This can be useful if you are wanting to generate a unique code or id for use in a .NET application, or anything that supports C#. For example, this could be used as an security code for authentication via links in an email. The security code would be unique, and not be included in an email to more than one person. The code can then be used to determine who clicked a link in an email by finding the user who corresponds to the unique code.
Another use may be for general logging/reporting of links clicked in an email to know who clicked a link when other tracking mechanisms are not available. As the email address would need to be know to be able to send an email to the user, it is possible to have a unique code associated with every email that is distributed.
C#:
public String generateRandomString(int length) { //Initiate objects & vars Random random = new Random(); String randomString = ""; int randNumber; //Loop ‘length’ times to generate a random number or character for (int i = 0; i < length; i++) { if (random.Next(1, 3) == 1) randNumber = random.Next(97, 123); //char {a-z} else randNumber = random.Next(48, 58); //int {0-9} //append random char or digit to random string randomString = randomString + (char)randNumber; } //return the random string return randomString;
}
Thanks for the code. I ran into trouble getting random strings They seemed to repeat after a while. I added a line of code that uses a new Guid to create the seed:
ReplyDeletebyte[] seed = Guid.NewGuid().ToByteArray();
Random random = new Random(BitConverter.ToInt32(seed,0));
I like to think this gives me a more random number.
The System.IO.Path has a static method(GetRandomFileName) which creates a random file name with 12 length.you can wrap this method in a custom class to create a random string with specific length
ReplyDeletehappy .net coding
Mehdi,Kiani
this help me lot thnx for post...
ReplyDeleteHello
ReplyDeleteI have a scenario that I need to generate a random email Id
for the End User this random email will be linked to the Original Email of the User,
now whenever anyone sends Email to the new random Email Id
it automatically gets delivered to the Original Id as well.
Thanks & Regards,