C# - Convert one Enum to an other

Question

I have 2 enums

public enum PersonTitle{
   Mr=0,Ms=1,Mrs=2
}

public enum SystemPersonTitles{
   Mr=0,Ms=1,Mrs=2
}

How do I convert one to an other (no Switch cases or If Statements).

public void SystemPersonTitles TellWhatYouAre(PersonTitle personTitle){
//here
}
//usage
SystemPersonTitles systemPersonTitles = TellWhatYouAre(PersonTitle.Ms);

Answer 1

SystemPersonTitles newValue = (SystemPersonTitles)(int)PersonTitle.Mr;

Out of the head, I cannot test this as I'm currently on my OSX.

Answer 2

Enums are just glorified integers, so you can simply cast from one to another:

public SystemPersonTitles TellWhatYouAre(PersonTitle personTitle)
{
    return (SystemPersonTitles)personTitle;
}

Note that this conversion is based on the int values, not the names.