If I place a breakpoint in the OnUpdate handler (async) in a grid, spend about 20 seconds inspecting values (no code changes, just looking at values) and then "continue" I get the following:

The grid is now completely unresponsive ... it doesn't continue execution and I have to basically stop execution from VS 2026.  Having to return a test session every time I debug is INCREDIBLY time consuming ... there must be a better way to debug?

 

Hy,

I have an issue with the validation state of a FormItem that uses a custom Template.

I have created the following TelerikForm:

MyForm.razor

DepartmentSelect.razor

LineInefficientyRegistryDto.cs

According with the link Blazor Form Form Items Template - Telerik UI for Blazor, I expect to obtain the following result when the field is not valid after the form submit:

But I have this:

As you can see, the DropDownList is not being highlighted in red. 

Does anyone know why this happens and how to resolve the issue?

Regards,

Marco

 

I want to use the new DropDownTree component to present a hierarchy of Menus > Tabs > Sections to allow a user to select a preferred default item on initial rendering of the main UI.

I would like to present everything fully expanded and prevent user from collapsing any node.

I furthermore would like to allow the user to only select a "leaf" item - that is, a node with no children.

How can I achieve this?

I am struggling to get TelerikPdfViewer (version 11.1.1) to render any PDF. The PDF's in question have been validated correct.

<TelerikPdfViewer @ref="@PdfViewerRef" Data="@PdfData" OnError="@OnPdfError" />

The PDF viewer frame is displayed correctly, but no PDF is rendered. Even if I use the toolbar to "open" a PDF, that "opened" PDF does not render. The OnPdfError callback does get called.

protected async Task OnPdfError(PdfViewerErrorEventArgs args) {

}

However args.Message is always null.

Whatever AI and I have tried over several hours has made no difference, and  hopefully someone can suggest what might be stopping it from performing the rendering.

The subject says it...

Hi,

Can I somehow disable the table-resizing functionality in the Editor?
See attached image...

I do not want the resize handles that appears on all table-corners to be inserted at all in the editor html!

Have I missed some simple property or does this have to do with ProseMirror in some way?

Regards
Andreas

I have a spreadsheet component with some other text boxes and such above it and the user is most likely to start by entering data in the stuff above before entering spreadsheet data but what happens is that when the screen loads the user can start typing into the boxes above and as they are typing the spreadsheet will complete its loading (since that take a little longer) and steal the focus and then all of a sudden the user is now unexpectedly typing in the spreadsheet. The AI tools have exhausted all options to combat this and have told me to just live with it but that's not ideal. Is there a workaround?

I'm using the built in form in my TelerikGrid with the EditMode="GridEditMode.Popup".  I have not customized it at all.  It works great.  However, the Evinced tool was run against it for accessibility and the field is missing an accessible name.  Is there a way to add something to the gridcolumn to give it that info. in the popup form?  Or do I have to create a custom edit form for my 1 column/field to be edited?

Here's my grid in .NET10.

<TelerikGrid Data="@fictitiousNames"
             Width="800px"
             Class="z-index-1"
             Sortable="true"
             EditMode="GridEditMode.Popup"
             OnUpdate="@UpdateFictitiousName"
             OnCreate="@AddFictitiousName"
             OnEdit="@OnFictitiousNameEdit"
             OnDelete="@DeleteFictitiousName">
    <GridToolBarTemplate>
        <GridCommandButton Command="Add"
                           Icon="@SvgIcon.Plus"
                           Class="k-button-sm"
                           OnClick="@(_ => { FictitiousNameTitle = "New Fictitious Name"; })">Add Fictitious Name</GridCommandButton>
    </GridToolBarTemplate>
    <GridSettings>
        <GridPopupEditSettings Width="400px"
                               Height="400px"
                               Title="@FictitiousNameTitle">
        </GridPopupEditSettings>
        <GridPopupEditFormSettings>
            <ButtonsTemplate>
                @{
                    <GridCommandButton Command="Save" Icon="@SvgIcon.Save" class="k-button-sm k-button-solid-primary">
                        @if (context.IsNew)
                        {
                            <span>Save</span>
                        }
                        else
                        {
                            <span>Update</span>
                        }
                    </GridCommandButton>
                    <GridCommandButton Command="Cancel" Icon="@SvgIcon.Cancel" class="k-button-sm k-button-solid-primary">
                        <span>Cancel</span>
                    </GridCommandButton>
                }
            </ButtonsTemplate>
        </GridPopupEditFormSettings>
    </GridSettings>
    <GridColumns>
        <GridColumn Field="@(nameof(FictitiousNameDto.FictitiousName))" Title="Name" Width="60px" />
        <GridCommandColumn Width="20px">
            <GridCommandButton Command="Edit" Icon="@SvgIcon.Pencil">Edit</GridCommandButton>
            <GridCommandButton Command="Delete" Icon="@SvgIcon.Trash">Delete</GridCommandButton>
        </GridCommandColumn>
    </GridColumns>
</TelerikGrid>

https://www.telerik.com/support/whats-new/blazor-ui/release-history/telerik-ui-for-blazor-13-0-0-(2026-q1)

Hate to be harsh since you folks are very supportive, but the list above hardly worthy of a new major version jump.  Is this a sign that Telerik is moving away from Microsoft's beloved Blazor technology?  Not enough developers using Blazor?

It's certainly concerning.  I know Blazor has it's ups and downs, but Microsoft have committed to it long term (unlike Silverlight and UWP and other technologies they've quickly abandoned) and a lot of the .NET 10/11 features are aimed at Blazor improvements.

Features that are very frequently being used like DialogFactory remain untouched an visually look like they came from circa 2010 not 2026.  Clicking on a button outside a Grid and the pending cell data is lost ... kinda important to fix?

Can you folks comment on what is going on here as it looks like not much attention/resources are being put into Blazor?

Hey,

I am working on a Telerik for Blazor UI project and I'm really liking alll the Telerik features so far. However, when there are too many data points on my graph, the x axis becomes really hard to read, so I added a feature to scale the number of visible x-axis categories based on the number of intervals.

For this purpose, I was hoping to add a feature so that when one zooms into the graph, more of the x-axis intervals become visible based on how many can comfortably fit on screen. To this end, I need to know how much a user has zoomed in so that I can scale things accordingly. However, from all I can find online, there is no way to query a TelerikChart for how zoomed in you are. I might be missing something, but in case I am not, I think this feature could be very helpful so that one can add events based on the zoom in and have things change accordingly.

Thanks