private void ScrubInternalTo()
{
if(_internalReturnValue == null)
{
int cnt = 1;
if(Columns != null)
{
cnt = Columns.Count;
}
_internalReturnValue = new List<IBinaryDataListItem>(cnt);
}
foreach(IBinaryDataListItem t in _internalReturnValue)
{
t.ToClear();
}
}