When re-visiting a drop down each selected option is visually indicated, but not to a screen reader user. E.g.:

Figure: Selected options are highlighted but this is not indicated to a screen reader

Version 2.26 throws exception in Application Insights.  Three exceptions ...

• Telerik.Blazor.Components.Common.Filters.FilterMenu.TelerikFilterMenu
• Telerik.Blazor.Components.Popup.TelerikPopup
• Telerik.Blazor.Components.Common.Animation.AnimationGroupBase

System.Threading.Tasks.TaskCanceledException:
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Threading.Tasks.ValueTask`1.get_Result (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Microsoft.JSInterop.JSRuntime+<InvokeAsync>d__15`1.MoveNext (Microsoft.JSInterop, Version=5.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Microsoft.JSInterop.JSRuntimeExtensions+<InvokeVoidAsync>d__0.MoveNext (Microsoft.JSInterop, Version=5.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Telerik.Blazor.Components.Popup.TelerikPopup+<Dispose>d__70.MoveNext (Telerik.Blazor, Version=2.26.0.0, Culture=neutral, PublicKeyToken=20b4b0547069c4f8)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Microsoft.AspNetCore.Components.Rendering.RendererSynchronizationContext.ExecuteSynchronously (Microsoft.AspNetCore.Components, Version=5.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60)
   at System.Threading.ExecutionContext.RunInternal (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Microsoft.AspNetCore.Components.Rendering.RendererSynchronizationContext.ExecuteBackground (Microsoft.AspNetCore.Components, Version=5.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60)

System.Threading.Tasks.TaskCanceledException:
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Threading.Tasks.ValueTask`1.get_Result (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Microsoft.JSInterop.JSRuntime+<InvokeAsync>d__15`1.MoveNext (Microsoft.JSInterop, Version=5.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Microsoft.JSInterop.JSRuntimeExtensions+<InvokeVoidAsync>d__0.MoveNext (Microsoft.JSInterop, Version=5.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Telerik.Blazor.Components.Common.Filters.FilterMenu.TelerikFilterMenu+<DestroyFilterMenu>d__81.MoveNext (Telerik.Blazor, Version=2.26.0.0, Culture=neutral, PublicKeyToken=20b4b0547069c4f8)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Telerik.Blazor.Components.Common.Filters.FilterMenu.TelerikFilterMenu+<Dispose>d__79.MoveNext (Telerik.Blazor, Version=2.26.0.0, Culture=neutral, PublicKeyToken=20b4b0547069c4f8)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Microsoft.AspNetCore.Components.Rendering.RendererSynchronizationContext.ExecuteSynchronously (Microsoft.AspNetCore.Components, Version=5.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60)
   at System.Threading.ExecutionContext.RunInternal (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Microsoft.AspNetCore.Components.Rendering.RendererSynchronizationContext.ExecuteBackground (Microsoft.AspNetCore.Components, Version=5.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60)

System.Threading.Tasks.TaskCanceledException:
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Threading.Tasks.ValueTask`1.get_Result (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Microsoft.JSInterop.JSRuntime+<InvokeAsync>d__15`1.MoveNext (Microsoft.JSInterop, Version=5.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Microsoft.JSInterop.JSRuntimeExtensions+<InvokeVoidAsync>d__0.MoveNext (Microsoft.JSInterop, Version=5.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Telerik.Blazor.Components.Common.Animation.AnimationGroupBase+<Dispose>d__55.MoveNext (Telerik.Blazor, Version=2.26.0.0, Culture=neutral, PublicKeyToken=20b4b0547069c4f8)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Microsoft.AspNetCore.Components.Rendering.RendererSynchronizationContext.ExecuteSynchronously (Microsoft.AspNetCore.Components, Version=5.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60)
   at System.Threading.ExecutionContext.RunInternal (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw (System.Private.CoreLib, Version=5.0.0.0, Culture=neutral, PublicKeyToken=7cec85d7bea7798e)
   at Microsoft.AspNetCore.Components.Rendering.RendererSynchronizationContext.ExecuteBackground (Microsoft.AspNetCore.Components, Version=5.0.0.0, Culture=neutral, PublicKeyToken=adb9793829ddae60)

I would like to be able to override the No Data message in DropDownList component when there are no elements in the Data.

--

ADMIN EDIT

Until this feature is implemented, here is a workaround.

If you already have localization in your project, just set "DropDownList_NoData" key to an empty string in your resources.

If you don't have localization, here are the steps you should do (shortened version of the documentation):

1. Create a class for your localizer: 

public class SampleResxLocalizer : ITelerikStringLocalizer
{
    public string this[string name]
    {
        get
        {
            return GetStringFromResource(name);
        }
    }

    public string GetStringFromResource(string key)
    {
        // this will override only DropDownList_NoData message and it will return other messages as they are
        if (key == nameof(Messages.DropDownList_NoData))
        {
            return string.Empty;
        }

            return Messages.ResourceManager.GetString(key, Messages.Culture); ;
        }
}

2. Override the existing Localizer. This step should be done when configuring your services after calling "AddTelerikBlazor()":

builder.Services.AddSingleton(typeof(ITelerikStringLocalizer), typeof(SampleResxLocalizer));

--

Hi,

The idea is to use the new way to present information to user (without specific label) but using the label of the components.

InTelerikTextBox, no matter, I have a Label property.

Is it possible to have the same properties for the other controls ?

Would be nice to have a MapView for Blazor. Is this in the works?

---

ADMIN EDIT

In the meantime, you can use the Kendo Map widget in a fashion similar to this project.

---

Sometimes it is helpful to allow the user to pick colors for various purposes.

This control can display the RGB value along with allowing them to change the hue/brightness along with the alpha component.

Also the ability to select from a set of predefined colors would be very nice.

---

ADMIN EDIT

Here is a sample project that showcases how you can use Kendo widgets in Blazor and also contains samples of color pickers: https://github.com/telerik/blazor-ui/tree/master/common/kendo-in-blazor

---

We're using a Blazor grid with OData filtering on the server. To construct the url we're using ToODataString on the DataSourceRequest of the grid.

This is working fine as long as we don't add a '&' symbol to the filter. It seems that the ToODataString doesn't replace the & symbol to %26

Here is the reult of our ToODataString, note the red bold &.

$count=true&$filter=(Updated%20ge%202021-08-16T00:00:00.0000000Z%20and%20Updated%20le%202021-09-16T23:59:59.0000000Z%20and%20(contains(Barcode,%27&<-this%20should%20be%20escaped%27)))&$orderby=Cart%20desc&$skip=0&$top=50

Hello.

Is there a Timeline control for Blazor similar to this https://docs.telerik.com/devtools/wpf/controls/radtimeline/visual-structure ? If not, is there a plan for such control?

Thank you

Please make the source code available to people with paid licences.

---

ADMIN EDIT

The source code for UI for Blazor will become available. Click the Follow button on the upper left hand side to get a notification email when that happens, and click the Vote button to add your vote for it if you need it.

The current plan is to make the source code available to commercial license holders in November 2021.

---

Like the one in Kendo https://demos.telerik.com/kendo-ui/breadcrumb/index

With the ability to hook to the URL and URL change like this https://docs.telerik.com/kendo-ui/controls/navigation/breadcrumb/navigation

Steps to reproduce this are pretty simple.  On the Blazor Wizard demo at this link:

https://demos.telerik.com/blazor-ui/wizard/overview?_ga=2.135424305.1441063975.1625423575-1371905116.1594731896&_gac=1.21975282.1624709398.85e5788e7d791cbf2099185965b0351c

- Enter a password on step 1

- Click 'Next' to bring you to the 'Shipping' step

- Set focus to the 'City' input box.  I clicked to the end of the default string that is pre-populated as 'Torino'

- Press the left arrow key.  This sends you back to Step 1 (Registration)

This is a pretty big stumbling block for using the Wizard component, but I may be missing some kind of setting or code that will resolve this.

Please add a "native" Carousel component for the Telerik UI for Blazor solution.

Currently, to implement a Carousel option in a Blazor application using Telerik components, you may need to leverage the Kendo UI widgets based on jQuery that rely on direct DOM manipulation. In a Blazor application, the software engineer should rely on Blazor to manipulate the DOM, instead of direct DOM manipulation required with tools such as jQuery.

Overlapping Telerik products in the same web application, such as Kendo UI and UI for Blazor, can create issues if releases are out of alignment between the solutions, use of CSS files, and other areas of complication.

Please consider adding a Carousel component as it offers a great experience for marketing to customers, business or consumer, on the home page of any website.

When viewing the documentation ( https://docs.telerik.com/blazor-ui ), it would be great to be able to run the code from my browser, just like  https://www.w3schools.com/cs/index.php which allows you to run, play and preview the code from the website. 

The reason this is so important is that people will be able to quickly test and try out variations of the demo code and do a quick test to see if they got it right.  Right now I either have to load the demo solution, make changes, compile the entire solution just to try small changes to the sample code, and then end up corrupting the demo solution.

I think this would be a great feature for all the demos that would support it.  And set you apart from your competition.

I have a form with a range of checkboxes. With 2.25, the code worked. With 2.26, I receive an error initCheckbox was undefined.

<TelerikWindow @bind-Visible="ShowAdd" Modal="true" Class="NewRequest">
    <WindowTitle>Add Applications</WindowTitle>
    <WindowContent>
        <div style="position: relative; width: 90vw; max-width: 400px; display: grid; ">
            <span style="font-size: medium">@thisEmployee.EmpNickName</span>
            <div style="align-content: center; padding: 5px; width: 100%; display:flex; justify-content: center; align-items: center; border: inset">
                <div style="padding: 1px "><label for="ckDev">Dev</label><TelerikCheckBox Id="ckDev" @bind-Value="@thisEmployee.Developer" /></div>
                <div style="padding: 1px "><label for="ckSales">Sales</label><TelerikCheckBox Id="ckSales" @bind-Value="@thisEmployee.Salesman" /></div>
                <div style="padding: 1px "><label for="ckEng">Eng</label><TelerikCheckBox Id="ckEng" @bind-Value="@thisEmployee.Engineer" /></div>
                <div style="padding: 1px "><label for="ckPE">PE</label><TelerikCheckBox Id="ckPE" @bind-Value="@thisEmployee.LeadEng" /></div>
                <div style="padding: 1px "><label for="ckPM">PM</label><TelerikCheckBox Id="ckPM" @bind-Value="@thisEmployee.PM" /></div>
                <div style="padding: 1px "><label for="ckPurch">Purch</label><TelerikCheckBox Id="ckPurch" @bind-Value="@thisEmployee.Purchasing" /></div>
                <div style="padding: 1px "><label for="ckSF">Shop</label><TelerikCheckBox Id="ckSF" @bind-Value="@thisEmployee.ShopFore" /></div>
                <div style="padding: 1px "><label for="ckFS">Super</label><TelerikCheckBox Id="ckFS" @bind-Value="@thisEmployee.FieldSuper" /></div>
            </div><br />
            <div style="font-size:smaller">
                <TelerikGrid Data="@allApps" Height="50vh" FilterMode="@GridFilterMode.FilterMenu" FilterMenuType="@FilterMenuType.CheckBoxList">
                    <GridColumns>
                        <GridColumn Field="MenuCategoryTitle" Title="Category" />
                        <GridColumn Field="MenuCategoryID" Width="0" />
                        <GridColumn Width="3em">
                            <Template>
                                <div style="float:left; cursor:pointer; color: forestgreen; padding-right: 8px" title="Add Category" @onclick="@((args) => AddCategory((context as Index_Menu).MenuCategoryID))"><ic class="fad fa-plus-square" /></div>
                            </Template>
                        </GridColumn>
                        <GridColumn Field="MenuItemID" Width="0" />
                        <GridColumn Field="MenuItemTitle" Title="App" />
                        <GridColumn Width="3em">
                            <Template>
                                @if ((context as Index_Menu).MIAssigned == false)
                                {
                                    <div style="float:left; cursor:pointer; color: forestgreen; padding-right: 8px" title="Add App" @onclick="@((args) => AddItem((context as Index_Menu).MenuItemID))"><ic class="fad fa-plus-square" /></div>
                                }
                                else
                                {
                                    <div style="float:left; cursor:pointer; color: red; padding-right: 8px" title="Delete App" @onclick="@((args) => DeleteApp((context as Index_Menu).MenuItemID))"><ic class="fad fa-trash-alt" /></div>
                                }
                            </Template>
                        </GridColumn>
                    </GridColumns>
                </TelerikGrid>
            </div>
            <div style="align-content:center; padding:5px; width: 100%; display: flex;  justify-content: center;  align-items: center;  ">
                <TelerikButton OnClick="@CancelWindow">CLOSE</TelerikButton>
            </div>
        </div>
    </WindowContent>
</TelerikWindow>