using System;
using System.Data;
using System.Windows.Forms;
using System.Data.OleDb;
namespace WindowsApplication2
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            //测试，将excel中的sheet1导入到sqlserver中   
            string connString = "Data Source=19F671E5918A46D;Database=AAA;User id=sa;pwd=SQL4567";
            System.Windows.Forms.OpenFileDialog fd = new OpenFileDialog();
            if (fd.ShowDialog() == DialogResult.OK)
            {
                TransferData(fd.FileName, "sheet1", connString);
            }
        }

        public void TransferData(string excelFile, string sheetName, string connectionString)   
        {   
            DataSet ds = new DataSet();   
            try  
            {   
                //获取全部数据   
                string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + excelFile + ";" + "Extended Properties=Excel 8.0;";   
                OleDbConnection conn = new OleDbConnection(strConn);   
                conn.Open();   
                string strExcel = "";   
                OleDbDataAdapter myCommand = null;   
                strExcel = string.Format("select * from [{0}$]", sheetName);   
                myCommand = new OleDbDataAdapter(strExcel, strConn);   
                myCommand.Fill(ds, sheetName);   
  
                //如果目标表不存在则创建   
                string strSql = string.Format("if object_id('{0}') is null create table {0}(", sheetName);   
                foreach (System.Data.DataColumn c in ds.Tables[0].Columns)   
                {   
                    strSql += string.Format("[{0}] varchar(255),", c.ColumnName);   
                }   
                strSql = strSql.Trim(',') + ")";   
  
                using (System.Data.SqlClient.SqlConnection sqlconn = new System.Data.SqlClient.SqlConnection(connectionString))   
                {   
                    sqlconn.Open();   
                    System.Data.SqlClient.SqlCommand command = sqlconn.CreateCommand();   
                    command.CommandText = strSql;   
                    command.ExecuteNonQuery();   
                    sqlconn.Close();   
                }   
                //用bcp导入数据   
                using (System.Data.SqlClient.SqlBulkCopy bcp = new System.Data.SqlClient.SqlBulkCopy(connectionString))   
                {   
                    bcp.SqlRowsCopied += new System.Data.SqlClient.SqlRowsCopiedEventHandler(bcp_SqlRowsCopied);   
                    bcp.BatchSize = 100;//每次传输的行数   
                    bcp.NotifyAfter = 100;//进度提示的行数   
                    bcp.DestinationTableName = sheetName;//目标表   
                    bcp.WriteToServer(ds.Tables[0]);   
                }   
            }   
            catch (Exception ex)   
            {   
                System.Windows.Forms.MessageBox.Show(ex.Message);   
            }   
  
        }

        //进度显示   
        void bcp_SqlRowsCopied(object sender, System.Data.SqlClient.SqlRowsCopiedEventArgs e)
        {
            this.Text = e.RowsCopied.ToString();
            this.Update();
        }


    }
}