else if (date.getMonth() === 11 && date.getDate() === 13) {
            return '<div class="caption">Party time</div>';
        } else if (date.getMonth() === 11 && date.getDate() === 22) {
            return '<div class="caption">Happy birthday</div>';
        } else if (date.getMonth() === 11 && date.getDate() === 24) {
            return '<div class="caption">Christmas Eve</div>';
        } else if (date.getMonth() === 11 && date.getDate() === 25) {
            return '<div class="caption">Christmas Day</div>';
        } else if (date.getMonth() === 0 && date.getDate() === 1) {
            return '<div class="caption">New Year"s Day</div>';
        } else if (date.getMonth() === 0 && date.getDate() === 14) {
            return '<div class="caption">Get together</div>';
        }
        return '';
    }
</script>
public ActionResult Index()
{
    List<ScheduleView> viewOption = new List<ScheduleView>()
    {
        new ScheduleView { Option = Syncfusion.EJ2.Schedule.View.Month }
    };
    ViewBag.view = viewOption;
    return View();
}

Using renderCell event

An alternative to cellTemplate is the renderCell event, which can also be used to customize the cells with appropriate images or formatted text values.

tagHelper
data.cs
@using Syncfusion.EJ2.Schedule

<ejs-schedule id="schedule" height="550" selectedDate="new DateTime(2018, 2, 15)" views="@ViewBag.view" renderCell="onRenderCell">
</ejs-schedule>

<script type="text/javascript">
    function onRenderCell(args) {
        if (args.element.classList.contains('e-work-hours') && (args.date.getDay() === 1)) {
            args.element.style.background = '#1aaa55';
        } else if (args.element.classList.contains('e-work-hours') && (args.date.getDay() === 2)) {
            args.element.style.background = '#357cd2';
        } else if (args.element.classList.contains('e-work-hours') && (args.date.getDay() === 3)) {
            args.element.style.background = '#e2ff89';
        } else if (args.element.classList.contains('e-work-hours') && (args.date.getDay() === 4)) {
            args.element.style.background = '#f57f17';
        } else if (args.element.classList.contains('e-work-hours') && (args.date.getDay() === 5)) {
            args.element.style.background = '#00bdae';
        }
    }
</script>
public ActionResult Index()
{
    List<ScheduleView> viewOption = new List<ScheduleView>()
    {
        new ScheduleView { Option = Syncfusion.EJ2.Schedule.View.Day },
        new ScheduleView { Option = Syncfusion.EJ2.Schedule.View.Week },
        new ScheduleView { Option = Syncfusion.EJ2.Schedule.View.WorkWeek }
    };
    ViewBag.view = viewOption;
    return View();
}

You can customize cells such as work cells, month cells, all-day cells, header cells, resource header cells using renderCell event by checking the elementType option within the event. You can check elementType with any of the following.

Element type Description
dateHeader triggers on header cell rendering.
monthDay triggers on header cell in month view rendering.
resourceHeader triggers on resource header cell rendering.
alldayCells triggers on all day cell rendering.
emptyCells triggers on empty cell rendering on header bar.
resourceGroupCells triggers on rendering of work cells for parent resource.
workCells triggers on work cell rendering.
monthCells triggers on month cell rendering.
majorSlot triggers on major time slot cell rendering.
minorSlot triggers on minor time slot cell rendering.
weekNumberCell triggers on cell displaying week number.