<INPUT id="DocUpload" contentEditable="false" style="Z-INDEX: 101; LEFT: 32px; WIDTH: 624px; POSITION: absolute; TOP: 24px; HEIGHT: 20px"
                    type="file" onchange="javascrip:HttpFileInputVale()" size="84" name="DocUpload" runat="server">

<script language="javascript">
        function HttpFileInputVale()
         ...{ 
            var strbty;
            var strArry;
            var intLength;
            var strDocName;
            var strArr;
            bty = document.all("DocUpload").value;
            strArry=bty.split("/");
            intLength=strArry.length;
            strDocName = strArry[intLength - 1];
            strArr = strDocName.split(".");
            document.all("txtDocName").value = bty;
            document.all("txtSheet").value = strArr[0];
        }
</script>

        导出工作表#region 导出工作表
        /**//// <summary>
        /// 功能：导出工作表
        /// 日期：2006-11-22
        /// 作者：杨义贤
        /// </summary>
        /// <param name="excelFile">文件路径</param>
        /// <returns></returns>
        private string[] GetExcelSheetNames(string strexcelFile)
        ...{
            OleDbConnection objConn = null;
            System.Data.DataTable dt = null;

            try
            ...{
                string connString = "Provider=Microsoft.Jet.OLEDB.4.0;" + 
                    "Data Source=" + strexcelFile + ";Extended Properties=Excel 8.0;";
                objConn = new OleDbConnection(connString);
                objConn.Open();
                dt = objConn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
 
                if(dt == null)
                ...{
                    return null;
                }
                string[] excelSheets = new string[dt.Rows.Count];
                int i = 0;

                foreach(DataRow row in dt.Rows)
                ...{
                    excelSheets[i] = row["TABLE_NAME"].ToString();
                    i++;
                }

                规矩的工作表#region 规矩的工作表
                ListItem objListItem;
                objListItem = new ListItem();
                objListItem.Text = excelSheets[j].Replace("$","").Trim();
                objListItem.Value = j.ToString();
                ddlSheet.Items.Add(objListItem);
                objListItem = null;
                #endregion
                return excelSheets;
            }
            catch(Exception ex)
            ...{
                return null;
                //throw ex;
            }
            finally
            ...{
                if(objConn != null)
                ...{
                    objConn.Close();
                    objConn.Dispose();
                }
                if(dt != null)
                ...{
                    dt.Dispose();
                }
            }
        }
        #endregion

private void Button1_Click(object sender, System.EventArgs e)
        ...{
            string strDataSource;
            strDataSource = txtDocName.Text.ToString();
            GetExcelSheetNames(strDataSource);
        }

将Excel中数据放到DataGrid中#region 将Excel中数据放到DataGrid中
        /**//// <summary>
        /// 功能：将Excel中数据放到DataGrid中
        /// 日期：2006-11-21
        /// 作者：杨义贤
        /// </summary>
        private void ExcelToDataGridShow(string strexcelFile)
        ...{
            string strDataSource = strexcelFile;
            // Excel文件连接字符串
            string connString; 
            connString = @"Provider=Microsoft.Jet.OLEDB.4.0;Data Source="+strDataSource+";"+"Extended Properties=Excel 8.0";
            // 定义OleDb连接
            OleDbConnection conn = new OleDbConnection(connString);

            // 定义OleDb命令
            string strTxt;//您选择的工作表
            strTxt = ddlSheet.SelectedItem.Text.ToString();
            string strCom;
            //strCom = "SELECT * FROM ["+strTxt+"$A3:O78]";//取出一个矩形区域的数据
            strCom = "SELECT * FROM ["+strTxt+"$]";
            OleDbCommand comm = new OleDbCommand(strCom,conn);
            // 定义OleDbDataAdapter
            OleDbDataAdapter adapter = new OleDbDataAdapter(comm);

            DataSet ds = new DataSet();

            // 向DataSet中填充数据
            adapter.Fill(ds);
            //行数
            int intItem = ds.Tables[0].Rows.Count;
            int intColumns = ds.Tables[0].Columns.Count;
            //行
            Label2.Text = "行数:"+intItem;
            //列
            Label3.Text = "列数:"+intColumns;

//            for(int i=0; i < intItem; i++)//行
//            {
//                ListItem objListItem = new ListItem();
//                objListItem.Text = "A"+i.ToString();
//                objListItem.Value = i.ToString();
//                ddlRow.Items.Add(objListItem);
//                objListItem = null;
//            }    

            //设置数据源
            DataGrid1.DataSource = ds;
            //数据绑定
            DataGrid1.DataBind();    
        }
        #endregion

private void btnDataGrid_Click(object sender, System.EventArgs e)
        ...{
            string strDataSource;
            strDataSource = txtDocName.Text.ToString();//文件路径
            ExcelToDataGridShow(strDataSource);
        }