Creating a common predicate function

Question

Firstly, I am not sure what terms to use to ask this question, which is probably why I have not found an answer from searching myself.

So I am working with Linq to S

Answer 1

Have you tried PredicateBuilder? I haven't used it in over a year, but I found it effective when writing "Or Where" Queries.

http://www.albahari.com/nutshell/predicatebuilder.aspx

An example from their page:

IQueryable SearchProducts (params string[] keywords)
{
  var predicate = PredicateBuilder.False();

  foreach (string keyword in keywords)
  {
    string temp = keyword;
    predicate = predicate.Or (p => p.Description.Contains (temp));
  }
  return dataContext.Products.Where (predicate);
}