c# linq select one property from object list code example

Example 1: c# linq select from object list

// this will return the first correct answer,
// or throw an exception if there are no correct answers
var correct = answers.First(a => a.Correct); 

// this will return the first correct answer, 
// or null if there are no correct answers
var correct = answers.FirstOrDefault(a => a.Correct); 

// this will return a list containing all answers which are correct,
// or an empty list if there are no correct answers
var allCorrect = answers.Where(a => a.Correct).ToList();

Example 2: get one property from list of objects linq

var result = from x in Contacts
             where x.ContactTypeID == 2 && x.OrganizationName == "COMPANY XYZ"
             select x.ContactID;