How to generate the more than 10 random alphanumeric characters with 8digit

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C#

ASP.NET

How to generate the more than 10 random alphanumeric characters with 8digit ?

Posted 12-May-15 21:59pm

venkatesh@India

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Herman<T>.Instance 13-May-15 4:22am

What have you tried?

Kornfeld Eliyahu Peter 13-May-15 4:30am

Please clarify...
You are talking about alphanumeric, which can contain letters and numbers, but you are also talking about digits, that belongs to numeric only...
So what do you want?! A random string or a random number?

venkatesh@India 13-May-15 8:12am

A random string

Tomas Takac 13-May-15 6:28am

What's your requirement? Give some examples of how should the generated string look like.

venkatesh@India 13-May-15 8:14am

My requirement is when user enter the value in textbox like "10" after click the submit button generate the 10 random string.

3 solutions

Solution 2

You can try:

var chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
var random = new Random();
var result = new string(
Enumerable.Repeat(chars, 10)
.Select(s => s[random.Next(s.Length)])
.ToArray());

Posted 12-May-15 22:41pm

LNogueira

Comments

Kornfeld Eliyahu Peter 13-May-15 8:19am

It is not too nice to copy-paste answers from others!
http://stackoverflow.com/questions/1344221/how-can-i-generate-random-alphanumeric-strings-in-c

venkatesh@India 13-May-15 8:24am

I had already saw the article.Its working fine for 1 ramdom string generation but more than one not working .

Solution 5

There is a nice article here about random strings...
C# Random String Generator[^]
A solution I used once is calling Path.GetRandomFileName[^] method, which returns a random sting, that can be used as file name (in 8.3 format)...

Posted 13-May-15 2:23am

Kornfeld Eliyahu Peter

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venkatesh@India · Accepted Answer · 2015-05-13T19:10:00

i also try other way,

for (int i = 0; i<5; i++)
{
var random=new Random();
int[] ds = Enumerable.Range(0, a).Select(s => random.Next(00000000, 99995264)).ToArray();

ListBox1.DataSource = ds;
ListBox1.DataBind();
}
its generate the 5 random number .how to so shown the generated value in gridview.