How to sum generic numbers in C#? [duplicate]

Answer 1

In addition to using LINQ, if you're on .NET 4 this is possible using dynamic:

static T Add(T x, T y) 
{
    dynamic dx = x, dy = y;
    return dx + dy;
}

In your code sample this turns into:

public class NumberContainer where T: struct
{
    public T ValueA { get; private set; }
    public T ValueB { get; private set; }
    public T Total { get { return ((dynamic)ValueA) + ((dynamic)ValueB); } }
}

This approach doesn't ensure safety though. If T is some random struct that doesn't support + you'll end up with an exception (I think).