public DbfFile(DataTable dt)
{
int millenium = 2000; //Free Y3K bug
this.Header = DbfFileHeader.GetDefaultHeader();
this.Header.NumberOfRecords = dt.Rows.Count;// + 1;
this.Header.LastEdited = new byte[] { (byte)(DateTime.Today.Year - millenium), (byte)DateTime.Today.Month, (byte)DateTime.Today.Day };
this.Header.LengthOfHeader = (short)
(sizeof(byte) //version
+ this.Header.LastEdited.Length
+ sizeof(int) //NumberOfRecords
+ sizeof(short) //LengthOfHeader
+ sizeof(short) //LengthOfRecord
+ this.Header.ReservedOne.Length
+ sizeof(byte) //IncompleteTransaction
+ sizeof(byte) //EncryptionFlag
+ this.Header.FreeRecordThread.Length
+ this.Header.ReservedMultiUser.Length
+ sizeof(byte) //MdxFlag
+ sizeof(byte) //Language
+ this.Header.ReservedTwo.Length
//+ (this.Header.NumberOfRecords * this.Header.LengthOfRecord)
//+ (this.Header.NumberOfRecords * FieldDescriptor.Size)
+ sizeof(byte) //Terminator
);
this._dataTable = dt;
}