Declined
Last Updated: 17 Apr 2025 09:54 by ADMIN
Created by: Frank
Comments: 1
Category: UI for Blazor
Type: Bug Report
0

Hello,

I am currently reworking an old webapp with server-side Blazor and Telerik UI for Blazor. I noticed that TelerikDialogs kind of break the rerendering of child components if the TelerikDialog and all of its content are placed inside their own component:

<PageTitle>Home</PageTitle>

<EditWithDialog @ref="EditDialogInside"></EditWithDialog>

Where EditWithDialog is (basically) defined as follows:

<TelerikDialog @ref="Dialog" @bind-Visible="@Visible">
	<DialogTitle>
		Edit ID
	</DialogTitle>
	<DialogContent>
		<div>
			<div>TelerikDialog inside of component</div>
			<TelerikTextBox Value="@AppState.CustomerString" OnChange="@SetID" Width="300px"></TelerikTextBox>
			<TelerikButton OnClick="@GenerateID">Generate ID</TelerikButton>
		</div>
	</DialogContent>
	<DialogButtons>
		<TelerikButton OnClick="@ToggleVisible">Close</TelerikButton>
	</DialogButtons>
</TelerikDialog>

 

However, if the TelerikDialog is placed on a page and its content is placed inside of its own component, everything works as expected:

<PageTitle>Home</PageTitle>
<TelerikDialog @bind-Visible="@Visible">
	<DialogTitle>
		Edit ID
	</DialogTitle>
	<DialogContent>
		<div>
			<div>TelerikDialog outside of component</div>
			<EditWithoutDialog @ref="EditDialogOutside"></EditWithoutDialog>
		</div>
	</DialogContent>
	<DialogButtons>
		<TelerikButton OnClick="@ToggleEditOutside">Close</TelerikButton>
	</DialogButtons>
</TelerikDialog>

EditWithoutDialog.razor:

<TelerikTextBox Value="@AppState.CustomerString" OnChange="@SetID" Width="300px"></TelerikTextBox>
<TelerikButton OnClick="@GenerateID">Generate ID</TelerikButton>

I am using the state-container approach described here, but the problem persists when using two-way binding via parameters.

In this scenario, putting the dialog directly on the page is not a problem, but with larger applications where there's possibly multiple dialogs and a lot more content on one page, this can become very unwieldy and confusing. Considering Blazors emphasis on making components reusable, this also prevents proper use of a customized dialog component that uses the TelerikDialog as a base.

I have attached a small project that implements both versions on a single page for you to test. I have tested using both Edge and Firefox.

Declined
Last Updated: 16 Apr 2025 11:28 by ADMIN

Hi there,

I have a TelerikGrid with a DateTime column. I use a custom FilterEditorFormat which is localizable depending on the user settings, e.g. "dd/MM/yyy HH:mm:ss". Unfortunately, any '/' in the date component is always replaced by the current culture's DateSeparator. Using any other separator works, e.g. '-'. 

Expectation: Use the FilterEditorFormat without modification, unless it's a standard format string like "g" or "D".

I already traced it down to Telerik's FormatHelper class and it seems like a quick fix.

Steps to reproduce:

  • Create a TelerikGrid with a DateTime column and a FilterEditorFormat as shown above.
  • If required, change the DateSeparator to anything else but '/'.
  • Run and open the filter dialog

Please let me know if you need any additional information.

Best regards

Andreas

Declined
Last Updated: 16 Apr 2025 06:50 by Meindert
Created by: Stefan
Comments: 2
Category: PivotGrid
Type: Feature Request
2

hello

please add support for bind pivotgrid to datatable or expando objects (local mode)

Declined
Last Updated: 11 Apr 2025 11:25 by ADMIN
Created by: Ken
Comments: 1
Category: Grid
Type: Feature Request
1

Please consider adding a TooltipTemplate parameter to the GridColumn component to allow developers to define custom tooltips for each cell using the same template logic available in CellTemplate.

Why This Matters

In enterprise applications — especially in ERP dashboards, cutover schedules, and KPI reports — data often needs contextual clarification. While tooltips are supported globally or via title attributes, there’s currently no clean, built-in way to customize tooltips per column using templating logic.


Declined
Last Updated: 11 Apr 2025 08:26 by ADMIN

Please consider adding new grid-level properties to control visual styling and editing behavior more intuitively:

 

  • HeaderThemeColor
  • ShowGridLines
  • EditModeDisplay (e.g., None, ValueOnly, All, Auto)

These options would provide teams with greater flexibility to align grids with branding, accessibility, and user interaction standards.

Why This Is Valuable

Grids are the centerpiece of most enterprise applications — and users rely on visual consistency and responsive interaction. Today’s grids need to:

 

  • Match branding and accessibility guidelines (dark/light, color accessibility).
  • Visually separate data (e.g., grid lines on for financial reports, off for dashboards).
  • Clearly communicate edit state (inline, batch, or value-only editing).

These settings would empower developers to deliver purpose-built grids without deep CSS overrides or workarounds.


Declined
Last Updated: 07 Apr 2025 06:40 by ADMIN

Please consider adding support for an optional header row indicator that can display a conditional icon + themed tooltip, used to show non-field-level validation or status messages — especially during inline or in-cell editing, and ideally in batch edit scenarios.

Why This Is Needed

In enterprise applications — especially those with batch entry workflows, cutover planning, or financial approvals — validation needs often extend beyond just field-level errors. Common use cases include:

  • Rule-level messages (e.g., “Only one Primary Owner allowed per group”).
  • Cross-row or cross-field issues (e.g., overlapping dates, missing dependencies).
  • Batch edit feedback (e.g., conflict indicators before submit).

Currently, there’s no clean way to show column-specific validation or guidance in a visual, inline way that:

  • Doesn’t clutter the cell.
  • Surfaces at the column level (just like a header).
  • Feels native to the grid.
Declined
Last Updated: 04 Apr 2025 11:51 by DRASKO
Created by: DRASKO
Comments: 2
Category: UI for Blazor
Type: Bug Report
1

Hello,

related to my previous bug report.

When Add / Edit is clicked in the Grid, it causes a Dialog to open. 

The dialog has a Form, and if the model for that form is set through OnParametersSet, the method is called in an infinite loop, and the Dialog never gets shown.

Declined
Last Updated: 27 Mar 2025 11:54 by ADMIN
I am trying to make a custom component to put in the Grid's FilterMenuTemplate that stacks the default contents from FilterMenuType.Menu above the default contents of FilterMenuType.CheckBoxList since there isn't a 'both' option in Blazor like there was in the Silverlight library. I am using the TelerikFilter as a placeholder for now to try and get basic logic working, but if there is a simple solution to directly insert the default menu without my component having to generate the list of allowed filter operators for it's own dropdowns, that would also be appreciated. My goal is to make my component look like the two menu types stacked.

While working on how to connect the filters together, I noticed that the clear button can gets the later part of the CompositeFilterDescriptor stuck in the grid.

Reproducible example:  https://blazorrepl.telerik.com/wzuRPRvB00Vlj1Ac28

With the current configuration of the repl, filtering using only the TelerikCheckBoxListFilter and clicking filter will filter the column as expected, and clicking clear will blank out the checklist but won't reset the grid's filtering from those checkboxes until after ticking a checkbox and clicking filter, then unticking all checkboxes and clicking filter again. If the checkbox gets used then the clear button gets clicked, clicking the filter button after using the TelerikFilter without any checkboxes checked will filter based on the checkboxes the grid remembers ANDed with the new values from the TelerikFilter, again until the checkbox gets used and then manually emptied without using the clear button.

If the order of _textFilterValueInternal and _checkFilterValueInternal in the FilterDescriptors list get reversed, then the grid's filter memory issue gets transferred to the TelerikFilter meaning the issue is presumably with the grid itself. Also, if you use one or more values in both filters, then the clear button works as intended if there weren't already filters stuck inside the grid.

The clear button works as expected if filtering with both the filter and the checklist before clearing the filter.

Example images:

Start:

Check some boxes:


Filtered:


Open filter menu and click "Clear":


Re-open the filter menu:


New filter:


Click "Filter":


Re-open filter menu:


Click "Clear" button again:
Declined
Last Updated: 19 Mar 2025 13:14 by ADMIN

In many cases the header text of columns gets truncated to an ellipses if the columns aren't wide enough.  It would be nice if there was a global way to display a tooltip for each column header that is made up of the header text.  I know that I can do this using the column header template, but that will require that I create a template for every column in all of my grids. I'm looking for a way to have it work globally. This could be with a general header template that has context about the header Title, or just a Boolean flag to display column header tooltips.

Thanks,

Mike


Declined
Last Updated: 14 Mar 2025 16:21 by Jonathan
Created by: Michal
Comments: 8
Category: UI for Blazor
Type: Bug Report
5

Hi,

starting with version 6.0, dialogs used together with loading indicator are at wrong z-index order.

- None of hotfixes with "delay" helped.

- users are stucked and cant confirm anything

How to replicate

Click on "Show Confirm with loading indicator". Loading animation should be at BACK of confirm dialog(as at older versions, prior 6.0)

https://blazorrepl.telerik.com/GeOfQMkt56AMkdof43

 

Declined
Last Updated: 07 Mar 2025 06:24 by ADMIN
Hi,

Upgraded to .NET 9 and Telerik UI For Blazor 8.0.0 and the grid header text is no longer centered for the columns that are set to do so.

I ran a backup copy of the same project that was using .NET 8. The columns centered okay. I then upgraded that same project to .NET 9 without making any code changes and the columns no longer centered.

Thanks,
Joe
Declined
Last Updated: 06 Mar 2025 13:04 by ADMIN
Created by: Kevin
Comments: 3
Category: DropDownList
Type: Feature Request
0

Hello,

i am trying to add a Clear Button inside the DropDownList-Component.

I tried to follow the instructions provided here: How do I add a Clear button to a DropDownList? in UI for Blazor | Telerik Forums respectiveley here: Telerik REPL for Blazor - The best place to play, experiment, share & learn using Blazor.

But unfortunateley, the button is never inside the component. It's always next to it or under the component.

In your example provided above, the button is inside the component.

I would love to have any solution for this one. A clear button is needed quite often.

I also have attached our custom component, where we use the Telerik DropDownList Component.

Thank you

 

Declined
Last Updated: 04 Mar 2025 14:24 by ADMIN

Hello,

 after uprading fron 7.1.0 to version 8.0.0

on IOS v 16.2, or any version before 17, telerik ui stopped working with this error after navigating between pages:

Microsoft.JSInterop.JSException: Could not find 'TelerikBlazor.initMediaQuery' ('TelerikBlazor' was undefined).

even, when mediaquery is not present at the 2 pages between navigating occurs.(login->landing page)

what iam tried on NEW clean device(so no caching troubles):
- changing order of scripts in app.razor
- adding defer
- addin autostart=false + DOM event
https://www.telerik.com/blazor-ui/documentation/getting-started/what-you-need#javascript-file


- any kind of browsers(on ios everything is webkit-safari)
- independent test on external emulator ip12 ios 16.2
https://appetize.io/app/standalone_lahzvlutkzrno7sqs36cqlj5wy?device=iphone12&osVersion=16.2

attached examples are for comparing of descriped attemps to get it work - both failed. But on v7.1.0, works ok - both.

Is there any breaking changes, which must be modified to get it working?
Thanks

Declined
Last Updated: 03 Mar 2025 17:28 by Tech
Created by: Tech
Comments: 2
Category: DatePicker
Type: Feature Request
0

In our application "Today" is NEVER a valid selection.  But there is no way to turn it off.

Yes, we realize that we can create our own header template.  But then we have to reproduce the next/previous functionality, for every single instance of the component -- and we have many dozens of them.

 

 

 

Declined
Last Updated: 19 Feb 2025 14:54 by ADMIN
Created by: hizam
Comments: 1
Category: UI for Blazor
Type: Feature Request
0

     Dear all,

 

     Please, Can you send the source code for this template with Arabic language     https://demos.telerik.com/blazor-coffee/

    Please add Arabic translate from right to left automatic when select Arabic language

 

Declined
Last Updated: 18 Feb 2025 08:59 by ADMIN
Created by: Andreas
Comments: 1
Category: Editor
Type: Bug Report
1

When copying from the Editor and pasting in Word (keep source formatting), basic stuff like font and font size are not kept.

The text will always become Times New Roman, and the font sizes are not the same, for example 14pt becomes 13.5pt...

Using IFrame-mode and injecting css to set default fonts since that is not supported in a proper way...

From what I can see you need to intercept the copy-event and fix the html like your competitors do (for example syncfusion)...

 

Declined
Last Updated: 13 Feb 2025 15:28 by ADMIN
Created by: Andrew
Comments: 3
Category: UI for Blazor
Type: Feature Request
0

I've been looking at your Keyboard Navigation page:
https://demos.telerik.com/blazor-ui/grid/keyboard-navigation

If you are navigating in the Grid and arrow over to the "+" sign and press ENTER it expands the Details. Then you can press TAB to access the button within the details. Great. Your demo works fine.

However, on my grid, I have another grid in my Details section. I would like to be able to expand the Details section and then TAB into those details so I can access the link in the header of the grid, and also be able to use arrow keys to navigate around this sub grid. Well, honestly MOSTLY I just wanted to be able to tab to the "View Checkout History" link within the Details grid. See attached screenshot.

However, pressing TAB after expanding the details simply moves the focus to the first button in the next column of that row. It doesn't go into the Details section like your web demo does for a button.

Please expand your Keyboard Navigation capabilities to allow more navigation into the Details section other than just a button like your demo shows. I'll bet a lot of people probably have sub-grids within their details section.

Thanks!

Declined
Last Updated: 27 Jan 2025 12:26 by ADMIN

Cuando agrego GridAggregates el exportador de excel no me permite dejar limpia la fila de Totales (FooterTemplates) para unicamente dejar el Dato me coloca la siguiente estructura: "aggregate_sum: X" y al remover el aggregate_sum de los archivos de recursos me deja el texto ": X" por lo que la cadena sigue sin quedar limpia.

De igual manera en mi grid view tengo la columna de Totales y no la agrega al archivo que se exporta los totales como se ve en la imagen:

Declined
Last Updated: 17 Jan 2025 06:48 by Kostas

When I try to move by drag and drop  an event between resources the resource on the event is not updated.

I used this

 <TelerikScheduler Data="@_trips" Height="500px"
                   @bind-Date="@StartDate"
                   IdField="@(nameof(TripInfo.Id))"
                   StartField="@(nameof(TripInfo.StartDateTime))"
                   EndField="@(nameof(TripInfo.EndDateTime))"
                   TitleField="@(nameof(TripInfo.BusCode))"
                   OnUpdate="@UpdateTrip"
                    OnDelete="@DeleteAppointment"
                   ConfirmDelete="true"
                    AllowDelete="true"
                   AllowUpdate="true"
                   DescriptionField="@(nameof(TripInfo.BusDescription))" @bind-View="@sv" @ref="@_scheduler">

     <SchedulerSettings>

         <SchedulerGroupSettings Resources="@GroupingResources" Orientation="@SchedulerGroupOrientation.Vertical"></SchedulerGroupSettings>
     </SchedulerSettings>
     <SchedulerViews>
         <SchedulerTimelineView StartTime="@DayStart" ColumnWidth="20" SlotDivisions="6" SlotDuration="60" EndTime="@DayEnd" NumberOfDays="1" WorkDayEnd="@WorkDayEnd" WorkDayStart="@WorkDayStart" >
   
                  
             </SchedulerTimelineView>

     </SchedulerViews>
     <SchedulerResources>
         <SchedulerResource Field="@(nameof(TripInfo.BusCode))" Title="Resources" TextField="@(nameof(BaseCodeInfo.Name))" ValueField="@(nameof(BaseCodeInfo.Code))" Data="@_resources"></SchedulerResource>
     </SchedulerResources>
 
        
 </TelerikScheduler>
Declined
Last Updated: 13 Dec 2024 07:38 by ADMIN
Updated Telerik.UI.for.Blazor from 6.2 to 7.0 and noticed that in wasm solutions had been stopped work grouping in TelerikGrid. 
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