LearnChineseSimplified/CCharLearn/Pages/FetchData.razor

@page "/fetchdata"
@inject HttpClient Http
@using CCharLearn;

<PageTitle>Weather forecast</PageTitle>

<MudText Typo="Typo.h3" GutterBottom="true">Weather forecast</MudText>
<MudText Class="mb-8">This component demonstrates fetching data from the server.</MudText>
@if (forecasts == null)
{
    <MudProgressCircular Color="Color.Default" Indeterminate="true" />
}
else
{
    <MudTable Items="forecasts" Hover="true" SortLabel="Sort By" Elevation="0">
        <HeaderContent>
            <MudTh><MudTableSortLabel InitialDirection="SortDirection.Ascending" SortBy="new Func<WeatherForecast, object>(x=>x.Date)">Date</MudTableSortLabel></MudTh>
            <MudTh><MudTableSortLabel SortBy="new Func<WeatherForecast, object>(x=>x.TemperatureC)">Temp. (C)</MudTableSortLabel></MudTh>
            <MudTh><MudTableSortLabel SortBy="new Func<WeatherForecast, object>(x=>x.TemperatureF)">Temp. (F)</MudTableSortLabel></MudTh>
            <MudTh><MudTableSortLabel SortBy="new Func<WeatherForecast, object>(x=>x.Summary!)">Summary</MudTableSortLabel></MudTh>
        </HeaderContent>
        <RowTemplate>
            <MudTd DataLabel="Date">@context.Date</MudTd>
            <MudTd DataLabel="Temp. (C)">@context.TemperatureC</MudTd>
            <MudTd DataLabel="Temp. (F)">@context.TemperatureF</MudTd>
            <MudTd DataLabel="Summary">@context.Summary</MudTd>
        </RowTemplate>
        <PagerContent>
            <MudTablePager PageSizeOptions="new int[]{50, 100}" />
        </PagerContent>
    </MudTable>
}


@code {
    private WeatherForecast[]? forecasts;

    protected override async Task OnInitializedAsync()
    {
        forecasts = await Http.GetFromJsonAsync<WeatherForecast[]>("sample-data/weather.json");
    }
    public class WeatherForecast
    {
        public DateTime Date { get; set; }

        public int TemperatureC { get; set; }

        public string? Summary { get; set; }

        public int TemperatureF => 32 + (int)(TemperatureC / 0.5556);
    }
}