A (very) minor issue:

public override bool Equals(object obj) {
   if (!(obj is AutoOperators)) return false;
   return this == (AutoOperators) obj;
}

Will cause “Code Analysis” (FxCop ??) to issue a
“Warning 1 CA1800 : Microsoft.Performance : ‘obj’, a parameter, is cast to type ‘AutoOperators’ multiple times in method ‘AutoOperators.Equals(object)’. Cache the result of the ‘as’ operator or direct cast in order to eliminate the redundant castclass instruction. ..\AutoOperators.cs 54″

Changing it to:

public override bool Equals(object obj) {
   AutoOperators other = obj as AutoOperators;
   return (other != null) ? (this == other) : false;
}

makes the “Code Analysis” program happy. The same issue arises in the “CompareTo” override.

The if/else structure does work better if the comparison requires more than a simple expression while the conditional operator is very concise if a simple expression will do the job.

Thanks,
Bob R