Progress® Telerik® UI for Blazor Feedback Portal

Completed

Last Updated: 19 Jun 2023 10:51 by ADMIN

Release 4.4.0 (07/19/2023) (R3 PI1)

Error: Assertion failed - heap is currently locked

Created by: Marc

Comments: 0

Category: Checkbox

Type: Bug Report

Error: Assertion failed - heap is currently locked

I am getting a console error (not a crash) when I have a checkbox like this:

                    <TelerikCheckBox Enabled="@(!CheckBoxValueProperty)"
                                     @bind-Value="@CheckBoxValueProperty">
                    </TelerikCheckBox>

The console error is:

blazor.webassembly.js:1  Uncaught (in promise) Error: Assertion failed - heap is currently locked
    at tt (blazor.webassembly.js:1:45154)
    at Object.beginInvokeDotNetFromJS (blazor.webassembly.js:1:42007)
    at b (blazor.webassembly.js:1:1995)
    at N.invokeMethodAsync (blazor.webassembly.js:1:3845)
    at $W.invokeMethodAsync (telerik-blazor.js:50:1037174)
    at HTMLInputElement.<anonymous> (telerik-blazor.js:50:2198768)
    at se.applyAttribute (blazor.webassembly.js:1:24602)
    at se.applyEdits (blazor.webassembly.js:1:21459)
    at se.updateComponent (blazor.webassembly.js:1:20461)
    at blazor.webassembly.js:1:57076

The checkbox works properly and disables itself when it is checked with a precondition of CheckBoxValueProperty = false.

It would be good though, if this simple method of having the checkbox disable itself with the same property value, would not throw the console error.

Completed

Last Updated: 09 Dec 2020 16:57 by Brian Norris

Release 2.19.0

OnChange fires before value binding

Created by: IT

Comments: 1

Category: Checkbox

Type: Bug Report

OnChange fires before value binding

When I click the checkbox, the OnChange event fires with the new value, but the model field is not updated yet.

<TelerikCheckBox Id="myCheckBox"
                 @bind-Value="@isSelected"
                 OnChange="@ChangeHandler">
</TelerikCheckBox>
<label for="myCheckBox">@(isSelected ? "Selected" : "Not selected")</label>

<div class="text-info">
    @Result
</div>


@code {
    private bool isSelected { get; set; }
    private string Result { get; set; } = String.Empty;

    void ChangeHandler(object value)
    {
        Console.WriteLine($"CHECKBOX: the model is now {isSelected} and the handler received {value}");
        Result = $"OnChange event fired with: {value}";
    }
}

Completed

Last Updated: 03 Dec 2021 10:08 by ADMIN

Release 2.30.0

Checkbox accessibility issue

Created by: Taarti

Comments: 0

Category: Checkbox

Type: Bug Report

Checkbox accessibility issue

We have encountered the following accessibility issue with the Checkbox:

Snippet:

<input type="checkbox" data-id="e218e1d5-71c6-4327-8d3c-88b0c62397a1" class="k-checkbox telerik-blazor" aria-checked="false">

How to fix - Fix ONE the following:

Form element does not have an implicit (wrapped) <label>
Form element does not have an explicit <label>
aria-label attribute does not exist or is empty
aria-labelledby attribute does not exist, references elements that do not exist or references elements that are empty
Element has no title attribute
Element has no placeholder attribute
Element's default semantics were not overridden with role="none" or role="presentation"