@if (IsVisible)
{
    <TelerikButton OnClick="@( _ => IsVisible = false )">hide without error</TelerikButton>
    <span>Select an item to hide with error</span>
    <Telerik.Blazor.Components.TelerikGrid Data="Items"
                                           SelectionMode="Telerik.Blazor.GridSelectionMode.Single"
                                           SelectedItemsChanged="OnItemsChanged"
                                           ScrollMode="Telerik.Blazor.GridScrollMode.Scrollable"
                                           TItem="MyModel">
        <GridColumns>
            <Telerik.Blazor.Components.GridColumn Field="Name"></Telerik.Blazor.Components.GridColumn>
        </GridColumns>
    </Telerik.Blazor.Components.TelerikGrid>
}
<TelerikButton OnClick="@( _ => IsVisible = true)">show</TelerikButton>



@code  {

    public MyModel ModelData { get; set; }
    public List<MyModel> Items { get; set; }

    protected override void OnInitialized()
    {
        ModelData = new MyModel();
        Items = new List<MyModel>();
        for (var i = 0; i < 1000; i++)
        {
            Items.Add(new MyModel()
            {
                Name = "Name " + i
            });
        }
    }

    public bool IsVisible { get; set; } = true;

    public void OnItemsChanged(IEnumerable<MyModel> items)
    {
        IsVisible = false;
    }

    public void ShowGrid()
    {
        IsVisible = true;
    }

    public class MyModel
    {
        public string Name { get; set; }

    }
}