Issues in Scheduler CRUD
Syncfusion.Blazor.Grids already installed & working in my project. In same project want to use Scheduler.
Working on local data. Giving issues when I try to persist in database. checked the helpsite:
@using Syncfusion.Blazor.Schedule
@using Syncfusion.Blazor.Data
have a CustomAdapter, which in turn is using a service.
the main culprit is below part in DataAdaptor Service:
public class AppointmentCustomAdaptor : DataAdaptor
{
private readonly AppointmentService _appointmentService;
private List<AppointmentData> EventData;
public AppointmentCustomAdaptor(AppointmentService appointmentService)
{
_appointmentService = appointmentService;
}
private int _schoolId = 2;
// Fetch all records based on the hardcoded SchoolID
// Corrected ReadAsync method
public async override Task<object> ReadAsync(DataManagerRequest dataManagerRequest, string key = null)
{
// Fetch data from the service
EventData = (await _appointmentService.GetAppointmentsBySchoolIdAsync(_schoolId)).ToList();
// Properly return as an object of DataResult
return Task.FromResult<object>(new DataResult
{
Result = EventData,
Count = EventData.Count()
});
}
runtime values:
?EventData Count = 1 [0]: {EduBuddy.Data.AppointmentData} ?DataResult error CS0119: 'DataResult' is a type, which is not valid in the given context
My Page:
<SfSchedule TValue="AppointmentData" Width="100%" Height="650px" SelectedDate="@CurrentDate" @bind-CurrentView="@CurrentView">
<ScheduleEventSettings TValue="AppointmentData">
<!-- This is directly using typeof for AdaptorInstance as the demo site does -->
<SfDataManager AdaptorInstance="@typeof(AppointmentCustomAdaptor)" Adaptor="Adaptors.CustomAdaptor"></SfDataManager>
</ScheduleEventSettings>
</SfSchedule>
@code {
public View CurrentView { get; set; } = View.Week;
private DateTime CurrentDate { get; set; } = DateTime.Today;
}
Or maybe problem is elsewhere. Even below code gave issues. The page showing unhandled error on loading.
only this page giving issues. rest project working fine.
public async override Task<object> ReadAsync(DataManagerRequest dataManagerRequest, string key = null)
{
// Create simple sample data set for testing
List<AppointmentData> sampleData = new List<AppointmentData>
{
new AppointmentData
{
Id = 1,
Subject = "Test Appointment",
StartTime = DateTime.Now,
EndTime = DateTime.Now.AddHours(1),
Location = "Test Location",
Description = "This is a test appointment.",
IsAllDay = false,
SchoolID=2
}
};
// Return the sample data wrapped in DataResult
// Directly return the sample data as object, without DataResult
return Task.FromResult<object>(sampleData);
}
Hi Vishal Pandey,
We have checked and validated the code snippets you shared. It appears that you're trying to cast a Task<object> to an IEnumerable<object>, which is not valid. The Task.FromResult<object>(sampleData) returns a Task<object>, not an IEnumerable<object>.
You should return the Data directly, not wrapped in a Task. Since your method is asynchronous, you can use await with Task.FromResult to return the data:
[appointmentDataAdaptor.cs]
you can use await Task.FromResult
to return the data:
|
public override async Task<object> ReadAsync(DataManagerRequest dataManagerRequest, string key = null) { List<AppointmentData> sampleData = new List<AppointmentData> { new AppointmentData { Id = 1, Subject = "Test Appointment", StartTime = DateTime.Now, EndTime = DateTime.Now.AddHours(1), Location = "Test Location", Description = "This is a test appointment.", IsAllDay = false, RecordID=2 } }; return await Task.FromResult(sampleData); } |
Regards
Vijay
Attachment: updated_BlazorSchedulerCRUDusingcustomadaptor_76ade66d.zip
- 2 Replies
- 2 Participants
-
VP Vishal Pandey
- Sep 22, 2024 06:07 AM UTC
- Sep 23, 2024 07:33 AM UTC
