public static string CallerTypeToString(CallerType callerType)
{
switch (callerType)
{
case CallerType.Any:
return "A";
case CallerType.Employee:
return "E";
case CallerType.Client:
return "C";
case CallerType.Operator:
return "O";
default:
throw new ArgumentOutOfRangeException("callerType");
}
}