Changing property type in class that implements interface with object type property

Question

I\'m writing a TemplateEngine that will allow me to use my own markup in text based files. I\'m wanting to add controls as plugins as the application matures. Currently i\'v

Answer 1

you could also use generics:

interface IControl 
{
    string ID{get;set;}
    T Value{get;set;}
}

class SomeControl : IControl
{
    public string ID{get;set}
    public string Value{get;set;}
}

class SomeOtherControl : IControl
{
    public string ID{get;set}
    public int Value{get;set;}
}

I like this better than the explicit interface idea if it's just one return value that needs to change. However, I think if you had several properties that each would return a different type, you wouldn't want to have IControl. At least, I wouldn't. In that case I would recommend the explicit interfaces.

Of course, this wouldn't work if you didn't have access to the source of IControl.

Edit: had a typo. Fixed