bind Scheduler Resource using DataSource controller action NOT working

[Future Link IT]

Scheduler Resource Binding using DataSource not displaying Employee.  Where are the examples?  I need an example that doesn't use BindTo.  Also where are the Asp.Net Core 2 examples?  all are for Asp.net 1

 

@(Html.Kendo().Scheduler<SalonWeb.Models.TimeBlock>()
    .Name("scheduler")
    .Date(DateTime.Now)
    .StartTime(DateTime.Now)
    .Height(600)
    .MajorTick(60)
    .Views(views =>
    {
        views.DayView();
        views.WeekView();
        views.MonthView();
    })
    .Resources(resource =>
    {
        //reading but not displaying
        resource.Add(m => m.Employee)  //employee object
            .Title("Employee") //descriptive title
            .DataTextField("Name") //property in Employee Object
            .DataValueField("Id") //property in Employee Object
            .DataColorField("Color") //property in Employee Object
            .DataSource(ds => ds
                .Read("Read", "Employees") //Read function in Employee controller
            );
    })
    .DataSource(d => d
        .Model(m => {
            m.Id(f => f.Id);
            m.Field(f => f.Title).DefaultValue("No title");
            m.Field(f => f.Employee);
        })
        .Read("Read", "TimeBlocks")
        .Create("Create", "TimeBlocks")
        .Update("Update", "TimeBlocks")
        .Destroy("Delete", "TimeBlocks")
    )
)

TimeBlock controller 

public async Task<IActionResult> Create([DataSourceRequest] DataSourceRequest request, TimeBlock timeBlock)
        {
            if (ModelState.IsValid)
            {
                _context.Add(timeBlock);
                await _context.SaveChangesAsync();
            }
            return Json(await new[] { timeBlock }.ToDataSourceResultAsync(request, ModelState));
        }

Employee Controller

public async Task<IActionResult> Read([DataSourceRequest] DataSourceRequest request)
        {
            return Json(await _context.Employee.ToDataSourceResultAsync(request));
        }

[Neli]

Hello,

I have replied in the support thread regarding the same issue. I will paste my last reply below, as it could be helpful to the other users in the Forum.
I would suggest you to keep the conversation in a single thread. 

The Demo that I have sent you a link is demonstrating the basic usage of Scheduler Resources. The remote data binding of the Resources could not be observed in the Demo, but it is giving an overview of the Resources. For this reason I have prepared the sample project that is attached to my previous reply. Below is the configuration that you will find in Views -> Home -> Index.cshtml

Copy Code

@(Html.Kendo().Scheduler<SchedulerBasicCore.Models.ScheduleViewModel>()
    .Name("scheduler")
    .Date(DateTime.Now)
    .StartTime(new DateTime(2017, 1, 1, 6, 00, 00))
    .Height(600)
    .Width(800)
    .Views(views =>
    {
        views.MonthView();
        views.DayView();
        views.WeekView();
        views.WorkWeekView(workWeekView =>
        {
            workWeekView.Selected(true);
        });
    })
    .Timezone("Etc/UTC")
    .DataSource(d => d
        .Events(e => e.Error("onError"))
        .Model(m =>
        {
            m.Id(f => f.EventId);
            m.Field(f => f.Title).DefaultValue("No title");
            m.RecurrenceId(f => f.RecurrenceId);
        })
        .Read(read => read.Action("Schedules_Read", "Scheduler"))
        .Create(create => create.Action("Schedules_Create", "Scheduler"))
        .Update(update => update.Action("Schedules_Update", "Scheduler"))
        .Destroy(destroy => destroy.Action("Schedules_Destroy", "Scheduler"))
    )
    .Resources(resource =>
    {
        resource.Add(m => m.RoomID)
            .Title("Room")
            .DataSource(ds => ds
                    .Custom()
                    .Transport(transport => transport.Read(read => read.Action("Resources", "Scheduler")))
                    .Schema(schema => schema
                        .Data("Data")
                        .Total("Total")
                        .Errors("Errors")
                        .Model(model =>
                        {
                            model.Id("Value");
                            model.Field("Value", typeof(int));
                            model.Field("Text", typeof(string));
                            model.Field("Color", typeof(string));
                        })
                    )
                )
            .DataTextField("Text")
            .DataValueField("Value")
            .DataColorField("Color");
    })
)

Here is the respective end point for populating the Resources (SchedulerController.cs). 

Copy Code

public JsonResult Resources([DataSourceRequest] DataSourceRequest request)
 {
List<Room> rooms = new List<Room>() {
new Room(){Value = 1, Color = "#1c9ec4", Text = "Room 1"},
new Room(){Value = 2, Color = "#ff7663", Text = "Room 2" },
new Room(){Value = 3, Color = "purple", Text = "Room 3"}
};
return Json(rooms.ToDataSourceResult(request));
}

Note, that the create, update and destroy end points for the Scheduler dataSource are not implemented. 


Regards,
Neli
Progress Telerik

[Evan]

Hi there!

When I implement this example the resources passed through to the CRUD methods are null. I can see the list but its a list of null.

See here for details https://stackoverflow.com/questions/60599258/list-of-attendees-is-returning-list-of-nulls-in-crud-methods-for-telerik-for-mvc

Any ideas on this one would be greatly appreciated.

[Martin]

Hello Evan,

I tested the implementation in the example from my colleague and it works as expected. Could you please modify the attached project to reproduce the issue you are experiencing? I will then happily assist you.

Looking forward to your reply.

Regards,
Martin
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[Tim]

Telerik - Can you provide a tag helper example please?

[Martin]

Hello Tim,

In the process of creating a tag helper example, I discovered that the DataSourceTagHelper is not available for the Scheduler TagHelper resources. I have logged the behavior as a bug and it will be handled with a high priority. Until the fix is available, I am afraid there is no way to set remote resources for the Scheduler TagHelper.

Let me know if you have any questions

Regards,
Martin
Progress Telerik