ÐÂÊÖС°×ÓÃC# winform ¶ÁÈ¡Excel±íµÄʵÏÖ

using System.Data.OleDb; //ÃüÃû¿Õ¼ä

//¸ù¾ÝexcleµÄ·¾¶°ÑµÚÒ»¸ösheelÖеÄÄÚÈÝ·ÅÈëdatatable
    public static DataTable ReadExcelToTable(string path)//excel´æ·ÅµÄ·¾¶
    {
      try
      {
 
        //Á¬½Ó×Ö·û´®
        string connstring = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + path + ";Extended Properties='Excel 8.0;HDR=NO;IMEX=1';"; // Office 07¼°ÒÔÉÏ°æ±¾ ²»ÄܳöÏÖ¶àÓàµÄ¿Õ¸ñ ¶øÇÒ·ÖºÅ×¢Òâ
        //string connstring = Provider=Microsoft.JET.OLEDB.4.0;Data Source=" + path + ";Extended Properties='Excel 8.0;HDR=NO;IMEX=1';"; //Office 07ÒÔÏ°汾 
        using (OleDbConnection conn = new OleDbConnection(connstring))
        {
          conn.Open();
          DataTable sheetsName = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "Table" }); //µÃµ½ËùÓÐsheetµÄÃû×Ö
          string firstSheetName = sheetsName.Rows[0][2].ToString(); //µÃµ½µÚÒ»¸ösheetµÄÃû×Ö
          string sql = string.Format("SELECT * FROM [{0}]", firstSheetName); //²éѯ×Ö·û´®          //string sql = string.Format("SELECT * FROM [{0}] WHERE [ÿÈÕÆÚ] is not null", firstSheetName); //²éѯ×Ö·û´®
          OleDbDataAdapter ada = new OleDbDataAdapter(sql, connstring);
          DataSet set = new DataSet();
          ada.Fill(set);
          return set.Tables[0];
        }
      }
      catch (Exception)
      {
        return null;
      }
 
    }

  private void button1_Click(object sender, EventArgs e)
    {
      string folder_path = this.textBox1.Text.Trim();
       dataGridView1.DataSource = null; //ÿ´Î´ò¿ªÇå¿ÕÄÚÈÝ
       DataTable dt = ReadExcelToTable(folder_path);
      dataGridView1.DataSource = dt;  
 
    }