SamplePreSystem-CS/SamplePreSystem.UI/ViewModel/QueryManager/SampleQueryViewModel.cs

using CommunityToolkit.Mvvm.ComponentModel;
using CommunityToolkit.Mvvm.Input;
using Models.Models;
using SamplePre.ProcessBll.SampleSequence;
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.IO;
using System.Linq;
using System.Runtime.CompilerServices;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using OfficeOpenXml;

namespace SamplePreSystem.UI.ViewModel.QueryManager
{
    public partial class SampleQueryViewModel : ObservableObject
    {
        public event PropertyChangedEventHandler PropertyChanged;

        SampleSequenceBll sampleSequenceBll = new SampleSequenceBll();
        public SampleQueryViewModel() 
        {
            GetData();
        }

        private DateTime _startDate = DateTime.Parse(DateTime.Now.ToString("yyyy-MM-dd") + " 00:00:00");  

        public DateTime StartDate
        {
            get { return _startDate; }
            set { 
                SetProperty(ref _startDate, value);
                
            }
        }


        private DateTime _endDate = DateTime.Parse(DateTime.Now.ToString("yyyy-MM-dd") + " 00:00:00");

        public DateTime EndDate
        {
            get { return _endDate; }
            set
            {
               
                SetProperty(ref _endDate, value);
               
            }
        }

        private List<tube_input> _sampleList = new List<tube_input>();

        public List<tube_input> SampleList
        {
            get { return _sampleList; }
            set {
            
            SetProperty(ref _sampleList, value);
            }
        }



        protected void OnPropertyChanged([CallerMemberName] string propertyName = null)
        {
            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
        }


        [RelayCommand]
        public void GetData()
        {
            DateTime dt1 = DateTime.Parse(StartDate.ToString("yyyy-MM-dd") + " 00:00:00");
            DateTime dt2 = DateTime.Parse(EndDate.ToString("yyyy-MM-dd") + " 23:00:00");

            SampleList = sampleSequenceBll.GetTubeData(dt1, dt2);


        }

        [RelayCommand]
        public void ExportExcel()
        {
            if (SampleList == null || SampleList.Count == 0)
            {
                MessageBox.Show("没有数据可导出", "提示", MessageBoxButton.OK, MessageBoxImage.Information);
                return;
            }

            try
            {
                // 设置EPPlus许可证为个人使用
                ExcelPackage.LicenseContext = OfficeOpenXml.LicenseContext.NonCommercial;

                // 创建保存文件对话框
                Microsoft.Win32.SaveFileDialog saveFileDialog = new Microsoft.Win32.SaveFileDialog();
                saveFileDialog.Filter = "Excel文件 (*.xlsx)|*.xlsx";
                saveFileDialog.FileName = "样品查询导出_" + DateTime.Now.ToString("yyyyMMddHHmmss");

                if (saveFileDialog.ShowDialog() == true)
                {
                    string filePath = saveFileDialog.FileName;

                    // 创建Excel包
                    using (ExcelPackage package = new ExcelPackage())
                    {
                        // 创建工作表
                        ExcelWorksheet worksheet = package.Workbook.Worksheets.Add("样品数据");

                        // 设置表头
                        worksheet.Cells[1, 1].Value = "二维码";
                        worksheet.Cells[1, 2].Value = "样品名称";
                        worksheet.Cells[1, 3].Value = "标准ID";
                        worksheet.Cells[1, 4].Value = "标准名称";
                        worksheet.Cells[1, 5].Value = "录入人员";
                        worksheet.Cells[1, 6].Value = "录入日期";
                        worksheet.Cells[1, 7].Value = "批号";

                        // 设置表头样式
                        using (var range = worksheet.Cells["A1:G1"])
                        {
                            range.Style.Font.Bold = true;
                            range.Style.Fill.PatternType = OfficeOpenXml.Style.ExcelFillStyle.Solid;
                            range.Style.Fill.BackgroundColor.SetColor(System.Drawing.Color.LightGray);
                            range.Style.HorizontalAlignment = OfficeOpenXml.Style.ExcelHorizontalAlignment.Center;
                        }

                        // 填充数据
                        for (int i = 0; i < SampleList.Count; i++)
                        {
                            var sample = SampleList[i];
                            worksheet.Cells[i + 2, 1].Value = sample.qrcode;
                            worksheet.Cells[i + 2, 2].Value = sample.item_name;
                            worksheet.Cells[i + 2, 3].Value = sample.standrad_id;
                            worksheet.Cells[i + 2, 4].Value = sample.standrad;
                            worksheet.Cells[i + 2, 5].Value = sample.input_user;
                            worksheet.Cells[i + 2, 6].Value = sample.input_date;
                            worksheet.Cells[i + 2, 7].Value = sample.bach_no;
                        }

                        // 自动调整列宽
                        worksheet.Cells[worksheet.Dimension.Address].AutoFitColumns();

                        // 保存文件
                        FileInfo file = new FileInfo(filePath);
                        package.SaveAs(file);

                        MessageBox.Show("导出成功！", "提示", MessageBoxButton.OK, MessageBoxImage.Information);
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show("导出失败：" + ex.Message, "错误", MessageBoxButton.OK, MessageBoxImage.Error);
            }
        }


    }
}