Is it possible to use in statement for integer inside linq?-CodePudding

I need to look inside a collection if contains multiple elements. Can i use in statement?

Example:

public class Person
{
   public int Age { get; set; }
}
    
private void button1_Click(object sender, EventArgs e)
{
    var person = new List<Person>();
    person.Add(new Person { Age = 1 });
    person.Add(new Person { Age = 5 });
    person.Add(new Person { Age = 2 });
    person.Add(new Person { Age = 3 });

    var selectedPersons = person.Where(x => x.Age in (1, 3, 5));
}

CodePudding user response：

I assume the in is meant as you would use it in SQL-where. If you want all Age that contain 1, 2 or 3 you would write:

var selectedPersons = person.Where(x => new [] {1, 2, 3}.Contains(x.Age));

If you want to select all persons that have an Age between 1 and 3 than you would write:

var selectedPersons = person.Where (x => x.Age >= 1 && x.Age <= 3);