Scroll hundreds of thousands of items smoothly. VirtualList draws only the rows in view.
Why it helps
- Smooth with huge lists
- Only visible rows
- Simple
Where it fits
- Logs
- Catalogs
- Selections
Example
<VirtualList TItem="string" Label="Log lines" Items="_lines" @bind-SelectedItem="_selected" Height="14rem" ItemHeight="34" />
<p>Selected: @(_selected ?? "none")</p>
<VirtualList TItem="Person" Label="People with a template" Items="_people" Height="12rem" ItemHeight="44" Selectable="false">
<ItemTemplate Context="person">
<strong>@person.Name</strong> <span>@person.Department</span>
</ItemTemplate>
</VirtualList>
@code {
private readonly List<string> _lines = Enumerable.Range(1, 200000).Select(n => $"Line {n:N0}: request processed").ToList();
private readonly List<Person> _people = Enumerable.Range(0, 5000).Select(n => SampleData.People[n % SampleData.People.Count] with { Name = $"{SampleData.People[n % SampleData.People.Count].Name} {n + 1}" }).ToList();
private string? _selected;
}A short fragment. Add @using RayCraft.Blazor.Components to your page and use an interactive render mode.
Included in RayCraft Free. Working examples are in the GitHub repository (MIT); it holds example and demo code, not the library code.