table.k-grid-table span.telerik-blazor,
    table.k-grid-table .k-textbox {
        width: 100%;
    }

@using Telerik.Blazor.Components.Grid
@using Telerik.Blazor.Components.TextBox

<TelerikGrid Data=@MyData EditMode="inline" Pageable="true" Height="500px">
    <TelerikGridColumns>
        <TelerikGridColumn Field=@nameof(SampleData.ID) Title="ID" Editable="false" />
        <TelerikGridColumn Field=@nameof(SampleData.Name) Title="Name" Width="70px">
            <EditorTemplate>
                @{
                    CurrentlyEditedEmployee = context as SampleData;
                    <TelerikTextBox @bind-Value="CurrentlyEditedEmployee.Name" Width="100%"></TelerikTextBox>
                }
            </EditorTemplate>
        </TelerikGridColumn>
        <TelerikGridColumn Field=@nameof(SampleData.Role) Title="Position" Width="500px">
            <EditorTemplate>
                @{
                    CurrentlyEditedEmployee = context as SampleData;
                    <TelerikTextBox @bind-Value="CurrentlyEditedEmployee.Role" Width="100%"></TelerikTextBox>
                }
            </EditorTemplate>
        </TelerikGridColumn>
        <TelerikGridCommandColumn>
            <TelerikGridCommandButton Command="Save" Icon="save" ShowInEdit="true">Update</TelerikGridCommandButton>
            <TelerikGridCommandButton Command="Edit" Icon="edit">Edit</TelerikGridCommandButton>
        </TelerikGridCommandColumn>
    </TelerikGridColumns>
    <TelerikGridEvents>
        <EventsManager OnUpdate="@UpdateHandler"></EventsManager>
    </TelerikGridEvents>
</TelerikGrid>

@code {
    public SampleData CurrentlyEditedEmployee { get; set; }

    public void UpdateHandler(GridCommandEventArgs args)
    {
        SampleData item = (SampleData)args.Item;

        var matchingItem = MyData.FirstOrDefault(c => c.ID == item.ID);

        if (matchingItem != null)
        {
            matchingItem.Name = item.Name;
            matchingItem.Role = item.Role;
        }
    }

    protected override void OnInitialized()
    {
        MyData = new List<SampleData>();

        for (int i = 0; i < 50; i++)
        {
            MyData.Add(new SampleData()
            {
                ID = i,
                Name = "name " + i,
                Role = Roles[i % Roles.Count]
            });
        }
    }

    //in a real case, keep the models in dedicated locations, this is just an easy to copy and see example
    public class SampleData
    {
        public int ID { get; set; }
        public string Name { get; set; }
        public string Role { get; set; }
    }

    public List<SampleData> MyData { get; set; }

    public static List<string> Roles = new List<string> { "Manager", "Employee", "Contractor" };
}