Add 'set' to properties of interface in C#

Question

I am looking to \'extending\' an interface by providing set accessors to properties in that interface. The interface looks something like this:

interface IUser
         


        

Answer 1

You could use an abstract class:

interface IUser
{
    string UserName
    {
        get;
    }
}

abstract class MutableUser : IUser
{
    public virtual string UserName
    {
        get;
        set;
    }
}

Another possibility is to have this:

interface IUser
{
    string UserName
    {
        get;
    }
}

interface IMutableUser
{
    string UserName
    {
        get;
        set;
    }
}

class User : IUser, IMutableUser
{
    public string UserName { get; set; }
}