I've got a really strange issue happening.

I've got a DropDownList binding to a remote action in one of my controllers.

When rendering my drop down inside of a asynchronous View Component, the control fails to intialize. No javascript errors, nothing.

I know that the binding is working properly, because as soon as I move the control to a view instead of a view component view, the control initializes fine.

I do not have Deferred() on the control because I know that for partial views the scripts need to be inlined. I am also fairly certain it is not an issue with Deferred, because I have other controls within partial views (not view components) within the app, and the controls load fine.

This issue is specific to asynchronous view components. 

This is the control code inside my view component view:

@(Html.Kendo().DropDownList()
    .Name("company-selector")
    .DataTextField("Text")
    .DataValueField("Value")
    .DataSource(source =>
    {
        source.Read(read =>
        {
            read.Action("GetCompanies", "SuperAdmin");
        });
    })
    .HtmlAttributes(new { style = "width: 100%" })
    )

And this is my controller data binding (again which works fine when control is not inside a view. Also hits a break point even with the control in a view component, but the control isn't initialized)

public List<SelectListItem> GetCompanies()
        {
            var companies = _companyRepository.GetCompanies().ToList();
            var companiesSelectList = companies.Select(m => new SelectListItem
            {
                Text = m.Name,
                Value = m.Id.ToString()
            }).ToList();
            return companiesSelectList;
        }

1. Is it possible to use a model for the grid definition and another model for the Add/Edit template?

My example:

     I have a grid that is defined as such:

and the controller is defined as:

The odd thing is, if I update a row when the page loads, it behaves as normal but if I create one and then update another one, It calls the add endpoint first with the original model that was passed the first time to it and then calls the update on the new model that was intended. This obviously results in a duplicate of the first item that was created. I am not sure what I am doing incorrectly here.

Really liking what I see so far.  Ok, so one of the first things ill need to do on this next project is display 3 different formatted lists, where the items are populated from a list of objects.  See attached screenshot.  Basically, I need to load the first list, which is used to make a selection to populate the 2nd and likewise the 3rd.  Actually the 3rd "list" wont be a list, but a detail grid.  Each step should not refresh the whole page, but just update the next portion, eg. partial page updates.  Hope that is clear.

What sets of components could be used in this approach?

Possibly use a PanelBar for the leftmost list, as well as the 2nd?
https://demos.telerik.com/aspnet-core/panelbar/index

However, for the lists themselves, on a previous project that used the UI for Angular library, I think I simply used Bootstrap listgroups
What library component could replicate this?
https://getbootstrap.com/docs/4.0/components/list-group/

The grid should be straighforward, but should it go in a panel

Hello, 
I checked kendo version 2018.02.620 with Core 2.2 and Core 3.
in the first case, the app works successfully
in the second case, the app does not work.
Have you a plan to release a fix in order apps to work with kendo version 2018.02.620 and Core 3?

Thanks in advance for your answer.

No not by me :)

See attached screenshot.  The last few days Ive noticed several posts that are obviously spam promotting various sales gimmicks etc.

I just installed the Telerik UI for ASP.Net Core VS extension and when I start a new project, I get 3 options of the same thing?

how to validate the required field

which i define it the class as Required 

        example 
        [Required]
        public string Title { get; set; }
        [Required]
        public string Description { get; set; }

when i create new Record in grid asp.net Core

then i press Save button directly catch the controller with out any validation 

there is event in the grid 

.Events(e => e.Error("error"))

<script>
    function error(e) {

        console.log(e);
        if (e.errors) {
            var message = "Errors: \n";
            $.each(e.errors, function (key, value) {
                if ('errors' in value) {
                    $.each(value.errors, function () {
                        message += this + "\n";
                    });
                }
            });
            alert(message);
        }
    };

</script>
any help please 

Hi,
is it possible to generate barcodes on the server side in .NET Core? I need generate a barcode image as base64 string.

Thanks,
MT

Hi,

I am trying to add an area of best fit to a standard scatter plot: I have one set of data points, and two equations for lines of best fit. The desired result is a scatter plot of the data points with a shaded area between the two lines of best fit.

I understand that it is currently not possible to mix categorical and XY charts (https://www.telerik.com/forums/using-area-and-scatter-chart-types-in-one-chart). I have tried drawing the desired area on the scatter chart as per https://docs.telerik.com/kendo-ui/controls/charts/how-to/appearance/draw-on-scatter-plots, however this results in the area being superimposed on the chart surface and prevents user interaction with the data points (tool-tips etc.) so is not an acceptable solution.

Is there any other way to achieve the desired result? Please see attached for a simplified example of what I'm trying to achieve.