romrepomgr/RomRepoMgr.Blazor/Components/Pages/Weather.razor

@page "/weather"
@attribute [StreamRendering]

<PageTitle>Weather</PageTitle>

<h1>Weather</h1>

<p>This component demonstrates showing data.</p>

<!-- This page is rendered in SSR mode, so the FluentDataGrid component does not offer any interactivity (like sorting). -->
<FluentDataGrid GridTemplateColumns="1fr 1fr 1fr 2fr" Id="weathergrid" Items="@forecasts" Loading="@(forecasts == null)" Style="height:204px;" TGridItem="WeatherForecast">
    <PropertyColumn Align="Align.Start" Property="@(c => c!.Date)" Title="Date"/>
    <PropertyColumn Align="Align.Center" Property="@(c => c!.TemperatureC)" Title="Temp. (C)"/>
    <PropertyColumn Align="Align.Center" Property="@(c => c!.TemperatureF)" Title="Temp. (F)"/>
    <PropertyColumn Align="Align.End" Property="@(c => c!.Summary)" Title="Summary"/>
</FluentDataGrid>

@code {
    private IQueryable<WeatherForecast>? forecasts;

    protected override async Task OnInitializedAsync()
    {
        // Simulate asynchronous loading to demonstrate streaming rendering
        await Task.Delay(500);

        var startDate = DateOnly.FromDateTime(DateTime.Now);

        var summaries = new[]
        {
            "Freezing", "Bracing", "Chilly", "Cool", "Mild", "Warm", "Balmy", "Hot", "Sweltering", "Scorching"
        };

        forecasts = Enumerable.Range(1, 5)
                              .Select(index => new WeatherForecast
                               {
                                   Date         = startDate.AddDays(index),
                                   TemperatureC = Random.Shared.Next(-20, 55),
                                   Summary      = summaries[Random.Shared.Next(summaries.Length)]
                               })
                              .AsQueryable();
    }

    private class WeatherForecast
    {
        public DateOnly Date         { get; set; }
        public int      TemperatureC { get; set; }
        public string?  Summary      { get; set; }
        public int      TemperatureF => 32 + (int)(TemperatureC / 0.5556);
    }

}