asp.net web api - How to transform OData filter to a LINQ expression? -

i'm trying extract filter expression odataqueryoptions can use in business logic class.

public pageresult<poco> get(odataqueryoptions odataqueryoptions) {     expression<func<poco, bool>> myexpression = ... // do here?      var result = _mybusinesslogic.search(myexpression);     return new pageresult<poco>(result, null, null); } 

i took @ blog describing translating query hql here , think (at least hope) that's overkill i'm trying do.

i need filter expression in expression<func<poco, bool>> form. tried playing applyto() can't quite it. appreciated.

we have filterbinder class suits needs internal unfortunately. nevertheless simple trick hold of $filter expression,

public static class odataqueryoptionsextensions {     public static expression toexpression<telement>(this filterqueryoption filter)     {         iqueryable queryable = enumerable.empty<telement>().asqueryable();         queryable = filter.applyto(queryable, new odataquerysettings());         return queryable.expression;     } } 

in case, can do,

public pageresult<poco> get(odataqueryoptions odataqueryoptions) {     expression<func<poco, bool>> myexpression = odataqueryoptions.filter.toexpression<poco>();      var result = _mybusinesslogic.search(myexpression);     return new pageresult<poco>(result, null, null); } 

notice expression contains looks more this, sotests.customer[].where($it => conditional-expression). so, might have extract conditional expression lambda.