linq - ParseException: No property or field '???' exists in type 'DynamicClass' when using GroupBy and Select -

i'm using entityframework system.linq.dynamic , i've defined employee poco class follows:

public class employee {     public long id { get; set; }     public string firstname { get; set; }     public string lastname { get; set; }     public company company { get; set; }     public country country { get; set; } } 

i'm using code groupby country name:

var query = employees.include(e => e.company).include(e => e.country);   var groupbyquery = query.groupby("new (country.code groupbyfield)", "new (it xemployee, it.company xcompany, it.country xcountry)"); var selectquery = groupbyquery.select("new (key.groupbyfield, grouping)"); var grouping = selectquery.select("it.grouping") iqueryable<igrouping<dynamicclass, dynamicclass>>; var objects = grouping.first().asqueryable() iqueryable<object>;  // line gives me : parseexception: no property or field 'xemployee' exists in type 'dynamicclass' var employees = objects.select("it.xemployee"); 

it's strange because when dump properties dynamicclass, xemployee valid public property ?

var firstobject = objects.first(); firstobject.gettype().getproperties().dump(); 

shows

i've created extension method gets property object , casts required type.

see code extension method "select"

public static class dynamicqueryableextensions {    public static ienumerable<tentity> select<tentity>(this ienumerable<object> source, string propertyname)    {        return source.select(x => getpropertyvalue<tentity>(x, propertyname));    }     private static t getpropertyvalue<t>(object self, string propertyname)    {        var type = self.gettype();        var propinfo = type.getproperty(propertyname);         try        {            return propinfo != null ? (t)propinfo.getvalue(self, null) : default(t);        }        catch        {            return default(t);        }    } } 

the code used follows:

// line work fine. var employees = objects.select<employee>("xemployee"); employees.dump(); 

working example, see kendogridbinderex project on github.