Hi,

Is there a way to open a date picker component targeting the month of a future minimum date ?

For example, I have a minimum date in 3 months. When I open the date picker, the popup is focus on today. When I change the month or click on 'Today', the focus goes on the month of this future date as expected.

I would like to have this behavior when opening the popup.

I tried to use the NavigateTo() with the OnOpen() event but no luck.

REPL example : https://blazorrepl.telerik.com/cJYCGmlk51WrceTj48

Thanks in advance

When I call "Dialogs.AlertAsync", I get null reference error. Any reason why?  The whole page is under TelerikRootComponent.

<TelerikGrid Data="@availableSchedules" class="myTelerik-grid" SelectionMode="GridSelectionMode.Multiple"
             SelectedItems="@selectedSchedules"
             SelectedItemsChanged="@((IEnumerable<BTWInstructorAvailability> newSelected) => OnRowSelect(newSelected))"
             ScrollMode="GridScrollMode.Scrollable" Height="300px">
    <GridColumns>
        <GridCheckboxColumn CheckBoxOnlySelection="true" SelectAll="false" />
        <GridColumn Field="InstructorName" Title="Instructor Name" />
        <GridColumn Field="StartDate" DisplayFormat="{0:MM/dd/yyyy}" Title="Start Date" />
        <GridColumn Field="EndDate" DisplayFormat="{0:MM/dd/yyyy}" Title="End Date" />
        <GridColumn Field="Languages" Title="Languages" />
    </GridColumns>
</TelerikGrid>

protected async Task OnRowSelect(IEnumerable<BTWInstructorAvailability> newSelected)
{
    // Enforce max selection of 3
    if (newSelected.Count() > 3)
    {
        await Dialogs.AlertAsync("Maximum of 3 lessons can be selected.");
        return; 
    }

    selectedSchedules = newSelected;
}

I have a grid that is needs to use EditMode=GridEditMode.Incell.  I have a Telerik CheckBox defined under Template for  a GridColumn.  In order to prevent the need to click twice on the checkbox in the grid (click once to enter edit and click again to actually change the state of the checkbox to checked/unchecked), I have to set the GridColumn to Editable=false and then use OnChange to set the model value:

 <TelerikGrid @ref="@BookingEquipmentGridRef"
              Data="@BookingEquipmentList"
              EditMode="@GridEditMode.Incell"
              OnEdit="@OnEquipmentEdit"
              OnRowClick="@OnEquipmentRowClick"
              OnRowRender="@OnRowRenderHandler"
              OnUpdate="@OnEquipmentUpdate"
              OnStateInit="@((GridStateEventArgs<BookingEquipmentModel> args) => OnEquipmentGridStateInit(args))"
              Height="226px"
              Size="@ThemeConstants.Grid.Size.Small"
              SelectionMode="GridSelectionMode.Single"
              SelectedItems="@SelectedEquipmentList"
              FilterMode="GridFilterMode.FilterMenu"
              Resizable="true"
              Sortable="true"
              Reorderable="true"
              Pageable="true"
              EnableLoaderContainer="false"
              PageSize="25">
   <GridColumns>
                <GridColumn Field=@nameof(BookingEquipmentModel.IsChassis) Title="Chassis" Editable="false" Filterable="false" Width="5rem">
                    <Template>
                        @{
                            var bem = (BookingEquipmentModel)context;
                        }
                        <TelerikCheckBox Value="@bem.IsChassis" ValueExpression="@(() => bem.IsChassis)" ValueChanged="@((bool newValue) => OnChassisChanged(newValue, bem))" />
                    </Template>
                </GridColumn>

   </GridColumns>
</TelerikGrid>

Because I have to set Editable=false the OnEdit event is not fired so I no longer can use args.IsCancelled = true to prevent cell update. In my OnChassisChanged I can not assigned the value to the model but the visual state will no longer match.

    private Task OnChassisChanged(bool newValue, object item)
    {
        if (item == null) return Task.CompletedTask;

        BookingEquipmentModel selectedEquipmentModel = (BookingEquipmentModel)item;

        if (EditableState(SelectedBooking, selectedEquipmentModel) == BookingEquipmentState.EditableStatus.No) return Task.CompletedTask;

        selectedEquipmentModel.IsChassis = newValue;
        selectedEquipmentModel.IsEdit = true;
        DataState.State = DataState.States.UnSaved;

        return Task.CompletedTask;
    }

My users were complaining about having to click twice on a checkbox to set it's new state (checked or unchecked) ... and I agree with their issue, but I can't seem to find a solution (and keep using the TelerikCheckBox) ... any suggestions?

I seem to recall reading  another thread from some other user having similar problem, but seem unable to locate it again.

According to the following link, the Conversational UI component is complete and was released in Aug '25: conversational ui (chat)

However, I don’t see it referenced in the August release notes, documentation, or any related demos. Please, let me know if this component is available and I’ve just overlooked where to find it.

After upgrading our project from Telerik UI for Blazor v9 to v10, some of our pages started throwing the following error:

Unhandled exception rendering component: A Telerik component in the requested view requires a TelerikRootComponent in MainLayout or a parent component.
Read more at: https://docs.telerik.com/blazor-ui/knowledge-base/common-component-requires-telerikrootcomponent

This is unexpected because:

* All pages in our application use the same MainLayout.

* The MainLayout.razor already contains a <TelerikRootComponent> at the top level.

* Nothing else was changed in the project except the Telerik package upgrade (no modifications in layouts or routing).

The error appears only on some pages, while other pages using the exact same layout work fine.

Questions / Issues:

1) Is this a breaking change or regression introduced in v10?

2) Are there any known scenarios where a Telerik component would fail to detect the existing TelerikRootComponent in the MainLayout?

3) Could there be an internal change in v10 causing certain components (e.g. Grid, Window, DropDowns, etc.) to require a different layout inheritance?

Environment:

* Blazor Server (.NET 9)

* Telerik UI for Blazor v10.x (upgraded from v9.x)

* MainLayout.razor includes <TelerikRootComponent> wrapping the layout body.

Expected behavior:

All components should work correctly as they did in v9, since the TelerikRootComponent is already present in the main layout.

Could you please advise if this is a bug or if there is an additional migration step required when upgrading from v9 to v10?

Thank you.

I have a chart that shows different data but for same group data. I re-use the color between the area and column series since thay are about the same source data group. This makes my legend report each item tweice, which I do not want.

How can I disable legend item visibility for one series, but keep visibilitie for other series?

TIA - Hans