Question

Suppose I have two objects:

class Apple
{
     public int ID {get;set;}
     public string Name {get;set;}
     public string Color {get;set;}
}

class UsedApple
{
     public int ID {get;set;}
     public int AppleID {get;set;}
}

How can I select all used Apples?

Answer 1

Use Join method (same as inner join in SQL):

IEnumerable<Apple> query = from ua in usedApples
                           join a in apples on ua.AppleID equals a.ID
                           select a;