excel导入DataTable

http://www.cnblogs.com/top5/archive/2010/03/12/1684559.html

--下载excel的dll

http://bbs.csdn.net/topics/390271458

http://zhidao.baidu.com/link?url=c1m-oJjceP0oXP7_Hlm2EyoD9F71SVmlERMX3pPDSRgiKJxeIaoZV0xav9jxdJm04ibUB5h05k1wi8Hjl45O6q

excel 导入到datatable

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using Microsoft.Office.Interop.Excel;
using System.IO;
using System.Reflection;
using System.Data.OleDb;

 private void Bingdgv()
        {
            if (FilePath == "")
            {
                return;
            }
            try
            {
                OleDbConnection conn = new OleDbConnection(ExcelConnStr);
                string sql = "select * from [Sheet1$]";
                if (conn.State == ConnectionState.Closed)
                {
                    conn.Open();
                }
                OleDbDataAdapter myCommand = new OleDbDataAdapter(sql, conn);
                ds = new DataSet();
                myCommand.Fill(ds, "[Sheet1$]");
                conn.Close();

                dgvData.DataMember = "[Sheet1$]";
                dgvData.DataSource = ds;
                conn.Close();
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
                throw ex;
            }
        }

“System.Data.DataTable”和“Microsoft.Office.Interop.Excel.DataTable”之间的不明确的引用

DataTable dt=new DataTable();了吗??
引用了 uisng System.Data;吗??

using Excel = Microsoft.Office.Interop.Excel;
这样就OK了，呵呵