Question

I have some different objects that all of them have a integer field called Place. Is there a way to sort out this list without knowing what is the actual object? I mean just accessing the Place field and sort the list based on this number. possibly using linq or something?

some example objects:

public class Car
{
    public int Place;
    //Other related fields
}

public class Human
{
    public int Place;
    //Other related fields
}

//Somwhere in program
List<object> GameObjects;

Answer 1

You should derive your classes from a base class.

public class Base
{
    public int Place;
}

public class Car : Base
{
    // other properties
}

public class Human : Base
{
    // other properties
}

Then you can create a list of your base type, add humans
and cars. After that you can use the Linq Sort or OrderBy method.

List<Base> list = new List<Base>();
list.Add(new Human { Place = 2 });
list.Add(new Car { Place = 1 });

var sortedList = list.Sort(x => x.Place);

More Information

• The C# Station Tutorial – Lesson 8: Class Inheritance
• MSDN – Queryable.OrderBy
• MSDN – List.Sort Method