快速读取csv平面文件，并导入数据库，简单小工具

using DataToDeal;
using LumenWorks.Framework.IO.Csv;
using Microsoft.Win32;
using System;
using System.Collections.Generic;
using System.Data;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace CSVReaderFast
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
            this.Loaded += MainWindow_Loaded;
        }
        DataTable dt = null;
       
        
        //update VEYear set DescriptionChinese=replace(DescriptionChinese,'?','')
        public string str = "Data Source=.;Initial Catalog=RBVehicle;User ID=sa;Password=xwl;Max Pool Size = 512";
        void MainWindow_Loaded(object sender, RoutedEventArgs e)
        {
            //简单对应数据库表名，其实完全可以数据库获取
            string[] tableNamelist = { "RBAutoCalc", "RBRegAdjustments", "RBRegions", "RBStdEquip", "RBVehicle", "VEFamily", "VEMake", "VEYear" };
            foreach (var item in tableNamelist)
            {
                this.cbx1.Items.Add(item);
            }
        }
      //打开csv文件
        private void Button_Click_1(object sender, RoutedEventArgs e)
        {
        dt = new DataTable();

            OpenFileDialog window = new OpenFileDialog();
            window.FileName = "文件";
            window.DefaultExt = "*.*";
            window.Filter = "CSV文件|*.CSV";
            Nullable<bool> result = window.ShowDialog();
            if (result == true)
            {
                string fileName = window.FileName;
                using (CsvReader csv =
                new CsvReader(new StreamReader(fileName), true))
                {
                    //字段数量
                    int fieldCount = csv.FieldCount;
                    //标题数组
                    string[] headers = csv.GetFieldHeaders();
                    //创建列名称
                    for (int i = 0; i < headers.Count(); i++)
                    {
                        DataColumn dc = new DataColumn(headers[i]);
                        dt.Columns.Add(dc);
                    }
                    //只进的游标读取
                    while (csv.ReadNextRecord())
                    {
                        DataRow dr = dt.NewRow();
                        for (int j = 0; j < fieldCount; j++)
                        {
                            dr[j] = csv[j];
                        }
                        dt.Rows.Add(dr);
                    }
                    if (dt.Rows.Count > 0)
                    {
                        this.DataGrid1.ItemsSource = dt.DefaultView;
                        this.labe1.Content = "共" + dt.Rows.Count + "条";
                    }
                }
            }
        }
        private void Button_Click(object sender, RoutedEventArgs e)
        {
            if (this.cbx1.SelectedIndex != -1)
            {
                if (dt != null && dt.Rows.Count > 0)
                {
                    string TableName = this.cbx1.SelectedItem.ToString();

                    string returnvalue = new HelpFile().SqlBulkCopyData(TableName, dt, str);
                    if (returnvalue.Contains('@'))
                    {
                        MessageBox.Show("导入异常：" + returnvalue.Split('@').Last());
                    }
                    MessageBox.Show("导入成功！");
                    lable1.Content = returnvalue;
                }
                else
                {
                    MessageBox.Show("没有数据可导入，请先加载数据！");
                }


            }
        }
    }
}