CODEWITHSUNDEEP
c#
O. San
O. San

Reputation: 1177

Rand a value different than

I have an enum:

public enum PrivilegedAccounts
{
    User = 1,
    Service = 16,
    Admin = 64,
    Other = 1040,
    Executive = 2048
}

and I wish to rand a value different than user. I know there's this rand (not sure it's true):

foo = (PrivilegedAccounts) (rand());

but how do I make it to rand any value except for "user"?

Thank you,

Upvotes: 1

Views: 87

Answers (4)

Sino
Sino

Reputation: 390

1- First counting the number of Enum

2- Make random number between the counts

3- create list of Enum

4- return the index of Enum

 Random rnd = new Random();
 var myEnumMemberCount = Enum.GetNames(typeof(PrivilegedAccounts)).Length; // Step1
 int count = rnd.Next(1, myEnumMemberCount); // creates a number between 1 and PrivilegedAccounts count //Step2 User is ignored
 Array eVals = Enum.GetValues(typeof(PrivilegedAccounts)); //Step3
 PrivilegedAccounts foo = (PrivilegedAccounts)eVals.GetValue(count); //Step4

Upvotes: 0

Naren
Naren

Reputation: 86

I hope this is what you are looking for.

public enum PrivilegedAccounts
{
    User = 1,
    Service = 16,
    Admin = 64,
    Other = 1040,
    Executive = 2048
}

 var values = Enum.GetValues(typeof(PrivilegedAccounts));
 SomeEnum randomValue = (PrivilegedAccounts)values[Random.Range(1, values.Length)]; //Start from 1 instead of 0 to avoid User

Upvotes: 3

digEmAll
digEmAll

Reputation: 57210

You can create a method :

static PrivilegedAccounts GetRandPrivAccountExcluding(
                                PrivilegedAccounts excludedValue, Random rand)
{
    var privAccounts = Enum.GetValues(typeof(PrivilegedAccounts))
                            .OfType<PrivilegedAccounts>()
                            .Where(x => x != excludedValue)
                            .ToList();
    return privAccounts[rand.Next(privAccounts.Count)];
}

Example usage :

static void Main(string[] args)
{
    Random rand = new Random();
    var randPriviledge = GetRandPrivAccountExcluding(PrivilegedAccounts.User, rand);
}

Upvotes: 0

Lemjur
Lemjur

Reputation: 338

Try something like this :

Random random = new Random();
int range_min = 1;
int range_max = 3;
int randomNumber;
do
{
    randomNumber = random.Next(range_min, range_max);    
} while (randomNumber == (Int32)PrivilegedAccounts.User);

Upvotes: 0

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