c# - Extract property of object from entity framework query -

i'm new ef , i'm having trouble doing simplest thing...

public class person : dto {     public string id { get; set; }     public string fname { get; set; }     public string lname{ get; set; } } 

i use either iqueryable<person> or objectreuslt<person> extract fname object.

 peopleentities entities = new peopleentities();  string querystr = "select value c peopleentity.person c c.id=" + personid;  iqueryable<entityobject> query = entities.createquery<entityobject>(querystr); 

i see createquery can both return iqueryable , objectresult. i'd know whats lightest way can extract fnames list query result.

i'm interpreting question "get first name of provided personid". assuming peopleentities contains dbset<person> person following:

public string getfirstnameforperon(string personid) {     peopleentities entities = new peopleentities(); // new ef context      return entities         .person // person entities         .where(w => w.id == personid) // id = personid         .firstordefault(); // take first available         .fname; // fname property }