Auto increment alphanumeric id in MVC view

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i want to auto increment Request No in my application with Alphanumeric ID using mvc view

do anyone have any code or hint for it..

thanks in advance

What I have tried:

i tried to find code or logic from some of the well known sites, but i did not found any matching code...

Posted 5-Jan-18 19:25pm

Dheerajs975

Updated 5-Jan-18 20:08pm

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Comments

Karthik_Mahalingam 6-Jan-18 1:32am

like
REQ001
REQ002
.
.
REQ00N ?

Dheerajs975 6-Jan-18 1:34am

yes exactly.. in mvc4

Karthik_Mahalingam 6-Jan-18 1:38am

check this Auto generate auto incremented unique alphanumeric [^]
or handle it in the insert SP

Dheerajs975 6-Jan-18 1:43am

i got one code, will you please tell me the correction if i ask you in that?

Karthik_Mahalingam 6-Jan-18 1:50am

ok post it

Dheerajs975 6-Jan-18 1:52am

public ActionResult AutoPRNo(string lastPRNo)
{
string PR = "PR";
string letter = PR.Substring(0, 2);
int len = PR.Length - 1;
int number = int.Parse(PR.Substring(2));
number++;
if (number >= Math.Pow(10, len)) number = 1;
ViewBag.request_number = String.Format("{0}{1:D" +
len.ToString() + "}", letter, number);
return View();
}

//is this code is correct for autoincrement of PR001,PROO2 and so on?

Karthik_Mahalingam 6-Jan-18 2:09am

check if the solution helps?

1 solution

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Karthik_Mahalingam · Answer 1 · 2018-01-05T20:08:00

Solution 2

try

static void Main()
        {

            string a = GetAutoNumber("1"); // PR001
            string a1 = GetAutoNumber("11");// PR011
            string a2 = GetAutoNumber("111");// PR111
            string a3 = GetAutoNumber("1111");// PR1111

        }
        public static string GetAutoNumber(string lastPRNo)
        {
            string prefix = "PR";
            string number = lastPRNo;
            if (lastPRNo.Length < 3)
            {
                number = "000" + lastPRNo;
                number = number.Substring(number.Length - 3, 3);
            }

            return prefix + number;
        }

Posted 5-Jan-18 20:08pm

Karthik_Mahalingam

Comments

Dheerajs975 6-Jan-18 2:16am

will it woek in MVC?
it is ASP.NET code ryt?

Dheerajs975 6-Jan-18 2:18am

i want to code same as i posted in comments..

Karthik_Mahalingam 6-Jan-18 2:22am

 public ActionResult AutoPRNo(string lastPRNo)
        {
            string prefix = "PR";
            string number = lastPRNo;
            if (lastPRNo.Length < 3)
            {
                number = "000" + lastPRNo;
                number = number.Substring(number.Length - 3, 3);
            }
            string final = prefix + number;
            ViewBag.request_number = final;
            return View();
        }