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.
View 5 RepliesI have an ID field where I need to insert unique ID's
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 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.
View 3 RepliesI know there is a class called Random but how do I generate random numbers manually? without using Random class.
View 6 RepliesI 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'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]...
I have a form and I want each form to have a unique number when it is filled out so it will go into the database. How can I set this up so when the page loads in the label it will say 1 then the second time it loads it will say 2?
View 1 RepliesFrom 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
how to pull a RANDOM item from the database when using LINQ. There seems to be a couple of differnet ways to handle this. What I need to do though is pull a RANDOM item from the database that the user has not seen before.
The data I am pulling from the database is very small. Is there any way I can just hit the database once for 1000 records and then randomly scroll through those?
Should I put a cookie on the users system recording the IDs of which items they have seen, pull a random record, check to see if it is seen and if so, pull from the database again? That seems like performance issues just waiting to happen.
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).
is it possible to make an online form generate a random reference number unique to that form?
I'm using C# and .net 3.5
i want to generate random URL for the users who want to download my file which is located in my server (http://servername/book/book.pdf) after he bought from us. and that URL should expire after few days lets say (1 week) .
View 2 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.
generating random numbers in texbox and then submit to database. code should check if the generated number already exist in database before submiting to database.
View 1 RepliesI currently designed a school result portal. If the students want to view their result, they input their student school number in a text box to search out their result. But this is not secured because anybody can look up any students result if you have the number which is even written on their school uniform for identification.
I have being trying to secure this result by trying to generate or code special numbers that the students will input with their school number. The special numbers will be random numbers and may be from 10 and above, it might even contain letters. How do
I code this. I believe this is the best asp.net forum. I want the students to be inputing this special unique numbers and their student numbers so that there result will be avaliable to them.
how to start/formulate codes on this.I want that in every form load, textbox1 will generate autonumber and random number for textbox 2.
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.
How to create sql server table with unique random identity between 45365 - 5782155129452 ?
View 5 RepliesI want to know which code or technique is used to write the code written below in url which is "3rhgf6v4zbos16x" what is this and how it can be generated in asp.net?
[URL]...
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.
View 11 RepliesI would like to create a confirmation number using both letters and digits just like when you book your flights, the confirmation number looks like '9Z3RG6R'
View 7 RepliesI'm trying to implement a code that will generate a fix lenth alphanumeric code; number from 0...9 and capital letters A...Z. I want the code to be formated as this: XXX-XXX (where X representes a random character between 0...9 and A...Z). It doesn't matter if the letters and/or the numbers repete. But it will be great if the don't. I'm using VB.Net. How can I do this?
View 4 RepliesI need to generate a random code using c#.
This code must be fulfill below condition.....
create approximately 8 random characters containing ( A to Z , and 1 to 0 only) .