BKI_DichVuMatDat.F152_DANH_SACH_NHAN_VIEN_EXCEL.load_data_from_file_to_data_table C# (CSharp) Method

        private DataTable load_data_from_file_to_data_table(string ip_str_path, string ip_name_sheet_import)
        {
            string conStr = "";
            string SheetName = ip_name_sheet_import + "$";

            conStr = ConfigurationManager.ConnectionStrings["Excel07ConString"].ConnectionString;
            conStr = String.Format(conStr, ip_str_path, "Yes");
            OleDbConnection con = new OleDbConnection(conStr);
            OleDbCommand ExcelCommand = new OleDbCommand();
            ExcelCommand.Connection = con;
            con.Open();
            DataTable ExcelDataSet = new DataTable();
            ExcelDataSet = con.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, null);
            DataTable dt = new DataTable();
            if (ExcelDataSet != null && ExcelDataSet.Rows.Count > 0)
            {
                //string SheetName = ExcelDataSet.Rows[0]["TABLE_NAME"].ToString(); // get sheetname
                ExcelCommand.CommandText = "SELECT * From [" + SheetName + "]";// WHERE [" + ExcelHopDong.MA_NHAN_VIEN + "] IS NOT NULL";
                OleDbDataAdapter ExcelAdapter = new OleDbDataAdapter(ExcelCommand);
                ExcelAdapter.SelectCommand = ExcelCommand;
                ExcelAdapter.Fill(dt);
            }
            con.Close();
            DataTable v_dt_result = dt.Rows.Cast<DataRow>().Where(row => !row.ItemArray.All(field => field is System.DBNull || string.IsNullOrEmpty(field.ToString()) == true)).CopyToDataTable();
            return v_dt_result;
        }