读出Excel所有sheet

private void GetDataFromExcelWithAppointSheetName(string Path)
        {
            //连接串
            string strConn = "Provider=Microsoft.Jet.OLEDB.4.0;" + "Data Source=" + Path + ";" + "Extended Properties='Excel 8.0;HDR=NO;IMEX=1';";
            OleDbConnection conn = new OleDbConnection(strConn);

            conn.Open();

            //返回Excel的架构，包括各个sheet表的名称,类型，创建时间和修改时间等
            DataTable dtSheetName = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { null, null, null, "Table" });

            //包含excel中表名的字符串数组
            string[] strTableNames = new string[dtSheetName.Rows.Count];
            for (int k = 0; k < dtSheetName.Rows.Count; k++)
            {
                strTableNames[k] = dtSheetName.Rows[k]["TABLE_NAME"].ToString();
            }

            OleDbDataAdapter myCommand = null;
            DataTable dt = new DataTable();

            //从指定的表明查询数据,可先把所有表明列出来供用户选择
            string strExcel = "select * from [" + strTableNames[0] + "]";
            myCommand = new OleDbDataAdapter(strExcel, strConn);
            dt = new DataTable();
            myCommand.Fill(dt);

            dataGridView1.DataSource = dt; //绑定到界面
        }