how can i get this number

Question

3.00/5 (2 votes)

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Hi All,

Here is my url:
http://localhost:4127/Project/articles/test-article-2766.aspx[^]

from this url how can i get the number 2766

please any one can help me.

Thanks in advance.

please see the output. i try every solution but i can't get this.
i give the output for every solution.
this code is worked but every time display same number,it does not change along with url

C#

string pageUrl = HttpContext.Current.Request.Url.AbsoluteUri;
if(!string.IsNullOrEmpty(pageUrl))
{
string[] arr = pageUrl.Split('-');
string ur_number = (arr[arr.Length -1]).replace(".aspx"," ");
}

I think this problem is occured because i am using url rewriter for that it change the url but those codes
only get default url from config file. Plaese any one help me

i have write in config file

XML

<rewriter>
    <rewrite url="~/articles/(.+)-(.+).aspx" to="../articles/details.aspx?test-for-stream-5-2778"/>

  </rewriter>

plesae check this i think i am going something wrong in this url rewrite. i give this default url test-for-stream-5-2778 so every time request.url get this url only.

Posted 30-May-11 22:08pm

rahul dev123

Updated 31-May-11 0:46am

v6

Add a Solution

8 solutions

Solution 1

Hi,

Here's the code for your assignment.

C#

var url = @"http://localhost:4127/Project/articles/test-article-2766.aspx";
var split = url.Split('.');

if (split.Length > 0 && split[0].LastIndexOf('-') > -1) {
    var articleNo = split[0].Substring(split[0].LastIndexOf('-') + 1);
    Console.WriteLine(articleNo);
}

Good luck!

Posted 30-May-11 22:17pm

Pong D. Panda

Updated 31-May-11 0:38am

v2

Comments

rahul dev123 31-May-11 5:58am

Your code shown Error like this:
System.ArgumentOutOfRangeException: StartIndex cannot be less than zero

Pong D. Panda 31-May-11 6:39am

I updated my solution for further checking, take note that this code follows your format, having the article number in between the . of the aspx and the last '-' of your url.

Pong D. Panda 31-May-11 6:27am

Tell me, what's the url when that error was thrown?

Solution 2

string pageUrl = HttpContext.Current.Request.Url.AbsoluteUri;
if(!string.IsNullOrEmpty(pageUrl))
{
   string[] arr = pageUrl.Split('-');
   string ur_number = (arr[arr.Length -1]).replace(".aspx"," ");
}

Posted 30-May-11 22:18pm

Kiran Sonawane

Updated 31-May-11 15:26pm

v3

Comments

rahul dev123 31-May-11 5:51am

Your solution is work for get the value but one problem is every time it display the same value. it does not change along with url

Solution 4

Assuming your number length is only 4.

string URI = myURI.toString();
string result = URI.SubString(URI.Length-9,4)

The logic behind this 9 is simple (4 characters for aspx, 1 for the . and 4 for the number itself).

Posted 30-May-11 22:21pm

Abhinav S

Comments

rahul dev123 31-May-11 6:01am

SubString not supported

Solution 6

use this

C#

string [] a=System.IO.Path.GetFileName(Request.Path).Split('-');
       string [] b=a[2].Split('.');
       string val = b[0].ToString();

Posted 30-May-11 22:33pm

Ashishmau

Comments

rahul dev123 31-May-11 6:02am

your code shown error like this:
Index was outside the bounds of the array.

Solution 3

Use this code:

var url = @"http://localhost:4127/Project/articles/test-article-2766.aspx";
var split = url.Split('.');

if (split.Length > 0) {
   var articleNo = split[0].Substring(split[0].LastIndexOf('-'));
}

Posted 30-May-11 22:18pm

Ramalinga Koushik

Comments

rahul dev123 31-May-11 5:58am

Your code shown Error like this:
System.ArgumentOutOfRangeException: StartIndex cannot be less than zero.

Solution 9

string x = "http://localhost:4127/Project/articles/test-article-2766.aspx";
x = x.Replace("http://localhost:4127/Project/articles/test-article-2766.aspx", "2766");

lol

Posted 31-May-11 20:12pm

prot0col

Updated 31-May-11 20:46pm

v2

Solution 8

C#

Try below Code. This is generic and should wotk for any number in your url.

string url = "http://localhost:4127/Project/articles/test-article-2766.aspx";

       int dashPosition = url.LastIndexOf("-");
       int dotPosition = url.LastIndexOf(".");

       int totalCharactersOfNumber = dotPosition - dashPosition -1;


       string output = url.Substring(url.LastIndexOf("-")+1, totalCharactersOfNumber);

Posted 30-May-11 22:55pm

RaisKazi

Comments

rahul dev123 31-May-11 5:55am

Your code error like this:
System.ArgumentOutOfRangeException: Length cannot be less than zero.

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JustWorking · Accepted Answer · 2011-05-30T22:23:00

Solution 5

You need to use regular expression:

using System.Text.RegularExpressions;

Regex reg;
Match m;
string line = " http://localhost:4127/Project/articles/test-article-2766.aspx";
reg = new Regex(@"http://.*?/.*?/.*?/.*?(\d{4})");
m = reg.Match(line);
string str = m.Groups[1].ToString;

<edit>Error on Regex declaration, added the magical @ before the string

Posted 30-May-11 22:23pm

JustWorking

Updated 31-May-11 0:40am

v2

Comments

JustWorking 31-May-11 4:27am

In C# index start at 0 so replace m.Groups[0].ToString;
Remmeber to mark Accept Solution and 5 if it works for you:)

Sergey Alexandrovich Kryukov 31-May-11 4:45am

Most adequate use of Regex, a 5.
--SA

Kim Togo 31-May-11 5:52am

My 5 for the regex. But you can make it more simple.
Regex: (\d{4})\..*$

rahul dev123 31-May-11 6:06am

regex shown error like unrecognized escape sequence