导入导出CSV

const string dataPath = @"D:\Users\jin_h\Documents\Visual Studio 2013\Projects\ConsoleApplication1\ConsoleApplication1\";

private static DataTable GetCsvData(string filePath, string fileName)

        {

            string connString = @"Driver={Microsoft Text Driver (*.txt; *.csv)};Dbq=" + filePath + ";Extensions=asc,csv,tab,txt;";

            try

            {

                using (var odbcConn = new OdbcConnection(connString))

                {

                    odbcConn.Open();

                    var oleComm = new OdbcCommand();

                    oleComm.Connection = odbcConn;

                    oleComm.CommandText = "select * from [" + fileName + "#csv]";

                    var adapter = new OdbcDataAdapter(oleComm);

                    var ds = new DataSet();

                    adapter.Fill(ds, fileName);

                    return ds.Tables[0];

                }

            }

            catch (Exception ex)

            {

                throw ex;

            }

        }







 private static string ExportCSV(IEnumerable<ErrorData> errorDate)

        {

            var sbBuilder = new StringBuilder();

            string[] title = { "ScenciSpotID", "DistrictNamePath", "GeographicRegionKeyword", "NoMatchField" };



            foreach (var t in title)

            {

                sbBuilder.Append(t + ",");

            }

            sbBuilder.Append("\n");

            foreach (var field in errorDate)

            {

                sbBuilder.Append(field.ScenciSpotID + ",");

                sbBuilder.Append(field.DistrictNamePath + ",");

                sbBuilder.Append(field.GeographicRegionKeyword + ",");

                sbBuilder.Append(field.NoMatchField + ",");

                sbBuilder.Append("\n");

            }

            return sbBuilder.ToString();

        }