Using “where”: Cannot convert lambda expression to type 'bool'

Question

I have entity framework code as shown below.I am getting following error in where condition.

Cannot convert lambda expression to type \'bool\' because

Answer 1

In asp mvc Razor while i tried:

@if (modelItem => item.Id == 1)
 {

<span class="badge progressbar-success">Approved</span> 

 }

Cannot convert lambda expression to type 'bool' because it is not a delegate type

Solution:

@if (Model.FirstOrDefault().Id == 1)
{

<span class="badge progress-bar-success">Approved</span>

}

Hope helps someone.

Answer 2

The => syntax is used in the method chain notation. You probably also want to use the clubName variable instead of "club1".

var query = db.Clubs.Where (p => p.ClubName == clubName);

which does the same as this (which is the correct syntax for your query):

var query = from o in db.Clubs
            where o.ClubName == clubName
            select o;

Answer 3

Instead of where (p => p.ClubName == "club1") use:

var query = from o in db.Clubs
            where  o.ClubName == "club1"
            select o;

May be you are confused with method chaining where it would be:

var query = db.Clubs.Where(p => p.ClubName == "club1");

Answer 4

        var query = from o in db.Clubs
                    where o.ClubName == "club1"
                    select o;

Answer 5

var query = from o in db.Clubs
            where o.ClubName == "club1"
            select o;