Override IEnumerable Where

Question

I\'ve written a class that implements IEnumerable :

public class MyEnumerable : IEnumerable
{ 
    IEnumerator IEnumerable.GetEnumerator()
    {
         


        

Answer 1

Sure - just add a Where method to MyEnumerable. The Linq Where method is an extension method, so it's not technically an override. you're "hiding" the linq method.

public class MyEnumerable : IEnumerable
{ 
    IEnumerator IEnumerable.GetEnumerator()
    {
        return this.GetEnumerator();
    }
    public IEnumerator GetEnumerator()
    {
        //Enumerate
    }

    public MyEnumerable Where()
    {
       // implement `Where`
    }
}

There are some caveats, though:

• Your Where method will only be called if the declared type is MyEnumerable - it will not be called on variables of type IEnumerable (or any collection that implements it, like List
• There are several overloads of Where that will need to be implemented as well if you want to maintain consistently with Linq.