[Solved] Filter in Popover Doesn't Show Group/Expression Removals

[Johnathan]

When I have a TelerikFilter in a TelerikPopover, removing a group or expression doesn't work. I think the issue is that the filter is not visually updating because when I click the X once nothing happens, but when I click the X again I get the Unhandled Error banner.

I also noticed that if I have another filter using the same variable for Value somewhere else in the DOM (not in a TelerikPopover), then the one in the TelerikPopover works as expected when removing groups and expressions.

<TelerikPopover AnchorSelector="span.filter-popover-target"
                ShowOn="@PopoverShowOn.Click"
                Offset="10" 
                Class="bg-dark-subtle"
                AnimationType="@AnimationType.SlideDown"
                AnimationDuration="500"
                ShowCallout="false"
                Collision="@PopoverCollision.Fit"
                Position="@PopoverPosition.Bottom"
                Width="650px"
                @ref="@FilterPopoverRef">
    <PopoverContent>
        <div p-1>
            <div class="h2">Filter Projects</div>
            <TelerikFilter Value="@ProjectFilter" OnUpdate="@OnFilterUpdate">
                <FilterFields>
                    <FilterField Name="@(nameof(ProjectModel.CustomerContact))"
                                    Type="@(typeof(string))"
                                    Label="Cust Contact"
                                    Operators="@TextFilterOperators" />
                    <FilterField Name="@(nameof(ProjectModel.Description))"
                                    Type="@(typeof(string))"
                                    Label="Description"
                                    Operators="@TextFilterOperators" />
                </FilterFields>
            </TelerikFilter>
        </div>
    </PopoverContent>
</TelerikPopover>

[Dimo]

Hello Johnathan,

Please call the Popover Refresh() method in the Filter OnUpdate event handler.

On a side note, we recently fixed a related problem that doesn't need a Popover to reproduce. The changes will take effect in our imminent release in late March 2026.

Regards,
Dimo
Progress Telerik