protected override bool InternalDefault(Program program, IRow oldRow, IRow newRow, BitArray valueFlags, string columnName, bool isDescending)
{
if (isDescending)
{
BitArray localValueFlags = newRow.GetValueFlags();
bool changed = false;
if (PropagateDefaultLeft)
{
changed = LeftNode.Default(program, oldRow, newRow, valueFlags, columnName);
}
if (PropagateDefaultRight)
{
changed = RightNode.Default(program, oldRow, newRow, valueFlags, columnName) || changed;
}
if (changed)
{
for (int index = 0; index < newRow.DataType.Columns.Count; index++)
{
if (!localValueFlags[index] && newRow.HasValue(index))
{
Change(program, oldRow, newRow, valueFlags, newRow.DataType.Columns[index].Name);
}
}
}
return(changed);
}
return(false);
}