Compares this instance to a specified Guid object and returns an indication of their relative values.
A signed number indicating the relative values of this instance and value.
A negative integer This instance is less than value.
Zero This instance is equal to value.
A positive integer This instance is greater than value.
This method implements the IComparable`1 interface and performs slightly better than the Guid.CompareTo(object) method because it does not have to convert the value parameter to an object.