Unplanned
Last Updated: 14 May 2025 14:00 by Linda
When you hover over a parent item and then move the mouse outside the context menu, the menu stays open. However, if you hover over a child item and move the mouse away, the entire context menu closes. This creates inconsistency.
Unplanned
Last Updated: 14 May 2025 13:52 by Andreas

Hello,

after selecting a block of text in your editor and perform some block operation (for instance - change font size, name, ..) the original selection is lost. Would it be possible to keep that selection please?

Very thanks.

Miroslav

Unplanned
Last Updated: 14 May 2025 06:25 by ADMIN

If I group by a column, and one of the values in the column contains a forward slash ( '/'), then the value will not be grouped, the Grid ignores it.

The issue seems to occur only when LoadGroupsOnDemand is set to true.

===

ADMIN EDIT

===

A possible option for the time being is to disable the LoadGroupsOnDemand feature.

Unplanned
Last Updated: 08 May 2025 08:39 by Kyle

The behavior is reproducible only in the Material and Bootstrap themes - it can be observed in the online demo.

When I scroll to a point where an appointment is not fully visible and click it, the page scrolls up. This does not happen in the other themes.

Reproduction video: https://www.loom.com/share/b8303675096d42ea8582a1638f37571f.

Unplanned
Last Updated: 05 May 2025 10:38 by ADMIN

We upgraded to the latest Telerik Blazor components (8.1.1).
I think there's a bug in the TabStrip when setting the index of the ActiveTabIndex or @bind-ActiveTabIndex.
The page will scroll to the active tab automatically.

Here's a link to the Repl - https://blazorrepl.telerik.com/GfaTEmbR45zQSzEq44

If you remove @bind-ActiveTabIndex="@ActiveTabIndex" from the TelerikTabStrip then the page load normally.

Thanks,

Cesar

Unplanned
Last Updated: 30 Apr 2025 08:44 by HCP4

After filtering a nullable int column, the SelectAll checkbox in the GridCheckboxColumn stops working.

Reproduction example: https://blazorrepl.telerik.com/mTuyHaYM44sLH2yf05

Unplanned
Last Updated: 10 Apr 2025 15:42 by UkrGuru

The issue occurs only if the Signature is initially rendered in a container with display: none style. If I use visibility: hidden, I don't see a problem.

Real use case in which this is a problem: an accordion where the second pane is not opened.

Reproduction code: https://blazorrepl.telerik.com/QfYeuZPv28LlBmBx56.

Steps to reproduce:

  1. Test signinig in the Signature #1 pane - Signature behaves properly.
  2. Open the  Signature #2 pane and test signing - the scale is wrong.
Unplanned
Last Updated: 08 Apr 2025 21:03 by Dustin
Created by: Simon
Comments: 9
Category: PDFViewer
Type: Bug Report
9

Hallo,

i want to Render PDF Files with the PDF Viewer Component.

The Data of the PDF is already fetched from the API when the PDF-Viewer starts Rendering the Loading animation appears and freezes.

After a few Seconds the PDF will be Rendered.

The size of the PDF File is about 5MB.

=====

TELERIK EDIT: Here is a possible workaround - replace the built-in PDF Viewer LoaderContainer with another one with a different animation Type.

<div class="pdfviewer-wrapper">
    <TelerikPdfViewer Height="600px" />

    @* With a Loading... label *@
    <TelerikLoaderContainer Class="pdf-loader-container"
                            OverlayThemeColor="@ThemeConstants.Loader.ThemeColor.Light"
                            Size="@ThemeConstants.Loader.Size.Large"
                            Visible="true" />

    @* Without a Loading... label *@
    @*<TelerikLoaderContainer Class="pdf-loader-container"
                                OverlayThemeColor="@ThemeConstants.Loader.ThemeColor.Light"
                                Visible="true">
            <Template>
                <TelerikLoader Size="@ThemeConstants.Loader.Size.Large"
                               Type="@LoaderType.Pulsing" />
            </Template>
        </TelerikLoaderContainer>*@
</div>

<style>
    .pdfviewer-wrapper {
        position: relative;
    }

    .pdf-loader-container,
    .k-pdf-viewer .k-loader-container {
        visibility: hidden;
    }

    .k-pdf-viewer:has(.k-loader-container:not([style*="none"])) + .pdf-loader-container {
        visibility: visible;
    }
</style>

@code {
    private byte[]? PdfViewerData { get; set; }
}


Unplanned
Last Updated: 08 Apr 2025 10:59 by ADMIN

Hello,

related to my previous bug report.

I have a Dialog that contains a Coordinates textbox which when focused shows a Popup with a Map under that text box.

When the Form model is set in OnInitializedAsync() the Popup is shown under the anchor textbox as expected:

 

But when the Form model is set in OnAfterRender, the Popup is incorrectly positioned to the upper left (0, 0) corner:

 

The position of the popup should behave correctly regardless of where the Form model is set.

 

Unplanned
Last Updated: 03 Apr 2025 13:25 by ADMIN

I am using ComboBox and I want to be able to filter by two model properties. To achieve this I have implemented custom filtering through the OnRead event. Additionally, I am ordering the data to first match the results from the one property, which also is used for the TextField, and after that to match the results from the other property. However, when the results are only from the match of the second property, there is no focus.

Here is a REPL example https://blazorrepl.telerik.com/wyaMQhEN108axXJ036 

Steps to reproduce the issue:

Type "a": "Value test - ano" has the focus (the first option in the list)

Type "an": "Value test - ano" receives the focus (the first option in the list)

Type "ano": "Value test - ano" receives the focus (the first option in the list)

Type "anot": no item has focus despite the results being only "Another Value - val"

Unplanned
Last Updated: 03 Apr 2025 12:47 by ADMIN

Hello,

I have a Dialog that contains a Coordinates textbox which when focused shows a Popup with a Map.

The Map does not show the tiles until I manually zoom or pan.

 

Unplanned
Last Updated: 03 Apr 2025 08:12 by n/a
Created by: n/a
Comments: 0
Category: MultiSelect
Type: Bug Report
1
If you open a MultiSelect with single tag mode, for example, clicking on an item in the popup toggles the selection, but pressing Enter only selects the item and doesn't unselect it.
Unplanned
Last Updated: 01 Apr 2025 09:00 by Alexander
Focus is lost after selecting an item from the dropdown in Firefox, but only when using the mouse. When selecting an item via the keyboard, the focus remains on the input element as expected.
Unplanned
Last Updated: 31 Mar 2025 11:33 by Ricardo

The problem is that the ValueChanged fires without an actual change in the Editor content - just click in it. I reproduce this issue in the following scenario:

  • The value contains a self-closing tag.
  • I click in the Editor the first time. Consecutive clicks in the Editor do not cause ValueChanged to fire.

Reproduction: https://blazorrepl.telerik.com/wfaxnvPv19jUCGhd15.

Unplanned
Last Updated: 31 Mar 2025 11:28 by n/a
When a user quickly enters a filter and immediately tabs to the next element, the popup remains open instead of closing as expected
Unplanned
Last Updated: 25 Mar 2025 09:28 by Sebastian

The problematic behavior can be reproduced in the following case:

  • The DropDownList is at the lower part of the page, so the popup is rendered on top of the main element.
  • The popup height is set to "auto".

In this scenario, when the user filters, the popup position remains unchanged but its height is reduced to fit the filter results. Thus, the popup looks detached from the main element. The behavior is not the same when the popup is rendered below the main element as in this case its top part sticks to the main element.

Reproduction: https://blazorrepl.telerik.com/mpEHGzOt25F1Znxi57.

===

ADMIN EDIT

===

As a workaround for the time being, you can ensure that the popup has a fixed height, so it does not collapse when there are less items to show. You may keep the default popup height or set your desired one through the settings tag. For example: https://blazorrepl.telerik.com/mpYdcfaN38JvIHgP41.
Unplanned
Last Updated: 24 Mar 2025 12:25 by n/a

The DropDownList is supposed to open the popup element when Alt-Down is pressed. This doesn't work if the page itself scrolls. Pressing alt-down scrolls the page instead. This is on macOS Safari and Chrome on a MacBook.

https://demos.telerik.com/blazor-ui/dropdownlist/keyboard-navigation

Unplanned
Last Updated: 19 Mar 2025 15:20 by Adam
Created by: Adam
Comments: 1
Category: Grid
Type: Bug Report
1

The Grid performance worsens progressively with each subsequent edit operation. Please optimize that.

Test page: https://blazorrepl.telerik.com/mJuHFNbb17FpJu9b54

Click on a Price or Quantity cell to start edit mode and tab repetitively to observe the degradation.

Unplanned
Last Updated: 19 Mar 2025 11:09 by ADMIN

Once a user has clicked an appointment to select it, I'd like the ability to clear this selection. For example, if you show one set of appointments, then click a radio button on the page to switch to a different set of appointments, I'd like to clear the selection so that no appointment is selected. The way it works now, the component appears to store the index of the selected appointment and then re-apply that when it's rendered with new appointments.

More context here: https://www.telerik.com/forums/how-to-clear-the-selected-slot-in-the-scheduler

Unplanned
Last Updated: 19 Mar 2025 04:51 by Perry
In our serverside blazor application we use the Telerik's DateTimePicker. When we type values in to the date time picker control, it jumps to the next section or to the end before completing the currect section. We use the format 'yyyy-MM-dd HH:mm'

It does not happen always and I think it is happenning when the internet connection is slow and it shows a Javascript error as well (screenshots below)
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