private bool First()
{
if(_Table._RowLink.First != -1)
{
RowIndex = 0;
_CurrentHeader = new sRowHeader( _Table._RowLink.First, ref Stream );
ReadData();
_IsNew = false;
_IsPrimed = true;
return true;
}
_CurrentHeader = null;
return false;
}
public bool Read()
{
_IsDeleted = false;
if( !_IsPrimed )
return First();
RowIndex++;
sRowHeader nextRow = _CurrentHeader.GetNext( ref Stream );
if(nextRow == null)
return false;
_CurrentHeader = nextRow;
ReadData();
_IsNew = false;
return true;
}
public bool StartNew()
{
RowData.Clear();
for( int i = 0; i < _Table.ColumnCount; i++ )
RowData.Add( null );
_CurrentHeader = new sRowHeader();
_CurrentHeader._MyOffset = Reader.BaseStream.Length;
_CurrentHeader._PrevOffset = _Table._RowLink.Last;
_IsNew = true;
return true;
}
public bool Prev()
{
_IsDeleted = false;
sRowHeader prevRow = _CurrentHeader.GetPrev( ref Stream );
if(prevRow == null)
return false;
_CurrentHeader = prevRow;
ReadData();
_IsNew = false;
RowIndex--;
return true;
}
