Generic Sort Comparer.cs

using System.Collections.Generic;

public class SortComparer<T, R> : Comparer<T> where R : IComparable<R>
{
    public readonly Func<T, R> GetComparableProperty;
    private SortComparer(){}

    private SortComparer(Func<T, R> func)
    {
        GetComparableProperty = func;
    }

    public static IComparer<T> Create(Func<T, R> func)
    {
        return new SortComparer<T, R>(func);
    }

    public override int Compare(T x, T y)
    {
        return GetComparableProperty(x).CompareTo(GetComparableProperty(y));
    }
}