private void ReadHeader()
{
this._dbfHeader = new TDbfHeader();
try
{
this._dbfHeader.Version = this._binaryReader.ReadSByte(); //第1字节
this._dbfHeader.LastModifyYear = this._binaryReader.ReadByte(); //第2字节
this._dbfHeader.LastModifyMonth = this._binaryReader.ReadByte(); //第3字节
this._dbfHeader.LastModifyDay = this._binaryReader.ReadByte(); //第4字节
this._dbfHeader.RecordCount = this._binaryReader.ReadInt32(); //第5-8字节
this._dbfHeader.HeaderLength = this._binaryReader.ReadUInt16(); //第9-10字节
this._dbfHeader.RecordLength = this._binaryReader.ReadUInt16(); //第11-12字节
this._dbfHeader.Reserved = this._binaryReader.ReadBytes(16); //第13-14字节
this._dbfHeader.TableFlag = this._binaryReader.ReadSByte(); //第15字节
this._dbfHeader.CodePageFlag = this._binaryReader.ReadSByte(); //第16字节
this._dbfHeader.Reserved2 = this._binaryReader.ReadBytes(2); //第17-18字节
this._fieldCount = GetFieldCount();
}
catch
{
throw new Exception("fail to read file header.");
}
}
public void Close()
{
this.CloseFileStream();
_recordBuffer = null;
_dbfHeader = null;
_dbfFields = null;
_isFileOpened = false;
_fieldCount = 0;
}