Completed
Last Updated: 28 Mar 2025 12:40 by ADMIN
Release 2025 Q2 (May)
Created by: Stefan
Comments: 0
Category: NumericTextBox
Type: Bug Report
1
Selecting values presented by browser autofill throws an error "Cannot read properties of undefined (reading 'toUpperCase') at HTMLInputElement.onKeyDown".
Pending Review
Last Updated: 28 Mar 2025 12:16 by DRASKO
Created by: DRASKO
Comments: 0
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.

Pending Review
Last Updated: 28 Mar 2025 12:11 by DRASKO

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.

 

Pending Review
Last Updated: 28 Mar 2025 12:02 by DRASKO
Created by: DRASKO
Comments: 0
Category: UI for Blazor
Type: Bug Report
1

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.

 

Completed
Last Updated: 28 Mar 2025 10:44 by ADMIN
Release 2025 Q2 (May)
The DropDownList is not opening after pressing the small arrow to the far right of the input box on a mobile device. The DropDownList always opens if you click specifically on the text. However, after selection, if you click the arrow and not the text, the DropDownList will not open, and it breaks and you can no longer open the DropDownList even if you select the text.
Completed
Last Updated: 27 Mar 2025 15:00 by ADMIN
Release 2025 Q2 (May)
Created by: Frank
Comments: 0
Category: Window
Type: Bug Report
3

The Window can display as centered, but after the user moves or resizes it, the app is not able to center the Window programmatically.

The only possible workaround is to toggle the Window's Visible parameter:

https://blazorrepl.telerik.com/weaewmFe32oT4rnQ42

<TelerikWindow @bind-Top="@Top" @bind-Left="@Left" Centered="@Centered" @bind-Visible="@Visible">
    <WindowTitle>
        Title
    </WindowTitle>
    <WindowContent>
        Drag or resize the Window and center it afterwards...
    </WindowContent>
</TelerikWindow>

<TelerikButton OnClick="@( () => Visible = !Visible )">Toggle Window</TelerikButton>
<TelerikButton OnClick="@OnCenterClick">Center</TelerikButton>

@code {
    string Top { get; set; }
    string Left { get; set; }
    bool Centered = false;
    bool Visible { get; set; } = true;

    async Task OnCenterClick()
    {
        Visible = false;
        await Task.Delay(1);

        Top = Left = string.Empty;
        Visible = true;
    }
}

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:
Completed
Last Updated: 26 Mar 2025 07:49 by ADMIN
When only all.css stylesheet is referenced in the masterpage:
  • the wizard doesn't detect the masterpage at all because it searches for swatches theme reference
  • if the user leaves commented swatches theme reference the wizard will modify the all.css reference incorrectly
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

Planned
Last Updated: 21 Mar 2025 09:31 by ADMIN
Scheduled for 2025 Q2 (May)
Created by: Holger
Comments: 0
Category: Scheduler
Type: Bug Report
2

I have created an event series with the following RecurrenceRule:

RecurrenceRule = "FREQ=DAILY;BYDAY=MO,TU,WE,TH,FR"

However, it looks like the collection of days is not taken into consideration and the events are created for every day of the week as if I have only set:

RecurrenceRule = "FREQ=DAILY"

---

ADMIN EDIT

---

A possible workaround for the time being is to use  "FREQ=WEEKLY" and extend the occurrence to the desired days of the week. For example, targeting the "Morning run" appointment: https://blazorrepl.telerik.com/cQuiFGOK01nSotIT28.

Planned
Last Updated: 20 Mar 2025 16:27 by ADMIN
Scheduled for 2025 Q2 (May)

I am testing with a Blazor WASM Standalone app that uses Telerik UI for Blazor. I have a sample page with a button on click of which a predefined dialog (for example, alert) is shown. If you make some change on the page and hot reload is enabled, the button click no longer opens the predefined dialog. The dialog is shown only if I navigate to a different page.

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)
Completed
Last Updated: 18 Mar 2025 13:33 by ADMIN
Release 2025 Q2 (May)
Created by: Denver
Comments: 0
Category: DropDownList
Type: Bug Report
4
On a tablet, when the DropDownList, the MultiSelect or the ComboBox components are clicked, any appearance or disappearance of the tablet keyboard will cause them to display an empty popup.

This only happens if the popup somehow could otherwise overflow the viewport, i.e. only when the DropDownList, the MultiSelect or the ComboBox component are very close to the bottom of the viewport.
Completed
Last Updated: 18 Mar 2025 13:15 by ADMIN
Release 2025 Q2 (May)
I have added a Filterable DropDownList inside the TelerikForm. When I select a value from the popup and tab away the focus class still denotes that the component is focused even though it is not. 
Completed
Last Updated: 18 Mar 2025 11:34 by ADMIN
Release 2025 Q2 (May)
Completed
Last Updated: 18 Mar 2025 11:32 by ADMIN
Release 2025 Q2 (May)
Opening the DDL through the expand button and selecting an item results in focus loss
Unplanned
Last Updated: 17 Mar 2025 15:44 by Rob

Here are some details on the issue I am referring to:

  • The problem only occurs when there is at least one item selected.
  • If the focus is on the chip/selected item, you can properly navigate back to the previous input with Shift+Tab.
  • If the focus is on the input, though, then you cannot use Shift+Tab to navigate back to the previous input/focusable element.

Reproduction: https://blazorrepl.telerik.com/GJkdbBvJ44uuG3fF40.

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