BAQ/dashboard with LINQ query filtering?

Hello,
Thanks for the response. Normally I’d use SQL query filters but in this case I want to do something more complicated that I think is more easily managed in C#. I was hoping to get a simple example to get me started. How would I write something that looks like this:

newresults=originalresults.Where(x=>x.PartNum.Startswith(this.Parameter1));

I know this is wrong, but how would the syntax actually look for this? If I have some parameter called “Parameter1” and I’m trying to filter based on PartNum field