// listVariable = The list of objects/vars etc.
// 'delegate' command - aka callback
// a / b - the values to compare
// N.B. possible return values are 1, 0 and -1. The .compare method 
// can be used on multiple var types to ease sorting, e.g. int, float, string.
listVariable.Sort(delegate(ObjectType a, ObjectType b)
    {
        // E.g.
        return string.Compare(a.param, b.param);
    });