This feature request is to provide an option to configure the displayed format of the editor for the GridColumn. It is essential for the numeric and date editing. An alternative would be to follow the DisplayFormat parameter and reuse it in the DatePickers and NumericTextBox. However, we need to gather feedback for the required functionality from our customers.

Scenario

Rendering the grid column like so:

<GridColumn Visible="true" Field="ScalePercent" Title="Scale Percent" DisplayFormat="{0:P5}" VisibleInColumnChooser="false" />

The data in the grid column will show the 5 decimal precision. However, when we go in edit mode the value in the NumericTextBox is restricted to two decimal places.

Workaround

1. Usage of templates

2. Generic change of globalization setting for the NumericTextBox

`culture.NumberFormat.NumberDecimalDigits`

Allow the Grid to support Enums which are mapped to use datatypes different from int. Currently, if I try to use the following Enum, an InvlidCastException is generated:

public enum ShortEnum : short
{
    Value1,
    Value2,
    Value3
}

For example, I'd like something like this:
Field Name: record.TotalSales -> Auto-generated column title: "Total Sales" with inserted space

ADMIN EDIT: See also the idea below about "AutoGeneratedTitles" Func<string, string> property where the user could perform whatever processing they liked upon the default value. Please leave your comment on what approach you would prefer to be exposed.

Please add a feature to export the grid to Microsoft Word file

---

ADMIN EDIT:

I am attaching a sample to this post that you can use to generate the docx file through the Telerik Document Processing libraries by looping over the data.

You can extend it further (add more fields, refactor so it is more reusable, extract to service,...) and if you would like to export the current grid data, see about implementing the data operations manually through the OnRead event - you can cache the DataSourceRequest object and then run a .ToDataSourceResult() query on the data to get what the grid displays on its current page. An example of a similar approach is available here for a customized excel export.

You can also read more about working with tables in a Word document here to apply more styling options as needed.

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Hi, please expose the debounce delay as a property of TelerikGrid so we can set how soon virtualized columns are loaded after the user scrolls.

**Admin Edit**

This feature request requires research, and if such DebounceDelay parameter can work with good quality in all cases - it will be implemented. Additionally, we will revise the feature together with loading next set of columns if it will be applicable.

**Admin Edit**

At the moment, the CollapsedGroups  collection in the grid state is the indexes of the root-level groups that you can collapse. I want to also be able to control the expanded state of nested groups.

ADMIN EDIT:

Ideas I can see are the following, do add your vote and comments on how you expect that to be exposed:

• a form of Id/field in the group descriptor that controls this. Caveat - groups don't generally have such an id and the descriptor does not control the UI, it controls the data.
• an event that provides the level, field name and group value that lets me choose this for every group as it renders. Caveat - might not plug in the state, but if you have a certain business logic for that you can just keep it in that event always, regardless of the grid state, or keep additional information in an application state.
• the current indexes could become recursive (see the image attached below). Caveat: you can't be sure that the next time data loads the data and so the groups will be the same when loading state

When I have a grid with Reordable=true and a ComboBox in the HeaderTemplate, I cannot click in the combo box because the reordable functionality prevents it.

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ADMIN EDIT

This could be exposed through a data- attribute that you could add to your DOM elements so that the grid can know to skip them, for example:

<TelerikGrid Data="@MyData" Height="300px" Pageable="true" Sortable="true" FilterMode="@GridFilterMode.FilterMenu" Reorderable="true">
    <GridColumns>
        <GridColumn Field="@(nameof(SampleData.ID))" Title="This title will not be rendered">
            <HeaderTemplate>
                Continent <br />
                <div style="text-align:center">Id</div>
                <div @onclick:stopPropagation="true" data-draggable="false">
                    <TelerikComboBox Data="@Continents" Filterable="true" class="headerCombo"
                                     @bind-Value="@SelectedContinentId"
                                     TextField="@nameof(Continent.Name)" ValueField="@nameof(Continent.Id)" Id="MyId">
                    </TelerikComboBox>
                </div>
            </HeaderTemplate>
        </GridColumn>
        <GridColumn Field=@nameof(SampleData.Name) Title="First Name" />
    </GridColumns>
</TelerikGrid>

@code {
    /* Grid */
    string result { get; set; }
    void DoSomething()
    {
        result = $"button in header template clicked on {DateTime.Now}, something happened";
    }

    public class SampleData
    {
        public int ID { get; set; }
        public string Name { get; set; }
        public DateTime HireDate { get; set; }
    }

    public IEnumerable<SampleData> MyData = Enumerable.Range(1, 50).Select(x => new SampleData
    {
        ID = x,
        Name = "name " + x,
        HireDate = DateTime.Now.AddDays(-x)
    });

    /* ComboBox */

    public class Continent
    {
        public int Id { get; set; }
        public string Name { get; set; }
    }
    IEnumerable<Continent> Continents = new List<Continent>() { new Continent { Id = 1, Name = "Africa" }, new Continent { Id = 2, Name = "Asia" }, new Continent { Id = 3, Name = "South America" } };
    public int SelectedContinentId { get; set; } = 1;

}

---

We often have grid data with a widely varying quantity of cell content from row to row. We usually present this with constant row height initially to have as much row overview as possible at a glance.

Grabbing the row divider line and individually make it larger or even double click on it to fit the size would be very useful for users.

When you set widths to some columns in the grid, the rest of the columns stretch to accommodate the rest of the width. Thus, the row drag column can stretch and become unexpectedly wide. A screenshot of the problem is attached.

Perhaps the GridRowDraggableSettings could have a parameter for the width of the draggable column.

<AdminEdit>

As a workaround you can use some CSS to set a width for the Drag column:

<style>
    .custom-row-draggable-col-width.k-grid .k-drag-col {
        width: 100px;
    }
</style>

<TelerikGrid Data="@MyData" Height="400px"
             Class="custom-row-draggable-col-width"
             Pageable="true"
             Resizable="true"
             Reorderable="true"
             RowDraggable="true"
             OnRowDrop="@((GridRowDropEventArgs<SampleData> args) => OnRowDropHandler(args))">
    <GridSettings>
        <GridRowDraggableSettings DragClueField="@nameof(SampleData.Name)"></GridRowDraggableSettings>
    </GridSettings>
    <GridColumns>
        <GridColumn Field="@(nameof(SampleData.Id))" Width="120px" />
        <GridColumn Field="@(nameof(SampleData.Name))" Title="Employee Name" Groupable="false" />
        <GridColumn Field="@(nameof(SampleData.Team))" Title="Team" />
        <GridColumn Field="@(nameof(SampleData.HireDate))" Title="Hire Date" />
    </GridColumns>
</TelerikGrid>

@code {
    private void OnRowDropHandler(GridRowDropEventArgs<SampleData> args)
    {
        //The data manipulations in this example are to showcase a basic scenario.
        //In your application you should implement them as per the needs of the project.

        MyData.Remove(args.Item);

        var destinationItemIndex = MyData.IndexOf(args.DestinationItem);

        if (args.DropPosition == GridRowDropPosition.After)
        {
            destinationItemIndex++;
        }

        MyData.Insert(destinationItemIndex, args.Item);
    }

    public List<SampleData> MyData = Enumerable.Range(1, 30).Select(x => new SampleData
    {
        Id = x,
        Name = "name " + x,
        Team = "team " + x % 5,
        HireDate = DateTime.Now.AddDays(-x).Date
    }).ToList();

    public class SampleData
    {
        public int Id { get; set; }
        public string Name { get; set; }
        public string Team { get; set; }
        public DateTime HireDate { get; set; }
    }
}

</AdminEdit>

I would like the grid and treelist to honor the DisplayFormatAttribute.NullDisplayText Property so I don't have to use cell templates to change what null values render.

FYI... Here's a REPL of it not respecting it

I want to compare special characters (such as umlauts) to other user input.