Using QueryOver how do I write a Where statement against an “is in”

Question

When using QueryOver, I normally write a Where clause where the field exactly matches a value:

var subset = _session.QueryOver<ProviderOrganisation>()
.Where(x => x.Type == "Hospital")
.List<ProviderOrganisation>();

But now I want to match the field against a list of values, so in SQL something like a "Where x is in ():"

var subset = _session.QueryOver<ProviderOrganisation>()
.Where(x => x.Code is In (ListOfSubsetCodes))
.List<ProviderOrganisation>();

How do I do that please?

Thanks

Answer 1

您可以使用contains进行以下操作：

.Where(x => ListOfSubsetCodes.Contains (x.Code)) 

Answer 2

You've used QueryOver, and another way of doing this:

.WhereRestrictionOn(x => x.Code).IsIn(ListOfSubsetCodes)

I think x => ListOfSubsetCodes.Contains() will work well for LINQ, but not for QueryOver.