Hi, I have an old C# 1.1/Firebird 1.5 project that is still using LLBLGen Pro v 1.2005 latest build.

I need to filter some data in a TypedList with PredicateExpression (self servicing), but I need to compare two columns in that TypedList to not show if Column1 = Column2

Is there a way to achieve that? I was looking around the forum and haven't found a way to do it.

Thanks a lot!

You should use a FieldCompareExpressionPredicate.

e.g.

filter.Add(new FieldCompareExpressionPredicate(
    OrderFields.OrderDate, ComparisonOperator.NotEqual,
    new Expression(OrderFields.ShippedDate)));

Thanks!

It works!