Question

I am using the code snippet below to parse a list of zip codes from a form and then building a predicate to return records from the Entity that match any zip codes in the parsed list.

List<string> zips = ParseCSV("90210,56387,20015");
predicate = predicate.And(n => zips.Contains(n.ZIP));

Now a new requirement has come up that says that the comma delimited list might contain partial zip codes and that these should be returned too. I would normally do this with a Contains. n.ZIP.Contains("902")

But if the list of zips now becomes as below:

List<string> zips = ParseCSV("902,56387,215"); 
predicate = predicate.And(n => zips.Contains(n.ZIP));

I am not sure how to go about this when I am already doing a contains on the zips. Any suggestions?

TIA

Answer 1

I think this will check if there is any partial zip code, which is contained in ZIP:

predicate = predicate.And(n => zips.Any(z => n.ZIP.Contains(z)));