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Events in Blazor Scheduler component

In this section, we have provided the list of events of the Scheduler component which will be triggered for appropriate Scheduler actions.

The events should be provided to the Scheduler using ScheduleEvents tag. When using events of Scheduler, TValue must be provided in the ScheduleEvents tag.

ActionCompleted

ActionCompleted event triggers on successful completion of the Scheduler actions.

The action type that can be checked within the ActionCompleted event are as follows.

ActionType Description
EventCreate Triggers once event is created.
EventChange Triggers once event is updated.
EventRemove Triggers once event is deleted.
DateNavigate Triggers once date navigation is performed.
ViewNavigate Triggers once view navigation is performed.
ResourceExpand Triggers once resource is expanded in timeline views.
ResourceCollapse Triggers once resource is collapsed in timeline views.
@using Syncfusion.Blazor.Schedule

<p style="color:green; font-size:20px">@Status</p>
<SfSchedule TValue="AppointmentData" Width="100%" Height="550px" @bind-SelectedDate="@CurrentDate">
    <ScheduleEvents TValue="AppointmentData" ActionCompleted="OnActionCompleted"></ScheduleEvents>
    <ScheduleEventSettings DataSource="@DataSource"></ScheduleEventSettings>
</SfSchedule>

@code{
    DateTime CurrentDate = new DateTime(2020, 3, 10);
    string Status = "";
    public void OnActionCompleted(ActionEventArgs<AppointmentData> args)
    {
        if (args.ActionType == ActionType.EventCreate || args.ActionType == ActionType.EventChange)
        {
            Status = "Success";   //Status become success on create and update of an event.
        }
    }
    List<AppointmentData> DataSource = new List<AppointmentData>
    {
        new AppointmentData { Id = 1, Subject = "Meeting", StartTime = new DateTime(2020, 3, 10, 9, 30, 0) , EndTime = new DateTime(2020, 3, 10, 12, 0, 0) }
    };
    public class AppointmentData
    {
        public int Id { get; set; }
        public string Subject { get; set; }
        public string Location { get; set; }
        public DateTime StartTime { get; set; }
        public DateTime EndTime { get; set; }
        public string Description { get; set; }
        public bool IsAllDay { get; set; }
        public string RecurrenceRule { get; set; }
        public string RecurrenceException { get; set; }
        public Nullable<int> RecurrenceID { get; set; }
    }
}

Created

Created event triggers after the Scheduler component is created.

@using Syncfusion.Blazor.Schedule

<SfSchedule TValue="AppointmentData" Width="100%" Height="550px" @bind-SelectedDate="@CurrentDate">
    <ScheduleEvents TValue="AppointmentData" Created="OnCreated"></ScheduleEvents>
    <ScheduleEventSettings DataSource="@DataSource"></ScheduleEventSettings>
</SfSchedule>

@code{
    DateTime CurrentDate = new DateTime(2020, 3, 10);
    public void OnCreated()
    {
        //Here you can customize your code
    }
    List<AppointmentData> DataSource = new List<AppointmentData>
    {
        new AppointmentData { Id = 1, Subject = "Meeting", StartTime = new DateTime(2020, 3, 10, 9, 30, 0) , EndTime = new DateTime(2020, 3, 10, 12, 0, 0) }
    };
    public class AppointmentData
    {
        public int Id { get; set; }
        public string Subject { get; set; }
        public string Location { get; set; }
        public DateTime StartTime { get; set; }
        public DateTime EndTime { get; set; }
        public string Description { get; set; }
        public bool IsAllDay { get; set; }
        public string RecurrenceRule { get; set; }
        public string RecurrenceException { get; set; }
        public Nullable<int> RecurrenceID { get; set; }
    }
}

DataBinding

DataBinding event triggers before the data binds to the Scheduler.

@using Syncfusion.Blazor.Schedule

<SfSchedule TValue="AppointmentData" Width="100%" Height="550px" @bind-SelectedDate="@CurrentDate">
    <ScheduleEvents TValue="AppointmentData" DataBinding="DataBindHandler"></ScheduleEvents>
    <ScheduleEventSettings DataSource="@DataSource"></ScheduleEventSettings>
</SfSchedule>

@code{
    DateTime CurrentDate = new DateTime(2020, 3, 10);
    public void DataBindHandler(DataBindingEventArgs<AppointmentData> args)
    {
        //Triggers before the data binds to the scheduler, while performing CRUD actions, View and Date navigations
    }
    List<AppointmentData> DataSource = new List<AppointmentData>
    {
        new AppointmentData { Id = 1, Subject = "Meeting", StartTime = new DateTime(2020, 3, 10, 9, 30, 0) , EndTime = new DateTime(2020, 3, 10, 12, 0, 0) }
    };
    public class AppointmentData
    {
        public int Id { get; set; }
        public string Subject { get; set; }
        public string Location { get; set; }
        public DateTime StartTime { get; set; }
        public DateTime EndTime { get; set; }
        public string Description { get; set; }
        public bool IsAllDay { get; set; }
        public string RecurrenceRule { get; set; }
        public string RecurrenceException { get; set; }
        public Nullable<int> RecurrenceID { get; set; }
    }
}

DataBound

DataBound event triggers once the event data is bound to the Scheduler.

@using Syncfusion.Blazor.Schedule

<SfSchedule TValue="AppointmentData" @ref="@ScheduleRef" Width="100%" Height="550px" @bind-SelectedDate="@CurrentDate">
    <ScheduleEvents TValue="AppointmentData" DataBound="OnDataBound"></ScheduleEvents>
    <ScheduleEventSettings DataSource="@DataSource"></ScheduleEventSettings>
</SfSchedule>

@code{
    DateTime CurrentDate = new DateTime(2020, 3, 10);
    SfSchedule<AppointmentData> ScheduleRef;
    public async Task OnDataBound(DataBoundEventArgs<AppointmentData> args)
    {
        List<AppointmentData> eventCollection = await ScheduleRef.GetEvents();   //You can get the entire appointment collections in the EventCollection variable
    }
    List<AppointmentData> DataSource = new List<AppointmentData>
    {
        new AppointmentData { Id = 1, Subject = "Meeting", StartTime = new DateTime(2020, 3, 10, 9, 30, 0) , EndTime = new DateTime(2020, 3, 10, 12, 0, 0) }
    };
    public class AppointmentData
    {
        public int Id { get; set; }
        public string Subject { get; set; }
        public string Location { get; set; }
        public DateTime StartTime { get; set; }
        public DateTime EndTime { get; set; }
        public string Description { get; set; }
        public bool IsAllDay { get; set; }
        public string RecurrenceRule { get; set; }
        public string RecurrenceException { get; set; }
        public Nullable<int> RecurrenceID { get; set; }
    }
}

Destroyed

Destroyed event triggers when the Scheduler component is destroyed.

@using Syncfusion.Blazor.Schedule

<SfSchedule TValue="AppointmentData" Width="100%" Height="550px" @bind-SelectedDate="@CurrentDate">
    <ScheduleEvents TValue="AppointmentData" Destroyed="OnDestroyed"></ScheduleEvents>
    <ScheduleEventSettings DataSource="@DataSource"></ScheduleEventSettings>
</SfSchedule>

@code{
    DateTime CurrentDate = new DateTime(2020, 3, 10);
    public void OnDestroyed()
    {
        //Here you can customize your code
    }
    List<AppointmentData> DataSource = new List<AppointmentData>
    {
        new AppointmentData { Id = 1, Subject = "Meeting", StartTime = new DateTime(2020, 3, 10, 9, 30, 0) , EndTime = new DateTime(2020, 3, 10, 12, 0, 0) }
    };
    public class AppointmentData
    {
        public int Id { get; set; }
        public string Subject { get; set; }
        public string Location { get; set; }
        public DateTime StartTime { get; set; }
        public DateTime EndTime { get; set; }
        public string Description { get; set; }
        public bool IsAllDay { get; set; }
        public string RecurrenceRule { get; set; }
        public string RecurrenceException { get; set; }
        public Nullable<int> RecurrenceID { get; set; }
    }
}

Dragged

Dragged event triggers when the dragging of appointment is stopped.

@using Syncfusion.Blazor.Schedule

<SfSchedule TValue="AppointmentData" @ref="@ScheduleObj" Width="100%" Height="550px" @bind-SelectedDate="@CurrentDate">
    <ScheduleEvents TValue="AppointmentData" Dragged="OnDragged"></ScheduleEvents>
    <ScheduleEventSettings DataSource="@DataSource"></ScheduleEventSettings>
</SfSchedule>

@code{
    DateTime CurrentDate = new DateTime(2020, 3, 10);
    SfSchedule<AppointmentData> ScheduleObj;
    public async Task OnDragged(DragEventArgs<AppointmentData> args)
    {
        await ScheduleObj.OpenEditor(args.Data, CurrentAction.Save);   //To open the editor window at drag stop
    }
    List<AppointmentData> DataSource = new List<AppointmentData>
    {
        new AppointmentData { Id = 1, Subject = "Meeting", StartTime = new DateTime(2020, 3, 10, 9, 30, 0) , EndTime = new DateTime(2020, 3, 10, 12, 0, 0) }
    };
    public class AppointmentData
    {
        public int Id { get; set; }
        public string Subject { get; set; }
        public string Location { get; set; }
        public DateTime StartTime { get; set; }
        public DateTime EndTime { get; set; }
        public string Description { get; set; }
        public bool IsAllDay { get; set; }
        public string RecurrenceRule { get; set; }
        public string RecurrenceException { get; set; }
        public Nullable<int> RecurrenceID { get; set; }
    }
}

EventRendered

EventRendered event triggers before each of the event getting rendered on the Scheduler user interface.

@using Syncfusion.Blazor.Schedule

<SfSchedule TValue="AppointmentData" Width="100%" Height="550px" @bind-SelectedDate="@CurrentDate">
    <ScheduleEvents TValue="AppointmentData" EventRendered="OnEventRendered"></ScheduleEvents>
    <ScheduleEventSettings DataSource="@DataSource"></ScheduleEventSettings>
</SfSchedule>
<style>
    .e-schedule .e-vertical-view .e-all-day-appointment-wrapper .e-appointment.custom-class,
    .e-schedule .e-vertical-view .e-day-wrapper .e-appointment.custom-class,
    .e-schedule .e-month-view .e-appointment.custom-class {
        background: yellow;
        color: red;
    }
</style>

@code{
    private DateTime CurrentDate = new DateTime(2020, 3, 10);
    public string[] CustomClass = { "custom-class" };
    public void OnEventRendered(EventRenderedArgs<AppointmentData> args)
    {
        args.CssClasses = new List<string>(CustomClass);
    }
    List<AppointmentData> DataSource = new List<AppointmentData>
    {
        new AppointmentData { Id = 1, Subject = "Meeting", StartTime = new DateTime(2020, 3, 10, 9, 30, 0) , EndTime = new DateTime(2020, 3, 10, 12, 0, 0) }
    };
    public class AppointmentData
    {
        public int Id { get; set; }
        public string Subject { get; set; }
        public string Location { get; set; }
        public DateTime StartTime { get; set; }
        public DateTime EndTime { get; set; }
        public string Description { get; set; }
        public bool IsAllDay { get; set; }
        public string RecurrenceRule { get; set; }
        public string RecurrenceException { get; set; }
        public Nullable<int> RecurrenceID { get; set; }
    }
}

MoreEventsClicked

MoreEventsClicked event triggers when the more events indicator are clicked.

@using Syncfusion.Blazor.Schedule

<SfSchedule TValue="AppointmentData" Width="100%" Height="550px" @bind-SelectedDate="@CurrentDate" @bind-CurrentView="@CurrentView">
    <ScheduleEvents TValue="AppointmentData" MoreEventsClicked="OnMoreEventsClick"></ScheduleEvents>
    <ScheduleEventSettings DataSource="@DataSource"></ScheduleEventSettings>
</SfSchedule>

@code{
    DateTime CurrentDate = new DateTime(2020, 3, 10);
    View CurrentView = View.Month;
    public void OnMoreEventsClick(MoreEventsClickArgs args)
    {
        args.Cancel = true;   //To prevent showing the appointments in more indiactor
    }
    List<AppointmentData> DataSource = new List<AppointmentData>
    {
        new AppointmentData { Id = 1, Subject = "Meeting In", StartTime = new DateTime(2020, 3, 10, 9, 30, 0) , EndTime = new DateTime(2020, 3, 10, 12, 0, 0) },
        new AppointmentData { Id = 2, Subject = "Conference", StartTime = new DateTime(2020, 3, 11, 9, 30, 0) , EndTime = new DateTime(2020, 3, 11, 12, 0, 0) },
        new AppointmentData { Id = 3, Subject = "Meeting Out", StartTime = new DateTime(2020, 3, 11, 9, 30, 0) , EndTime = new DateTime(2020, 3, 11, 12, 0, 0) }
    };
    public class AppointmentData
    {
        public int Id { get; set; }
        public string Subject { get; set; }
        public string Location { get; set; }
        public DateTime StartTime { get; set; }
        public DateTime EndTime { get; set; }
        public string Description { get; set; }
        public bool IsAllDay { get; set; }
        public string RecurrenceRule { get; set; }
        public string RecurrenceException { get; set; }
        public Nullable<int> RecurrenceID { get; set; }
    }
}

Navigating event triggers before the date or view navigation takes place on Scheduler.

@using Syncfusion.Blazor.Schedule

<SfSchedule TValue="AppointmentData" Width="100%" Height="550px" @bind-SelectedDate="@CurrentDate">
    <ScheduleEvents TValue="AppointmentData" Navigating="OnNavigating"></ScheduleEvents>
    <ScheduleEventSettings DataSource="@DataSource"></ScheduleEventSettings>
</SfSchedule>

@code{
    DateTime CurrentDate = new DateTime(2020, 3, 10);
    public void OnNavigating(NavigatingEventArgs args)
    {
        if (args.Action == "date") {
            args.Cancel = true;   //To prevent date navigation
        }
    }
    List<AppointmentData> DataSource = new List<AppointmentData>
    {
        new AppointmentData { Id = 1, Subject = "Meeting", StartTime = new DateTime(2020, 3, 10, 9, 30, 0) , EndTime = new DateTime(2020, 3, 10, 12, 0, 0) }
    };
    public class AppointmentData
    {
        public int Id { get; set; }
        public string Subject { get; set; }
        public string Location { get; set; }
        public DateTime StartTime { get; set; }
        public DateTime EndTime { get; set; }
        public string Description { get; set; }
        public bool IsAllDay { get; set; }
        public string RecurrenceRule { get; set; }
        public string RecurrenceException { get; set; }
        public Nullable<int> RecurrenceID { get; set; }
    }
}

OnActionBegin

OnActionBegin event triggers on beginning of every Scheduler action.

The request type that can be checked within the OnActionBegin event are as follows.

ActionType Description
EventCreate Triggers on Creating new event.
EventChange Triggers on updating an event.
EventRemove Triggers on Deleting an event.
DateNavigate Triggers while performing date navigations.
ViewNavigate Triggers while performing view navigations.
ResourceExpand Triggers while expanding resource on timeline views.
ViewNavigate Triggers while collapsing resource on timeline views.
@using Syncfusion.Blazor.Schedule

<SfSchedule TValue="AppointmentData" Width="100%" Height="550px" @bind-SelectedDate="@CurrentDate">
    <ScheduleEvents TValue="AppointmentData" OnActionBegin="OnActionBegin"></ScheduleEvents>
    <ScheduleEventSettings DataSource="@DataSource"></ScheduleEventSettings>
</SfSchedule>

@code{
    DateTime CurrentDate = new DateTime(2020, 3, 10);
    public void OnActionBegin(ActionEventArgs<AppointmentData> args)
    {
        if (args.ActionType == ActionType.EventRemove)   //To check for request type is event delete
        {
            args.Cancel = true;   //To prevent the appointment deletion
        }
    }
    List<AppointmentData> DataSource = new List<AppointmentData>
    {
        new AppointmentData { Id = 1, Subject = "Meeting", StartTime = new DateTime(2020, 3, 10, 9, 30, 0) , EndTime = new DateTime(2020, 3, 10, 12, 0, 0) }
    };
    public class AppointmentData
    {
        public int Id { get; set; }
        public string Subject { get; set; }
        public string Location { get; set; }
        public DateTime StartTime { get; set; }
        public DateTime EndTime { get; set; }
        public string Description { get; set; }
        public bool IsAllDay { get; set; }
        public string RecurrenceRule { get; set; }
        public string RecurrenceException { get; set; }
        public Nullable<int> RecurrenceID { get; set; }
    }
}

OnActionFailure

OnActionFailure event triggers when a Scheduler action gets failed or interrupted.

@using Syncfusion.Blazor.Schedule

<SfSchedule TValue="AppointmentData" Width="100%" Height="550px" @bind-SelectedDate="@CurrentDate">
    <ScheduleEvents TValue="AppointmentData" OnActionFailure="OnActionFailure"></ScheduleEvents>
    <ScheduleEventSettings DataSource="@DataSource"></ScheduleEventSettings>
</SfSchedule>

@code{
    DateTime CurrentDate = new DateTime(2020, 3, 10);
    public void OnActionFailure(ActionEventArgs<AppointmentData> args)
    {
        //args.Error catches the failure details.
    }
    List<AppointmentData> DataSource = new List<AppointmentData>
    {
        new AppointmentData { Id = 1, Subject = "Meeting", StartTime = new DateTime(2020, 3, 10, 9, 30, 0) , EndTime = new DateTime(2020, 3, 10, 12, 0, 0) }
    };
    public class AppointmentData
    {
        public int Id { get; set; }
        public string Subject { get; set; }
        public string Location { get; set; }
        public DateTime StartTime { get; set; }
        public DateTime EndTime { get; set; }
        public string Description { get; set; }
        public bool IsAllDay { get; set; }
        public string RecurrenceRule { get; set; }
        public string RecurrenceException { get; set; }
        public Nullable<int> RecurrenceID { get; set; }
    }
}

OnCellClick

OnCellClick event triggers when the Scheduler cells are single clicked or on single tap on the same cells in mobile devices.

@using Syncfusion.Blazor.Schedule

<SfSchedule TValue="AppointmentData" @ref="@ScheduleRef" Width="100%" Height="550px" @bind-SelectedDate="@CurrentDate">
    <ScheduleEvents TValue="AppointmentData" OnCellClick="OnCellClick"></ScheduleEvents>
    <ScheduleEventSettings DataSource="@DataSource"></ScheduleEventSettings>
</SfSchedule>

@code{
    DateTime CurrentDate = new DateTime(2020, 3, 10);
    SfSchedule<AppointmentData> ScheduleRef;
    public async Task OnCellClick(CellClickEventArgs args)
    {
        args.cancel = true;
        await ScheduleRef.OpenEditor(args, CurrentAction.Add);   //To open editor window on cell click
    }
    List<AppointmentData> DataSource = new List<AppointmentData>
    {
        new AppointmentData { Id = 1, Subject = "Meeting", StartTime = new DateTime(2020, 3, 10, 9, 30, 0) , EndTime = new DateTime(2020, 3, 10, 12, 0, 0) }
    };
    public class AppointmentData
    {
        public int Id { get; set; }
        public string Subject { get; set; }
        public string Location { get; set; }
        public DateTime StartTime { get; set; }
        public DateTime EndTime { get; set; }
        public string Description { get; set; }
        public bool IsAllDay { get; set; }
        public string RecurrenceRule { get; set; }
        public string RecurrenceException { get; set; }
        public Nullable<int> RecurrenceID { get; set; }
    }
}

OnCellDoubleClick

OnCellDoubleClick event triggers when the Scheduler cells are double clicked.

@using Syncfusion.Blazor.Schedule

<SfSchedule TValue="AppointmentData" Width="100%" Height="550px" @bind-SelectedDate="@CurrentDate">
    <ScheduleEvents TValue="AppointmentData" OnCellDoubleClick="OnCellDoubleClick"></ScheduleEvents>
    <ScheduleEventSettings DataSource="@DataSource"></ScheduleEventSettings>
</SfSchedule>

@code{
    DateTime CurrentDate = new DateTime(2020, 3, 10);
    public void OnCellDoubleClick(CellClickEventArgs args)
    {
        args.Cancel = true;   //To prevent the opening of editor window on cells alone.
    }
    List<AppointmentData> DataSource = new List<AppointmentData>
    {
        new AppointmentData { Id = 1, Subject = "Meeting", StartTime = new DateTime(2020, 3, 10, 9, 30, 0) , EndTime = new DateTime(2020, 3, 10, 12, 0, 0) }
    };
    public class AppointmentData
    {
        public int Id { get; set; }
        public string Subject { get; set; }
        public string Location { get; set; }
        public DateTime StartTime { get; set; }
        public DateTime EndTime { get; set; }
        public string Description { get; set; }
        public bool IsAllDay { get; set; }
        public string RecurrenceRule { get; set; }
        public string RecurrenceException { get; set; }
        public Nullable<int> RecurrenceID { get; set; }
    }
}

OnDragStart

OnDragStart event triggers when an appointment is started to drag.

@using Syncfusion.Blazor.Schedule

<SfSchedule TValue="AppointmentData" Width="100%" Height="550px" @bind-SelectedDate="@CurrentDate">
    <ScheduleEvents TValue="AppointmentData" OnDragStart="OnDragStart"></ScheduleEvents>
    <ScheduleEventSettings DataSource="@DataSource"></ScheduleEventSettings>
</SfSchedule>

@code{
    DateTime CurrentDate = new DateTime(2020, 3, 10);
    public void OnDragStart(DragEventArgs<AppointmentData> args)
    {
        args.Scroll.Enable = false;   //To prevent scroll action on dragging
    }
    List<AppointmentData> DataSource = new List<AppointmentData>
    {
        new AppointmentData { Id = 1, Subject = "Meeting", StartTime = new DateTime(2020, 3, 10, 9, 30, 0) , EndTime = new DateTime(2020, 3, 10, 12, 0, 0) }
    };
    public class AppointmentData
    {
        public int Id { get; set; }
        public string Subject { get; set; }
        public string Location { get; set; }
        public DateTime StartTime { get; set; }
        public DateTime EndTime { get; set; }
        public string Description { get; set; }
        public bool IsAllDay { get; set; }
        public string RecurrenceRule { get; set; }
        public string RecurrenceException { get; set; }
        public Nullable<int> RecurrenceID { get; set; }
    }
}

OnEventClick

OnEventClick event triggers when the events are single clicked or on single tapping the events on the mobile devices.

@using Syncfusion.Blazor.Schedule

<SfSchedule TValue="AppointmentData" @ref="@ScheduleRef" Width="100%" Height="550px" @bind-SelectedDate="@CurrentDate">
    <ScheduleEvents TValue="AppointmentData" OnEventClick="OnEventClick"></ScheduleEvents>
    <ScheduleEventSettings DataSource="@DataSource"></ScheduleEventSettings>
</SfSchedule>

@code{
    DateTime CurrentDate = new DateTime(2020, 3, 10);
    SfSchedule<AppointmentData> ScheduleRef;
    public async Task OnEventClick(EventClickArgs<AppointmentData> args)
    {
        args.cancel = true;
        await ScheduleRef.OpenEditor(args.Event, CurrentAction.Save);   //To open the editor on event click
    }
    List<AppointmentData> DataSource = new List<AppointmentData>
    {
        new AppointmentData { Id = 1, Subject = "Meeting", StartTime = new DateTime(2020, 3, 10, 9, 30, 0) , EndTime = new DateTime(2020, 3, 10, 12, 0, 0) }
    };
    public class AppointmentData
    {
        public int Id { get; set; }
        public string Subject { get; set; }
        public string Location { get; set; }
        public DateTime StartTime { get; set; }
        public DateTime EndTime { get; set; }
        public string Description { get; set; }
        public bool IsAllDay { get; set; }
        public string RecurrenceRule { get; set; }
        public string RecurrenceException { get; set; }
        public Nullable<int> RecurrenceID { get; set; }
    }
}

OnEventDoubleClick

OnEventDoubleClick event triggers when the events are double clicked.

@using Syncfusion.Blazor.Schedule

<SfSchedule TValue="AppointmentData" @ref="@ScheduleRef" Width="100%" Height="550px" @bind-SelectedDate="@CurrentDate">
    <ScheduleEvents TValue="AppointmentData" OnEventDoubleClick="OnEventDoubleClick"></ScheduleEvents>
    <ScheduleEventSettings DataSource="@DataSource"></ScheduleEventSettings>
</SfSchedule>

@code{
    DateTime CurrentDate = new DateTime(2020, 3, 10);
    SfSchedule<AppointmentData> ScheduleRef;
    public async Task OnEventDoubleClick(EventClickArgs<AppointmentData> args)
    {
        args.Cancel = true;
        await ScheduleRef.OpenQuickInfoPopup(args.Event); //To open Quick popup on double click
    }

    List<AppointmentData> DataSource = new List<AppointmentData>
    {
        new AppointmentData { Id = 1, Subject = "Meeting", StartTime = new DateTime(2020, 3, 10, 9, 30, 0) , EndTime = new DateTime(2020, 3, 10, 12, 0, 0) }
    };
    public class AppointmentData
    {
        public int Id { get; set; }
        public string Subject { get; set; }
        public string Location { get; set; }
        public DateTime StartTime { get; set; }
        public DateTime EndTime { get; set; }
        public string Description { get; set; }
        public bool IsAllDay { get; set; }
        public string RecurrenceRule { get; set; }
        public string RecurrenceException { get; set; }
        public Nullable<int> RecurrenceID { get; set; }
    }
}

OnPopupClose

OnPopupClose event triggers before any of the Scheduler popups close on the page.

In case, if you need to prevent only specific popups on Scheduler, then you can check the condition based on the popup type. The types of the popup that can be checked within the OnPopupClose event are as follows.

PopupType Description
Editor For Detailed editor window.
QuickInfo For Quick popup which opens on cell click.
EditEventInfo For Quick popup which opens on event click.
ViewEventInfo For Quick popup which opens on responsive mode.
EventContainer For more event indicator popup.
RecurrenceAlert For edit recurrence event alert popup.
DeleteAlert For delete confirmation popup.
ValidationAlert For validation alert popup.
RecurrenceValidationAlert For recurrence validation alert popup.
@using Syncfusion.Blazor.Schedule

<SfSchedule TValue="AppointmentData" Width="100%" Height="550px" @bind-SelectedDate="@CurrentDate">
    <ScheduleEvents TValue="AppointmentData" OnPopupClose="OnPopupClose"></ScheduleEvents>
    <ScheduleEventSettings DataSource="@DataSource"></ScheduleEventSettings>
</SfSchedule>

@code{
    DateTime CurrentDate = new DateTime(2020, 3, 10);
    public void OnPopupClose(PopupCloseEventArgs<AppointmentData> args)
    {
        if (args.Type == PopupType.Editor || args.Type == PopupType.QuickInfo)
        {
            args.Data.Subject = (args.Data.Subject == "Add title") ? "New event" : args.Data.Subject;   //The default subject is changed from Add Title to New event
        }
    }
    List<AppointmentData> DataSource = new List<AppointmentData>
    {
        new AppointmentData { Id = 1, Subject = "Meeting", StartTime = new DateTime(2020, 3, 10, 9, 30, 0) , EndTime = new DateTime(2020, 3, 10, 12, 0, 0) }
    };
    public class AppointmentData
    {
        public int Id { get; set; }
        public string Subject { get; set; }
        public string Location { get; set; }
        public DateTime StartTime { get; set; }
        public DateTime EndTime { get; set; }
        public string Description { get; set; }
        public bool IsAllDay { get; set; }
        public string RecurrenceRule { get; set; }
        public string RecurrenceException { get; set; }
        public Nullable<int> RecurrenceID { get; set; }
    }
}

OnPopupOpen

OnPopupOpen event triggers before any of the Scheduler popups opens on the page.

In case, if you need to prevent only specific popups on Scheduler, then you can check the condition based on the popup type. The types of the popup that can be checked within the OnPopupOpen event are as follows.

PopupType Description
Editor For Detailed editor window.
QuickInfo For Quick popup which opens on cell click.
EditEventInfo For Quick popup which opens on event click.
ViewEventInfo For Quick popup which opens on responsive mode.
EventContainer For more event indicator popup.
RecurrenceAlert For edit recurrence event alert popup.
DeleteAlert For delete confirmation popup.
ValidationAlert For validation alert popup.
RecurrenceValidationAlert For recurrence validation alert popup.
@using Syncfusion.Blazor.Schedule

<SfSchedule TValue="AppointmentData" Width="100%" Height="550px" @bind-SelectedDate="@CurrentDate">
    <ScheduleEvents TValue="AppointmentData" OnPopupOpen="OnPopupOpen"></ScheduleEvents>
    <ScheduleEventSettings DataSource="@DataSource"></ScheduleEventSettings>
</SfSchedule>

@code{
    DateTime CurrentDate = new DateTime(2020, 3, 10);
    public void OnPopupOpen(PopupOpenEventArgs<AppointmentData> args)
    {
        if (args.Type == PopupType.ValidationAlert)
        {
            args.Cancel = true;   //To prevent start and end time validation alert
        }
    }
    List<AppointmentData> DataSource = new List<AppointmentData>
    {
        new AppointmentData { Id = 1, Subject = "Meeting", StartTime = new DateTime(2020, 3, 10, 9, 30, 0) , EndTime = new DateTime(2020, 3, 10, 12, 0, 0) }
    };
    public class AppointmentData
    {
        public int Id { get; set; }
        public string Subject { get; set; }
        public string Location { get; set; }
        public DateTime StartTime { get; set; }
        public DateTime EndTime { get; set; }
        public string Description { get; set; }
        public bool IsAllDay { get; set; }
        public string RecurrenceRule { get; set; }
        public string RecurrenceException { get; set; }
        public Nullable<int> RecurrenceID { get; set; }
    }
}

OnRenderCell

OnRenderCell event triggers before each element of the Schedule rendering on the page.

The ElementType that can be checked within the OnRenderCell event are as follows.

ElementType Description
AllDayCells Triggers on all day cell rendering.
DateHeader Triggers on header cell rendering.
EmptyCells Triggers on empty cell rendering on header bar.
MajorSlot Triggers on major time slot cell rendering.
MinorSlot Triggers on minor time slot cell rendering.
MonthCells Triggers on month cell rendering.
MonthDay Triggers on header cell in month view rendering.
ResourceGroupCells Triggers on rendering of work cells for parent resource.
ResourceHeader Triggers on resource header cell rendering.
WorkCells Triggers on work cell rendering.
@using Syncfusion.Blazor.Schedule

<SfSchedule TValue="AppointmentData" Width="100%" Height="550px" @bind-SelectedDate="@CurrentDate">
    <ScheduleEvents TValue="AppointmentData" OnRenderCell="OnRenderCell"></ScheduleEvents>
    <ScheduleEventSettings DataSource="@DataSource"></ScheduleEventSettings>
</SfSchedule>
<style>
    .e-schedule .e-vertical-view .e-work-hours.custom-class {
        background-color: ivory;
    }
</style>

@code{
    DateTime CurrentDate = new DateTime(2020, 3, 10);
    public string[] CustomClass = { "custom-class" };
    public void OnRenderCell(RenderCellEventArgs args)
    {
        if (args.ElementType == ElementType.WorkCells)
        {
            args.CssClasses = new List<string>(CustomClass); //The default work hours color is changed to ivory color
        }
    }
    List<AppointmentData> DataSource = new List<AppointmentData>
    {
        new AppointmentData { Id = 1, Subject = "Meeting", StartTime = new DateTime(2020, 3, 10, 9, 30, 0) , EndTime = new DateTime(2020, 3, 10, 12, 0, 0) }
    };
    public class AppointmentData
    {
        public int Id { get; set; }
        public string Subject { get; set; }
        public string Location { get; set; }
        public DateTime StartTime { get; set; }
        public DateTime EndTime { get; set; }
        public string Description { get; set; }
        public bool IsAllDay { get; set; }
        public string RecurrenceRule { get; set; }
        public string RecurrenceException { get; set; }
        public Nullable<int> RecurrenceID { get; set; }
    }
}

OnResizeStart

OnResizeStart event triggers when an appointment is started to resize.

@using Syncfusion.Blazor.Schedule

<SfSchedule TValue="AppointmentData" Width="100%" Height="550px" @bind-SelectedDate="@CurrentDate">
    <ScheduleEvents TValue="AppointmentData" OnResizeStart="OnResizeStart"></ScheduleEvents>
    <ScheduleEventSettings DataSource="@DataSource"></ScheduleEventSettings>
</SfSchedule>

@code{
    DateTime CurrentDate = new DateTime(2020, 3, 10);
    public void OnResizeStart(ResizeEventArgs<AppointmentData> args)
    {
        args.Scroll.Enable = false;   //To prevent scrolling will resize the event
        args.Interval = 10;   //To change the resizing time imterval from 30 minutes(default) to 10 minutes
    }
    List<AppointmentData> DataSource = new List<AppointmentData>
    {
        new AppointmentData { Id = 1, Subject = "Meeting", StartTime = new DateTime(2020, 3, 10, 9, 30, 0) , EndTime = new DateTime(2020, 3, 10, 12, 0, 0) }
    };
    public class AppointmentData
    {
        public int Id { get; set; }
        public string Subject { get; set; }
        public string Location { get; set; }
        public DateTime StartTime { get; set; }
        public DateTime EndTime { get; set; }
        public string Description { get; set; }
        public bool IsAllDay { get; set; }
        public string RecurrenceRule { get; set; }
        public string RecurrenceException { get; set; }
        public Nullable<int> RecurrenceID { get; set; }
    }
}

Resized

Resized event triggers when the resizing of appointment is stopped.

@using Syncfusion.Blazor.Schedule

<SfSchedule TValue="AppointmentData" Width="100%" Height="550px" @bind-SelectedDate="@CurrentDate">
    <ScheduleEvents TValue="AppointmentData" Resized="OnResized"></ScheduleEvents>
    <ScheduleEventSettings DataSource="@DataSource"></ScheduleEventSettings>
</SfSchedule>

@code{
    DateTime CurrentDate = new DateTime(2020, 3, 10);
    public void OnResized(ResizeEventArgs<AppointmentData> args)
    {
        args.Cancel = true;   //To prevent resize action
    }
    List<AppointmentData> DataSource = new List<AppointmentData>
    {
        new AppointmentData { Id = 1, Subject = "Meeting", StartTime = new DateTime(2020, 3, 10, 9, 30, 0) , EndTime = new DateTime(2020, 3, 10, 12, 0, 0) }
    };
    public class AppointmentData
    {
        public int Id { get; set; }
        public string Subject { get; set; }
        public string Location { get; set; }
        public DateTime StartTime { get; set; }
        public DateTime EndTime { get; set; }
        public string Description { get; set; }
        public bool IsAllDay { get; set; }
        public string RecurrenceRule { get; set; }
        public string RecurrenceException { get; set; }
        public Nullable<int> RecurrenceID { get; set; }
    }
}