Question

How can I initialize a list containing generic objects whose types can be different?

For example, I have the following:

this.Wheres = new List<Where<>>(); 

As you know, <> is not valid syntax. However, sometimes the type passed to Where will be a string and sometimes it will be DateTime, etc. I tried using object as the initialized type, but that doesn’t work either.

Answer 1

Well, you haven’t really given enough context (what’s SqlWhere?) but normally you’d use a type parameter:

public class Foo<T> {    private IList<T> wheres;     public Foo()    {        wheres = new List<T>();    } } 

If you want a single collection to contain multiple unrelated types of values, however, you will have to use List<object>