Error when using "View.Agenda" version 19.3.0.44

[Martin]

In my Blazor app I use the scheduler in 2 places. Both utilse the same data source. The full view works fine, but if i add in "View.Agenda" I get an error.

Full view - works fine:

    <SfSchedule @ref="ScheduleRef" TValue=AppointmentData Width="100%" Height="875px">

        <ScheduleEventSettings DataSource="@ calendarToday "></ScheduleEventSettings>

        <ScheduleEvents TValue="AppointmentData" ActionCompleted="OnActionCompleted"></ScheduleEvents>

        <ScheduleWorkHours Highlight="true" Start="09:00" End="17:00"></ScheduleWorkHours>

    </SfSchedule>

Agenda View - Errors:

                                    <SfSchedule @ref="ScheduleRef" TValue="AppointmentData" HideEmptyAgendaDays="true" AgendaDaysCount="7" CssClass="ScheduleAgenda" Width="100%" Height="360px" @bind-SelectedDate="@CurrentDate">

                                        <ScheduleViews>

                                            <ScheduleView Option="View.Agenda"></ScheduleView>

                                        </ScheduleViews>

                                        <ScheduleEventSettings DataSource="@calendarToday"></ScheduleEventSettings>

                                    </SfSchedule>

Error is as follows:

blazor.server.js:21 [2021-10-07T09:13:08.850Z] Error: System.NullReferenceException: Object reference not set to an instance of an object.

   at Syncfusion.Blazor.Schedule.Internal.AgendaEvent`1.OnParametersSetAsync()

   at Microsoft.AspNetCore.Components.ComponentBase.CallStateHasChangedOnAsyncCompletion(Task task)

   at Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync()

[Nevitha Ravi]

Hi Martin, 

Sorry for the inconvenience caused. 

The reported issue is a known breaking issue which will be resolved in our upcoming patch release scheduled on October 12, 2021. Please track the status through the following link. 

https://www.syncfusion.com/feedback/29284/exception-throws-in-agenda-view-when-id-field-is-missed-in-tvalue-model-class 

We suggest to define Id field in TValue model class to overcome the problem as below until then. 

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; }  

} 

Please let us know if you need any further assistance. 

Regards, 

Nevitha  

[Martin]

Thank you for the update

[Nevitha Ravi]

Hi Martin, 

You are most welcome..! We will let you know once the issue has been resolved. Please be patience until then.. 

Regards, 

Nevitha. 

[Nevitha Ravi]

Hi Martin, 

 

Thanks for being patience, 

We are glad to announce that our weekly patch release v19.3.0.45 is rolled out successfully. In this release, the exception throws in Agenda view when TValue has no Id field has been resolved. 

Release Notes: https://blazor.syncfusion.com/documentation/release-notes/19.3.45?type=all#scheduler 

Feedback: https://www.syncfusion.com/feedback/29284/exception-throws-in-agenda-view-when-id-field-is-missed-in-tvalue-model-class 

 

Please upgrade your package and let us know if you would require any further assistance. 

 

Regards, 

Nevitha