protected override bool InternalValidate(Program program, IRow oldRow, IRow newRow, BitArray valueFlags, string columnName, bool isDescending, bool isProposable)
{
if (isDescending)
{
bool changed = false;
if (PropagateValidateLeft)
{
changed = LeftNode.Validate(program, oldRow, newRow, valueFlags, columnName);
}
if (PropagateValidateRight)
{
changed = RightNode.Validate(program, oldRow, newRow, valueFlags, columnName) || changed;
}
return(changed);
}
return(false);
}
