private static DBFHeader ReadDBFHeader(BinaryReader br)
{
// Read in header one item at a time
DBFHeader header = new DBFHeader();
header.version = br.ReadByte();
header.updateYear = br.ReadByte();
header.updateMonth = br.ReadByte();
header.updateDay = br.ReadByte();
header.numRecords = br.ReadInt32();
header.headerLen = br.ReadInt16();
header.recordLen = br.ReadInt16();
header.reserved1 = br.ReadInt16();
header.incompleteTrans = br.ReadByte();
header.encryptionFlag = br.ReadByte();
header.reserved2 = br.ReadInt32();
header.reserved3 = br.ReadInt64();
header.MDX = br.ReadByte();
header.language = br.ReadByte();
header.reserved4 = br.ReadInt16();
return header;
}
private static DataTable FillColumnsInDataTable(DataTable dt, BinaryReader br, DBFHeader header, ArrayList fields)
{
// Read in the first row of records, we need this to help determine column types below
(br.BaseStream).Seek(header.headerLen + 1, SeekOrigin.Begin);
// Create the columns in our new DataTable
DataColumn col = null;
dt.Columns.Add(new DataColumn("DELETED_FLAG", typeof(bool)));
foreach (FieldDescriptor field in fields)
{
byte[] numberByteArray = br.ReadBytes(field.fieldLen);
switch (field.fieldType)
{
case dBaseType.N:
if (dBaseConverter.N_IsDecimal(numberByteArray))
{
col = new DataColumn(field.fieldName, typeof(decimal));
}
else
{
col = new DataColumn(field.fieldName, typeof(int));
}
break;
case dBaseType.C:
col = new DataColumn(field.fieldName, typeof(string));
break;
case dBaseType.T:
col = new DataColumn(field.fieldName, typeof(DateTime));
break;
case dBaseType.D:
col = new DataColumn(field.fieldName, typeof(DateTime));
break;
case dBaseType.L:
col = new DataColumn(field.fieldName, typeof(bool));
break;
case dBaseType.F:
col = new DataColumn(field.fieldName, typeof(Double));
break;
case dBaseType.M:
//Field Type Memo...
col = new DataColumn(field.fieldName, typeof(byte[]));
break;
}
if (col != null) dt.Columns.Add(col);
}
return dt;
}
