Last Updated: 26 Apr 2019 12:19 by ADMIN

When a model property is decorated with data annotation attributes, the RadioButton HtmlHelper does not properly render the data-val and data-val-required attributes on the element.

Expected behavior:  Data attributes should be successfully rendered on the <input> element.

Last Updated: 23 Apr 2019 10:50 by ADMIN
Created by: Joshua
Comments: 0
Category: UI for ASP.NET Core
Type: Bug Report

Trying to attach an event to the Core Sparkline wrapper like this:

                .Data(new double[] {
                16, 17, 18, 19, 20, 21, 21, 22, 23, 22

leads to a compilation error:

Error CS0121 The call is ambiguous between the following methods or properties: 'SparklineBuilder<T>.Events(Action<ChartEventBuilder>)' and 'SparklineBuilder<T>.Events(Action<SparklineEventBuilder>)'

Last Updated: 05 Apr 2019 13:22 by ADMIN
Created by: Mhd.Ahd
Comments: 0
Category: UI for ASP.NET Core
Type: Bug Report


While browsing the new components of UI for Asp Core, I found an Issue in the provided online sample (

After transferring and moving items between the lists of "RIPPLE ON LIST ITEMS", the list display the raw HTML of the items. So, I provided a screen record reproducing the issue (

Last Updated: 18 Mar 2019 15:13 by ADMIN

The Menu TagHelper does not render correct links for its items when the asp-page attribute is used.

With area it does not render a link at all:
<menu-item text="Home" asp-area="Products" asp-controller="Home" asp-action="About"></menu-item>

Without area it renders an incorrect link
<menu-item text="Login" asp-area="Products" asp-page="/Books"></menu-item>

Last Updated: 28 Feb 2019 12:34 by ADMIN
Created by: CLOCA
Comments: 0
Category: UI for ASP.NET Core
Type: Bug Report

When certain options of the editable Window are set through configuration, they are not being serialized correctly:

Events (Open, Close, etc.)

   .Editable(e => e.Window(w => 
        .Events(we => we.Open('onOpen'))))

Last Updated: 05 Dec 2018 16:43 by ADMIN
@model IndexModel
    ViewData["Title"] = "Home page";
<form class="form-horizontal" method="post">
    <h4>Standard textbox:</h4>
    @Html.TextBoxFor(m => m.Candidate.CandidateId)
    <h4>Kendo textbox:</h4>
    @Html.Kendo().TextBoxFor(model => model.Candidate.FirstName)
    <div class="form-group">
            <button type="submit" class="btn btn-default">Submit</button>

Back end:
public class IndexModel : PageModel
    public CandidateViewModel Candidate { get; set; }
    public void OnGet()
    public void OnPost()
        ViewData["firstname"] = $"{Candidate.FirstName}";
        ViewData["candidateid"] = $"{Candidate.CandidateId}";

public class CandidateViewModel
    [Display(Name = "Candidate ID")]
    public int CandidateId { get; set; }
    [Display(Name = "First Name")]
    public string FirstName { get; set; }

Inspect the TextBox and Kendo TextBox helpers in the browser. The latter does not render data-val and data-val-required attributes.