EXCEL数据导入数据库的另一种方式

一、直接代码

 　　　　　　　var fileResult = openFileDialog1.ShowDialog();
             if (fileResult == System.Windows.Forms.DialogResult.OK)
             {
                 var fileName = openFileDialog1.FileName;
                 OleDbConnection conn = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + fileName + ";Extended Properties=\"Excel 12.0 　　　　　　　　　　　　Xml;HDR=YES;\"");
                 OleDbDataAdapter da = new OleDbDataAdapter("select * from [Sheet1$]", conn);
                 da.Fill(dataTable);
                 dataGridView1.AutoGenerateColumns = true;
                 dataGridView1.DataSource = dataTable.DefaultView;
                 progressBar1.Maximum = dataTable.Rows.Count;
                 label1.Text = dataTable.Rows.Count.ToString();
             }

 foreach (DataRow dataRow in dataTable.Rows)
             {
                 index++;
                 if (dataRow[].ToString() == null && dataRow[].ToString().Trim() == "")
                 {
                     continue;
                 }
                 User user= new User();
                 //省略代码
                 context.ArchivesBases.Add(archivesBase);                 if (index >=  && index %  == )
                 {
                     context.SaveChanges();
                     //释放持久层已经存在数据
                     GC.Collect();//垃圾回收器
                     context = new DAL.TodaySoftHRAMSContext();
                 }
             }