egwcorelib/EgwCoreLib.BlazorTest/Pages/FetchData.razor.cs

using EgwCoreLib.BlazorTest.Data;
using EgwCoreLib.Razor;

namespace EgwCoreLib.BlazorTest.Pages
{
    public partial class FetchData
    {
        #region Protected Properties

        protected List<int> PageSizeEnab { get; set; } = new List<int>();

        #endregion Protected Properties

        #region Protected Methods

        protected override async Task OnInitializedAsync()
        {
            rawData = await ForecastService.GetForecastAsync(DateTime.Now);
            PageSizeEnab = new List<int>()
            {
                4,8,12,16,20,24,28,32,36,40
            };
            await ReloadAllData();
        }

        protected async Task ReloadAllData()
        {
            await Task.Delay(1);
            totalCount = rawData.Count();
            List<WeatherForecast> currForecast = rawData.ToList();
            // effetuo sort...
            if (!string.IsNullOrEmpty(sortField))
            {
                switch (sortField)
                {
                    case "TempC":
                        if (sortAsc)
                        {
                            currForecast = currForecast.OrderBy(x => x.TemperatureC).ToList();
                        }
                        else
                        {
                            currForecast = currForecast.OrderByDescending(x => x.TemperatureC).ToList();
                        }
                        break;
                    case "TempF":
                        if (sortAsc)
                        {
                            currForecast = currForecast.OrderBy(x => x.TemperatureF).ToList();
                        }
                        else
                        {
                            currForecast = currForecast.OrderByDescending(x => x.TemperatureF).ToList();
                        }
                        break;
                    case "Summary":
                        if (sortAsc)
                        {
                            currForecast = currForecast.OrderBy(x => x.Summary).ToList();
                        }
                        else
                        {
                            currForecast = currForecast.OrderByDescending(x => x.Summary).ToList();
                        }
                        break;
                    default:
                    case "Date":
                        if (sortAsc)
                        {
                            currForecast = currForecast.OrderBy(x => x.Date).ToList();
                        }
                        else
                        {
                            currForecast = currForecast.OrderByDescending(x => x.Date).ToList();
                        }
                        break;
                }
            }

            forecasts = currForecast.Skip(numRecord * (currPage - 1)).Take(numRecord).ToList();
        }

        protected async Task SetCurrPage(int newNum)
        {
            currPage = newNum;
            await ReloadAllData();
        }

        protected async Task SetNumRec(int newNum)
        {
            numRecord = newNum;
            await ReloadAllData();
        }

        protected async Task SortRequested(Sorter.SortCallBack e)
        {
            sortField = e.ParamName;
            sortAsc = e.IsAscending;
            await ReloadAllData();
        }

        #endregion Protected Methods

        #region Private Fields

        private List<WeatherForecast>? forecasts;
        private WeatherForecast[] rawData { get; set; } = new WeatherForecast[1];
        private bool sortAsc = true;
        private string sortField = "";

        #endregion Private Fields

        #region Private Properties

        private int currPage { get; set; } = 1;
        private bool isLoading { get; set; } = false;
        private int numRecord { get; set; } = 8;
        private int totalCount { get; set; } = 0;

        #endregion Private Properties
    }
}