I am trying to generate a random number from within a class and am getting "Type 'Random' is not defined" - does anyone have any ideas. Here is the code
**note the code works on an aspx.vb page, but not from within my class
Dim RandomClass As New Random()
Dim RandomNumber As Integer
RandomNumber = RandomClass.Next(3)
I know there is a class called Random but how do I generate random numbers manually? without using Random class.
View 6 RepliesI want to generate a unique random number everytime a user submits a form. As the form is submited the data of the form should be placed in a database and a unique random number should be generated so that the user can later use this unique random number to reterieve his details from the database that refer to his unique random id. The unique random number should be atleast 9 digits long.
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the ID should be like -
S- (YY)(MM)9999. where, (YY) is year, (MM) is month and 9999(is a four digit random number)
for example - S-11030001
i'm using Random function to generate random numbers and store them into arrayTell me how to do This is how an array is declared
[Code]...
From what i know Random() is initialize to the current time. If two connections hit during the same second i should get the same two random numbers? With a large site that can be likely. Locking is bad so how should i solve it? note: the number is used for the session id.
-edit- i am stuck using a long. It feels wrong to shorten a 128bit GUID
I am trying to create a Question Bank application for one of our clients. What is the main challenge I am facing is a typical demand from the client. What they want is : Whenever users open this site a set of random numbers(range say 1 to 20) should be generated and questions with the QuestionID(column in a table in Database) according to the numbers would be displayed in the page. I have done it to some extent but, still not satisfied with it.
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
int[] n = new int[10];
int rn;
bool Check = true;
int[] n1 = new int[10];
Random rand = new Random();
n1[0] = rand.Next(1, 21);
for (int i = 1; i < 10; i++)
{
rn = rand.Next(1, 21);
for (int j = 0; j < n1.Length; j++)
{
if (n1[j] == rn)
{
Check = false;
break;
}
else
continue;
}
if (Check == true)
n1[i] = rn;
}
for(int i=0;i<10;i++)
Response.Write(n1[i] + " ");
}
}
Here are some O/Ps : 11 13 14 4 16 0 0 0 0 0 (1st load)
5 9 8 1 0 0 0 0 0 0 (after refreshing the page)
16 10 20 6 8 17 11 7 0 0 (after refreshing again)
I want that, all these digits in each refresh should be unique(which is comming) but all set should 10 digits(this is not happening).
Using Stored Procedure (SQL) Am looking to generate a 10 digit alphanumeric number. How do i proceed.
Example:
132AXD1LKM
AD157LKJ1A
I want to generate a 16 digit random account number that should be unique in database for every new user of my website. kindly guide me how can i generate a 16 digit unique number.obviouly i understand that i would have to check that number in my database table for uniqueness and if that generated number already exist then i would have to generate it again.
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This code must be fulfill below condition.....
create approximately 8 random characters containing ( A to Z , and 1 to 0 only) .
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I'm using C# and .net 3.5
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ex: 750000
second it shoul dbe 750001
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View 3 RepliesRecently, I am working on the website where I am generating random number and storing it in database as the primary key. So, this key would be foreign key for many table, now how would I generate the random number and check if random number does not have duplication? Is there any function to check if number is not duplicate?
View 1 Repliesa control or some code I can use to generate a random testimonial from a selection of testimonials.
I want a random testimonial to appear each time a page is loaded.
This site does not currently use a database so a solution that uses a text file or spreadsheet is preferred.
I want to generate a unique random number everytime a user submits a form. As the form is submited the data of the form should be placed in a database and a unique random number should be generated so that the user can later use this unique random number to reterieve his details from the database that refer to his unique random id. The unique random number should be atleast 9 digits long.
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View 2 RepliesI have a feedback form in my website. After submitting the feedback (using Submit button), form's Reference number should generate and showed to the user (with successful message) in a "Pop up" as below:
i.e, your feedback is submitted successfully. Your refrence number is 'xyz10'
This refrence number should be unique for every user who fills the feedback form.