简单的将Excel数据同步到SqlServer数据库中

1.创建一个WinForm程序，添加一个Button控件

2.Button事件

 private void button1_Click(object sender, EventArgs e)
        {
            System.Windows.Forms.OpenFileDialog fd = new OpenFileDialog();
            if (fd.ShowDialog() == DialogResult.OK)
            {
                string fileName = fd.FileName;
                syncExcelToDataBase(fileName, textBox1.Text.ToString());
            }
        }

3.从Excel读取数据到DataTable

       private void syncExcelToDataBase(string excelfilepath, string sheetName)
        {
            string strConn = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + excelfilepath + ";" + "Extended Properties='Excel 12.0; HDR = Yes'";
            string strExcel = string.Format("select * from [{0}$]", sheetName);
            OleDbDataAdapter da = new OleDbDataAdapter(strExcel, strConn);
            DataSet ds = new DataSet();
            try
            {
                da.Fill(ds);
                dt = ds.Tables[0];
                if (dt != null && dt.Rows.Count > 0)
                {
                    foreach (DataRow dr in dt.Rows)
                    {
                        Update(dr);
                    }
                }

            }
            catch (Exception err)
            {
                MessageBox.Show("操作失败！" + err.ToString());
            }
        }

4.更新到Sql server 数据库中

        private void Update(DataRow dr)
        { 
            string saleName = dr["TELESALES MANILA"].ToString().Trim();
            string crn = dr["CRN"].ToString().Trim();
            if(!string.IsNullOrEmpty(saleName) && saleName != "#N/A")
            {
                string[] arr = saleName.Split(' ');
                if(arr.Length>0)
                {
                    string sql1 = "SELECT *FROM [dbo].[PUserAdmin] where FirstName='" + arr[0] + "' and LastName='" + arr[1] + "'";
                    DataTable dtResult = SqlHelper.ExecuteDataTable(sql1,CommandType.Text);
                        string sql2 = "update [dbo].[PAgents] set BFax='" + dtResult.Rows[0][0] + "' where CRN='" + crn + "'";
                        SqlHelper.ExecuteNonQuery(sql2, CommandType.Text);
                }
            }
        }