<TelerikGrid Data=@MyData EditMode="@GridEditMode.Inline" Pageable="true" Height="500px" Navigable="true"
             OnUpdate="@UpdateHandler" OnDelete="@DeleteHandler" OnCreate="@CreateHandler" OnCancel="@CancelHandler">
    <GridToolBar>
        <GridCommandButton Command="Add" Icon="add">Add Employee</GridCommandButton>
    </GridToolBar>
    <GridColumns>
        <GridColumn Field=@nameof(SampleData.ID) Title="ID" Editable="false" />
        <GridColumn Field=@nameof(SampleData.Name) Title="Name" />
        <GridCommandColumn>
            <GridCommandButton Command="Save" Icon="save" ShowInEdit="true">Update</GridCommandButton>
            <GridCommandButton Command="Edit" Icon="edit">Edit</GridCommandButton>
            <GridCommandButton Command="Delete" Icon="delete">Delete</GridCommandButton>
            <GridCommandButton Command="Cancel" Icon="cancel" ShowInEdit="true">Cancel</GridCommandButton>
        </GridCommandColumn>
    </GridColumns>
</TelerikGrid>

@code {
        async Task UpdateHandler(GridCommandEventArgs args)
        {
            SampleData item = (SampleData)args.Item;

            if (item.ID == 0)
            {
                await CreateHandler(args);
            }
            else
            {
                // perform actual data source operations here through your service
                await MyService.Update(item);

                // update the local view-model data with the service data
                await GetGridData();

                Console.WriteLine("Update event is fired.");
            }
        }

        async Task DeleteHandler(GridCommandEventArgs args)
        {
            SampleData item = (SampleData)args.Item;

            // perform actual data source operation here through your service
            await MyService.Delete(item);

            // update the local view-model data with the service data
            await GetGridData();

            Console.WriteLine("Delete event is fired.");
        }

        async Task CreateHandler(GridCommandEventArgs args)
        {
            SampleData item = (SampleData)args.Item;

            // perform actual data source operation here through your service
            await MyService.Create(item);

            // update the local view-model data with the service data
            await GetGridData();

            Console.WriteLine("Create event is fired.");
        }

        async Task CancelHandler(GridCommandEventArgs args)
        {
            SampleData item = (SampleData)args.Item;

            // if necessary, perform actual data source operation here through your service

            Console.WriteLine("Cancel event is fired.");
        }


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

    async Task GetGridData()
    {
        MyData = await MyService.Read();
    }

    protected override async Task OnInitializedAsync()
    {
        await GetGridData();
    }

    // the following static class mimics an actual data service that handles the actual data source
    // replace it with your actual service through the DI, this only mimics how the API can look like and works for this standalone page
    public static class MyService
    {
        private static List<SampleData> _data { get; set; } = new List<SampleData>();

        public static async Task Create(SampleData itemToInsert)
        {
            itemToInsert.ID = _data.Count + 1;
            _data.Insert(0, itemToInsert);
        }

        public static async Task<List<SampleData>> Read()
        {
            if (_data.Count < 1)
            {
                for (int i = 1; i < 50; i++)
                {
                    _data.Add(new SampleData()
                    {
                        ID = i,
                        Name = "Name " + i.ToString()
                    });
                }
            }

            return await Task.FromResult(_data);
        }

        public static async Task Update(SampleData itemToUpdate)
        {
            var index = _data.FindIndex(i => i.ID == itemToUpdate.ID);
            if (index != -1)
            {
                _data[index] = itemToUpdate;
            }
        }

        public static async Task Delete(SampleData itemToDelete)
        {
            _data.Remove(itemToDelete);
        }
    }
}