XiangTan_JiaoJie_Bak/DM_Weight/ViewModels/WSDRecordWindowViewModel.cs

using DM_Weight.Models;
using DM_Weight.util;
using log4net;
using log4net.Repository.Hierarchy;
using Prism.Commands;
using Prism.Mvvm;
using Prism.Regions;
using System;
using System.Collections.Generic;
using System.Configuration;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace DM_Weight.ViewModels
{
    public class WSDRecordWindowViewModel : BindableBase, INavigationAware, IRegionMemberLifetime
    {
        private readonly ILog logger = LogManager.GetLogger(typeof(WSDRecordWindowViewModel));
        private int _pageNum = 1;
        public int PageNum
        {
            get => _pageNum;
            set
            {
                SetProperty(ref _pageNum, value);
                RequestData();
            }
        }

        private int _pageCount = 1;
        public int PageCount
        {
            get => _pageCount;
            set
            {
                SetProperty(ref _pageCount, value);
            }
        }

        private int _pageSize = 8;
        public int PageSize
        {
            get => _pageSize;
            set
            {
                SetProperty(ref _pageSize, value);
            }
        }

        private int _totalCount = 0;
        public int TotalCount
        {
            get => _totalCount;
            set
            {
                SetProperty(ref _totalCount, value);
            }
        }
        private DateTime? _startDate = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day);

        public DateTime? StartDate
        {
            get => _startDate;
            set
            {
                if (value != null)
                {
                    SetProperty(ref _startDate, new DateTime(value?.Year ?? 0, value?.Month ?? 0, value?.Day ?? 0));
                }
                else
                {
                    SetProperty(ref _startDate, value);
                }
                RequestData();
            }
        }

        private DateTime? _endDate = new DateTime(DateTime.Now.Year, DateTime.Now.Month, DateTime.Now.Day, 23, 59, 59);

        public DateTime? EndDate
        {
            get => _endDate;
            set
            {
                if (value != null)
                {
                    TimeSpan ershisi = new TimeSpan(23, 59, 59);
                    SetProperty(ref _endDate, new DateTime(value?.Year ?? 0, value?.Month ?? 0, value?.Day ?? 0, 23, 59, 59));
                }
                else
                {
                    SetProperty(ref _endDate, value);
                }

                RequestData();
            }
        }
        private List<TemperatureHumidityInfo>? _temperatureHumidityInfos;

        public List<TemperatureHumidityInfo>? TemperatureHumidityInfos
        {
            get { return _temperatureHumidityInfos; }
            set { SetProperty(ref _temperatureHumidityInfos, value); }
        }
        public DelegateCommand Query
        {
            get => new DelegateCommand(() =>
            {
                RequestData();
            });
        }

        public bool KeepAlive => false;

        void RequestData()
        {
            int totalCount = 0;
            string machineId = ConfigurationManager.AppSettings["machineId"] ?? "DM5";
            TemperatureHumidityInfos = SqlSugarHelper.Db.Queryable<TemperatureHumidityInfo>()
                .Where(mr => mr.GroupNo == machineId)
                .WhereIF(StartDate != null, (mr) => mr.AddTime > StartDate)
                .WhereIF(EndDate != null, (mr) => mr.AddTime < EndDate).OrderByDescending(mr => mr.AddTime)
                .ToPageList(PageNum, PageSize, ref totalCount);
            //.ToList();
            TotalCount = totalCount;
        }

        public void OnNavigatedTo(NavigationContext navigationContext)
        {
            logger.Info("进入OnNavigatedTo");
            RequestData();
            logger.Info("结束");
        }

        public bool IsNavigationTarget(NavigationContext navigationContext)
        {
            return true;
        }

        public void OnNavigatedFrom(NavigationContext navigationContext)
        {

        }
    }
}