.net Mvc C# Random Generating Same Number?
Jan 20, 2011how can i generate different number,it is generating the same number
Random rand = new Random(100000);
rand.Next();
how can i generate different number,it is generating the same number
Random rand = new Random(100000);
rand.Next();
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 Repliesis 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 need to generate a random number which starts fro 750000 and should increment one by one for generating other number.
ex: 750000
second it shoul dbe 750001
I want to generate simple random number in webpage ... like remain one button,when I clicked show a random number.
View 6 RepliesI need to generate random number in oracle.i need to get always 3 digit random number(100 to 999)
View 5 RepliesRandom rand = new Random((int)DateTime.Now.Ticks);
int numIterations = 0;
numIterations = rand.Next(1, 50);
Response.Write(numIterations.ToString());
Response.Write(' ');
numIterations = rand.Next(1, 50);
Response.Write(numIterations.ToString());
Response.Write(' ');
numIterations = rand.Next(1, 100);
Response.Write(numIterations.ToString());
Response.Write(' ');
numIterations = rand.Next(50, 100);
Response.Write(numIterations.ToString());
[Code]....
This is what i have so far. first 2 number gives 1-50, then 1-100, then last two give 50-100
now i need to make the first 2 numbers give even or odd numbers. how can i do this?
I have an ASP.NET application that relies on the Random class to generate a pseudo-random string. It uses the following code (this is part of a larger piece of sample code provided by Google for apps SSO):
public static class SamlUtility
{
private static Random random = new Random();
private static char[] charMapping = { 'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o', 'p' };
public static string CreateId()
{
byte[] bytes = new byte[20]; // 160 bits
[Code]...
This normally works very well, but from time to time it starts generating a string of 'a'. From what I can tell from debugging, Random simply stops returning random numbers and instead fills bytes with the same value over and over. I've patched this by using a GUID instead, but I'm curious what happened in the original code. I'm assuming some form of entropy exhaustion, but I can't find any reference in the docs. Also, each time this has happened, performing iisreset restored the correct behavior.
I've web page with 1 textbox.
If I open that page I want to display a random number between 0-9 in that text box, how?
i will set a random number for uploading files. how could i do that?
is it possible to set a random name with 20-50 characters?
Not sure if I'm approaching this correctly but this is what I've got and what I'm trying to do
I have a table with 10 Labels in it (Labels Id A1 thru A10)
I'm trying to have each label assigned a random number using 0-9
Need to have each labels number value different from the other
Code Below:
Randomize()
A1.Text = Int(Rnd() * 10)
A2.Text = Int(Rnd() * 10)
A3.Text = Int(Rnd() * 10)
A4.Text = Int(Rnd() * 10)
A5.Text = Int(Rnd() * 10)
A6.Text = Int(Rnd() * 10)
A7.Text = Int(Rnd() * 10)
A8.Text = Int(Rnd() * 10)
A9.Text = Int(Rnd() * 10)
A10.Text = Int(Rnd() * 10)
Recently, 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 Repliesi have an application where users are allowed to fill in a form, once saved the form is given a unqiue # in this format: YYYY/MM/DD/### where ### is a 3 digit number, starts at 001, next one would be 002, etc.. the the YYYY/MM/DD is the date the form was saved, so if we had 2 saved today we would get these two:
2011/01/10/001
2011/01/10/002
I just wanted to know how to be sure that those numbers are always unqiue, if two people submit a form at the same time to make sure they are not given the same number? As we had that happen recently now that the application is being used a lot more, two people saved about the same time and once someone clicked save twice while the first save was happening and 2 of the same IDs were generated. Just want to make sure no matter what a unqiue one is always generated. I 'm able to calculate the ###, just wanted to know if there is a way to make sure it's not being used by a process saving right now.
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 RepliesHow can I generate a 7-digit random number and special character string in a textbox on a button click event, in VB.Net?
View 2 Repliesgenerating 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 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 Replieshow 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.
I want to generate serial number in gridview but the serial number should be equal to the count of records for a particular column(in my case No. of Villages).
I know how to generate serial number but i am unable to generate number of rows equal to the number of records of my datatable column(Village_Name---say for example 45 rows--- any no. of rows)
My application I am using pagination.Using pagination i bind the records with listview control.
I generate the buttons dynamically according to the number of pages which is calculated from number of records returned from dataSource.when i click on a dynamically generated button its corresponding event handlers methods should get evaluated.Since asp.net page is stateless I can't keep the state of that dynamic controls after any postback.
Just Now I have seen the Article "How to get the Id of Control that cause postback in asp.net?". I got some idea from that article. Any example for "Creating link buttons dynamically and handling its corresponding event handler in Asp.Net".
I create a table as picture below :
when I insert any character to column Name then A new string random will auto insert into column Random (picture below) I had used Trigger but It was error !
I want to column Random use to code :
DECLARE @myid uniqueidentifier
SET @myid = NEWID()
insert into table_1 values(@myid, substring(CONVERT(varchar(255), @myid), 1, 5))
but It must auto like column Number (column Number is Identity)
I am using the asp.net and framework 2.0 with Ajax enable web.i have a text box and when user will enter "a" or number in this will search the name started from "a" character or number if he or she enter the number basically we can say live-search.
Employee search: Textbox.In this text box she/he will enter the first character of name or first number of employeeno and according to the a character name will search in list.