When using the TelerikCheckBoxListFilter component in a FilterMenuTemplate, it does render a checkbox with a blank label, but selecting it does not generate a filter descriptor.

For reference, the built-in CheckBoxList filtering correctly filters null values.

Hello,

The Grid header and data cells become misaligned if the user changes the page zoom level. The right padding of the Grid header area resizes, according to the zoom level, but the scrollbar width remains the same. This triggers the misalignment.

The problem disappears after browser refresh at the current zoom level.

Here is the problem or bug I would like you to look at: If the percent entry component that is in the test application is not in an EditorTemplate, then the OnFocusOut event will fire in Firefox when the Tab or Enter keys is pressed. When the component is within an EditorTemplate, the OnFocusOut event does not fire in Firefox for the Tab/Enter key. This leads me to believe that it is a bug in the Grid and Treelist that is blocking that event from firing in Firefox.

Steps to reproduce:

1. Run the attached project in Firefox.
2. Change one value in percent and press Tab
3. Open the same page in Chrome and repeat

---------------------ADMIN EDIT---------------------

There is one way you can use here to avoid manipulating the onfocusout event to handle percentage input. You can create in your model two properties/values. One value for visualization, with a custom format to represent percentage. Another value to pass along to the business logic, that has the actual fraction. You can see a reference to the described approach in this REPL link.

If you create a second Grid on the page, it will clear the SearchBox input value of the first Grid.

<p><TelerikButton OnClick="@ToggleSecondGrid">Toggle Second Grid</TelerikButton></p>

<TelerikGrid Data="@GridData">
    <GridToolBar>
        <GridSearchBox />
    </GridToolBar>
    <GridColumns>
        <GridColumn Field=@nameof(Product.ProductName) Title="Product Name" />
    </GridColumns>
</TelerikGrid>

@if (ShowSecondGrid)
{
    <TelerikGrid Data="@( new List<Product>() )">
        <GridColumns>
            <GridColumn />
        </GridColumns>
    </TelerikGrid>
}

@code {
    List<Product> GridData { get; set; }

    bool ShowSecondGrid { get; set; }

    async Task ToggleSecondGrid()
    {
        ShowSecondGrid = !ShowSecondGrid;
    }

    protected override void OnInitialized()
    {
        GridData = new List<Product>();

        for (int i = 1; i <= 5; i++)
        {
            GridData.Add(new Product()
            {
                ProductId = i,
                ProductName = "Product " + i.ToString(),
                UnitPrice = (decimal)(i * 3.14),
                UnitsInStock = (short)(i * 1),
                Discontinued = false
            });
        }
    }

    public class Product
    {
        public int ProductId { get; set; }
        public string ProductName { get; set; }
        public decimal? UnitPrice { get; set; }
        public short? UnitsInStock { get; set; }
        public bool Discontinued { get; set; }
    }
}

I have a Grid with Navigable="true" and FilterRow. If I focus a string filter input and press the left/right arrow keys, the focus moves away from the cell. This behavior also occurs when I press up/down arrows in numeric filter inputs.

Reproduction: https://blazorrepl.telerik.com/GcvPkekt36Mxgygv07. 

When you zoom out, the span that displays the Grid pager's content has its style set to display: none, and it does not always reappear when you zoom in after that.

Reproduction

It seems that the issue appeared after upgrading to Telerik 5.0 from 4.6.

When using a Grid with a locked column and column virtualization enabled, focusing cell from that locked column breaks the layout on horizontal scrolling.

The header cell includes the following inner elements when the Grid is sortable:

However, if I disable sorting all those elements are omitted which is not consistent.

Reproduceable example: https://blazorrepl.telerik.com/QSEganvg12BVw2ZU37

Steps to reproduce:

• Add a TelerikGrid to the page - most properties on the grid do not matter for this issue
• Implement the OnStateInit event
• Define the GridAggregates render fragment within the TelerikGrid, but leave it empty - do not put any components inside it
• When the page initializes, note that OnStateInit is never fired

If you remove the GridAggregates emtpy render fragment, or put at least one GridAggregate component in it, OnStateInit fires like expected.

In my project, I've created a component that wraps around the TelerikGrid that I use on all my pages, so that I can have many properties and functions set to reasonable defaults for my use case. My component has an option to conditionally include GridAggregate components within the inner TelerikGrid's GridAggregates render fragment based on separate configuration. If no separate configuration is provided, no GridAggregate components are included, and the GridAggregates render fragment is left blank. Since my component is built in razor markup, there isn't a great option for nulling out that render fragment if it's empty. I had no problems with this exact same code in UI for Blazor version 5.1, and I hope this can be fixed.

I am using InCell Grid editing. I want to prevent an edit cell from closing on certain condition. However, when I cancel the update with args.IsCancelled = true in OnUpdate, the user can still close the edited cell with Enter or Tab. This is inconsistent with inline or popup editing.

===

A possible workaround is to cancel both OnUpdate and the subsequent OnEdit.

https://blazorrepl.telerik.com/QykMHkks10APuDLQ47

@using System.ComponentModel.DataAnnotations

<TelerikGrid Data="@GridData"
             EditMode="@GridEditMode.Incell"
             OnEdit="@OnGridEdit"
             OnUpdate="@OnGridUpdate">
    <GridColumns>
        <GridColumn Field="@nameof(SampleModel.Name)" />
        <GridColumn Field="@nameof(SampleModel.Min)" />
        <GridColumn Field="@nameof(SampleModel.Max)" />
    </GridColumns>
</TelerikGrid>

<TelerikNotification @ref="@NotificationRef"
                     HorizontalPosition="@NotificationHorizontalPosition.Center"
                     VerticalPosition="@NotificationVerticalPosition.Top" />

@code {
    private TelerikNotification? NotificationRef { get; set; }

    private List<SampleModel> GridData { get; set; } = new();

    private bool ShouldCancelOnEdit { get; set; }

    private int LastId { get; set; }

    private void OnGridEdit(GridCommandEventArgs args)
    {
        if (ShouldCancelOnEdit)
        {
            ShouldCancelOnEdit = false;
            args.IsCancelled = true;
        }
    }

    private void OnGridUpdate(GridCommandEventArgs args)
    {
        var updatedItem = (SampleModel)args.Item;

        if (updatedItem.Min > updatedItem.Max)
        {
            NotificationRef?.Show(new NotificationModel()
            {
                ThemeColor = ThemeConstants.Notification.ThemeColor.Error,
                Text = "Min must be smaller than Max"
            });

            args.IsCancelled = true;
            ShouldCancelOnEdit = true;
        }
        else
        {
            var originalItemIndex = GridData.FindIndex(i => i.Id == updatedItem.Id);

            if (originalItemIndex != -1)
            {
                GridData[originalItemIndex] = updatedItem;
            }

            ShouldCancelOnEdit = false;
        }
    }

    protected override void OnInitialized()
    {
        for (int i = 1; i <= 5; i++)
        {
            GridData.Add(new SampleModel()
            {
                Id = ++LastId,
                Name = $"SampleModel {LastId}",
                Min = Random.Shared.Next(1, 10),
                Max = Random.Shared.Next(11, 20)
            });
        }
    }

    public class SampleModel
    {
        public int Id { get; set; }
        [Required]
        public string Name { get; set; } = string.Empty;
        public int Min { get; set; }
        public int Max { get; set; }
    }
}

The issue targets a Grid with cell selection and DragToSelect feature disabled where at least one column has Visible="false". With this configuration, when using Shift + Click to select multiple cells, the result is a mismatch in the cells that should be selected, after the position where the invisible column is placed.

Video reproduction attached. Reproduction code: https://blazorrepl.telerik.com/GyFuQwPf37H8riAM19.

I have a grid that can have a large number of pages and is intended to be able to be viewed on a small width device.

The issue is that upon loading the grid and its data, the pager of the grid isn't changing how it's displayed even though it is supposed to be adaptive.

If the page is manually resized, only then does the pager correctly show as a dropdown.

I've reproduced this in a REPL, though it seems slightly inconsistent as opposed to my main project where it is able to be reproduced every time.

In the attached gif, notice that upon loading the page, the grid shows the pager as a list of numbers as it would if the page was a large width screen, but when resizing the page slightly, it is triggered to show the pages as a dropdown, which I believe is the intended behavior.

Is this issue known and is there a way to trigger the grid to redraw its pager after the data is loaded, or some other form of workaround for this without implementing a custom pager template?

REPL

Repro steps:

1. Go to https://demos.telerik.com/blazor-ui/grid/editing-inline
2. Click Add
3. Enter some data in all editable fields
4. Click Update
5. Go to the last page

Actual: The "Name" field is blank

Expected: All fields have the appropriate data