Question

I am trying to use entity to update many records up to 30 if the conditions inside the statement match but i am having an issue finding the correct method to use at the end what I have is this

public ActionResult Edit(profile profile)
{
  //change all records where getid== x.registrationID
  var getprofile =
    (from x in db.Articles where getid == x.RegistrationID select x).Any();

  getprofile.firstname = profile.firstname;
  getprofile.lastname = profile.lastname;
}

The error i get is on getprofile.firstname and getprofile.lastname saying the bool does not contain a definition for firstname or lastname. If i put in FirstorDefault() everything works fine but of course it only changes the 1st record…

How can I change many records?

Answer 1

You can use ToList() to get a collection of Articles:

List<Article> getprofiles = ( from x in db.Articles ... ).ToList();

foreach( Article getprofile in getprofiles )
{
  getprofile.firstname = profile.firstname;
  getprofile.lastname = profile.lastname;
}

db.SaveChanges();

This queries the database, gets the matching Article rows and puts them in a collection – a List<Article>

You can then modify the objects in the collection and finally call db.SaveChanges() to update the database.