Exemple #1
0
        private void WriteRecord(BinaryWriter dataOutput, Object[] objectArray)
        {
            dataOutput.Write((byte)' ');
            for (int j = 0; j < header.FieldArray.Length; j++)
            {
                /* iterate throught fields */

                switch (header.FieldArray[j].DataType)
                {
                case NativeDbType.Char:
                    if (objectArray[j] != null && objectArray[j] != DBNull.Value)
                    {
                        String str_value = objectArray[j].ToString();
                        dataOutput.Write(
                            Utils.textPadding(str_value,
                                              CharEncoding,
                                              header.FieldArray[j].
                                              FieldLength
                                              )
                            );
                    }
                    else
                    {
                        dataOutput.Write(
                            Utils.textPadding("",
                                              CharEncoding,
                                              header.FieldArray[j].
                                              FieldLength
                                              )
                            );
                    }

                    break;

                case NativeDbType.Date:
                    if (objectArray[j] != null && objectArray[j] != DBNull.Value)
                    {
                        DateTime tDate = (DateTime)objectArray[j];

                        dataOutput.Write(
                            CharEncoding.GetBytes(tDate.ToString("yyyyMMdd")));
                    }
                    else
                    {
                        dataOutput.Write(
                            Utils.FillArray(new byte[8], DBFFieldType.Space));
                    }

                    break;

                case NativeDbType.Float:

                    if (objectArray[j] != null && objectArray[j] != DBNull.Value)
                    {
                        Double tDouble = Convert.ToDouble(objectArray[j]);
                        dataOutput.Write(
                            Utils.NumericFormating(
                                tDouble,
                                CharEncoding,
                                header.FieldArray[j].FieldLength,
                                header.FieldArray[j].DecimalCount
                                )
                            );
                    }
                    else
                    {
                        dataOutput.Write(
                            Utils.textPadding(
                                DBFFieldType.Unknown,
                                CharEncoding,
                                header.FieldArray[j].FieldLength,
                                Utils.ALIGN_RIGHT
                                )
                            );
                    }

                    break;

                case NativeDbType.Numeric:

                    if (objectArray[j] != null && objectArray[j] != DBNull.Value)
                    {
                        Decimal tDecimal = Convert.ToDecimal(objectArray[j]);
                        dataOutput.Write(
                            Utils.NumericFormating(
                                tDecimal,
                                CharEncoding,
                                header.FieldArray[j].FieldLength,
                                header.FieldArray[j].DecimalCount
                                )
                            );
                    }
                    else
                    {
                        dataOutput.Write(
                            Utils.textPadding(
                                DBFFieldType.Unknown,
                                CharEncoding,
                                header.FieldArray[j].FieldLength,
                                Utils.ALIGN_RIGHT
                                )
                            );
                    }

                    break;

                case NativeDbType.Logical:

                    if (objectArray[j] != null && objectArray[j] != DBNull.Value)
                    {
                        if ((bool)objectArray[j])
                        {
                            dataOutput.Write(DBFFieldType.True);
                        }
                        else
                        {
                            dataOutput.Write(DBFFieldType.False);
                        }
                    }
                    else
                    {
                        dataOutput.Write(DBFFieldType.UnknownByte);
                    }

                    break;

                case NativeDbType.Memo:
                    if (objectArray[j] != null && objectArray[j] != DBNull.Value)
                    {
                        var tMemoValue = ((MemoValue)objectArray[j]);

                        tMemoValue.Write(this);

                        dataOutput.Write(Utils.NumericFormating(tMemoValue.Block, CharEncoding, 10, 0));
                    }
                    else
                    {
                        dataOutput.Write(
                            Utils.textPadding("",
                                              CharEncoding,
                                              10
                                              )
                            );
                    }


                    break;

                default:
                    throw new DBFException("Unknown field type "
                                           + header.FieldArray[j].DataType);
                }
            } /* iterating through the fields */
        }
Exemple #2
0
        private void WriteRecord(BinaryWriter dataOutput, DBFRecord record)
        {
            if (!record.IsDirty())
            {
                return;
            }

            //var originalPosition = _BaseStream.Position;
            _BaseStream.Seek(record.Position, SeekOrigin.Begin);
            dataOutput.Write((byte)' ');

            for (var j = 0; j < _Header.FieldArray.Length; j++)
            {
                /* iterate throught fields */
                if (!record.IsDirty(j))
                {
                    _BaseStream.Seek(_Header.FieldArray[j].FieldLength, SeekOrigin.Current);
                    continue;
                }

                var objectArray = record.ValueArray;

                switch (_Header.FieldArray[j].DataType)
                {
                case NativeDbType.UnicodeChar:
                    var str_valueU = (objectArray[j] != null && objectArray[j] != DBNull.Value) ? objectArray[j].ToString() : "";
                    var bufferU    = Utils.textPadding(str_valueU,
                                                       _UCharEncoding,
                                                       _Header.FieldArray[j].FieldLength,
                                                       Utils.ALIGN_LEFT,
                                                       (byte)0x00
                                                       );
                    dataOutput.Write(bufferU);
                    break;

                case NativeDbType.Char:
                    var str_value = (objectArray[j] != null && objectArray[j] != DBNull.Value) ? objectArray[j].ToString() : "";
                    var buffer    = Utils.textPadding(str_value,
                                                      CharEncoding,
                                                      _Header.FieldArray[j].FieldLength
                                                      );
                    dataOutput.Write(buffer);
                    break;

                case NativeDbType.Date:
                    if (objectArray[j] != null && objectArray[j] != DBNull.Value)
                    {
                        var tDate = (DateTime)objectArray[j];

                        dataOutput.Write(
                            CharEncoding.GetBytes(tDate.ToString("yyyyMMdd")));
                    }
                    else
                    {
                        dataOutput.Write(
                            Utils.FillArray(new byte[8], DBFFieldType.Space));
                    }

                    break;

                case NativeDbType.Float:

                    if (objectArray[j] != null && objectArray[j] != DBNull.Value)
                    {
                        var tDouble = Convert.ToDouble(objectArray[j]);
                        dataOutput.Write(
                            Utils.NumericFormating(
                                tDouble,
                                CharEncoding,
                                _Header.FieldArray[j].FieldLength,
                                _Header.FieldArray[j].DecimalCount
                                )
                            );
                    }
                    else
                    {
                        dataOutput.Write(
                            Utils.textPadding(
                                NullSymbol,
                                CharEncoding,
                                _Header.FieldArray[j].FieldLength,
                                Utils.ALIGN_RIGHT
                                )
                            );
                    }

                    break;

                case NativeDbType.Numeric:

                    if (objectArray[j] != null && objectArray[j] != DBNull.Value)
                    {
                        var tDecimal = Convert.ToDecimal(objectArray[j]);
                        dataOutput.Write(
                            Utils.NumericFormating(
                                tDecimal,
                                CharEncoding,
                                _Header.FieldArray[j].FieldLength,
                                _Header.FieldArray[j].DecimalCount
                                )
                            );
                    }
                    else
                    {
                        dataOutput.Write(
                            Utils.textPadding(
                                NullSymbol,
                                CharEncoding,
                                _Header.FieldArray[j].FieldLength,
                                Utils.ALIGN_RIGHT
                                )
                            );
                    }

                    break;

                case NativeDbType.Logical:

                    if (objectArray[j] != null && objectArray[j] != DBNull.Value)
                    {
                        if ((bool)objectArray[j])
                        {
                            dataOutput.Write(DBFFieldType.True);
                        }
                        else
                        {
                            dataOutput.Write(DBFFieldType.False);
                        }
                    }
                    else
                    {
                        dataOutput.Write(DBFFieldType.UnknownByte);
                    }

                    break;

                case NativeDbType.Memo:
                    if (objectArray[j] != null && objectArray[j] != DBNull.Value)
                    {
                        var tMemoValue = ((MemoValue)objectArray[j]);

                        tMemoValue.Write(this);

                        dataOutput.Write(Utils.NumericFormating(tMemoValue.Block, CharEncoding, 10, 0));
                    }
                    else
                    {
                        dataOutput.Write(
                            Utils.textPadding("",
                                              CharEncoding,
                                              10
                                              )
                            );
                    }


                    break;

                default:
                    throw new DBFException("Unknown field type "
                                           + _Header.FieldArray[j].DataType);
                }
            } /* iterating through the fields */
            _BinaryWriter.Flush();
            //_BaseStream.Seek(originalPosition, SeekOrigin.Begin);
        }