List files in a folder c#

Question

1.00/5 (1 vote)

See more:

Hi

I have a folder with some files in it. The file names have a prefix (ID). Now i want to list all files with the same prefix in a web form.. Say i have an ID (22) and i want to retrieve all files with prefix 22 and list them. The Prefix is added when the files are uploaded... Can anyone help me out

Posted 12-Jul-12 0:05am

Arjun Menon U.K

Updated 12-Jul-12 0:13am

v2

Add a Solution

Comments

Vani Kulkarni 12-Jul-12 6:11am

I am assuming that listing means you want to display on a win form or webform? Let me know if my understanding is wrong.

Arjun Menon U.K 12-Jul-12 6:13am

web form

3 solutions

Solution 1

Hi,

Here are some examples...

http://www.dotnetperls.com/directory-getfiles[^]

http://www.csharp-examples.net/get-files-from-directory/[^]

http://stackoverflow.com/questions/3710617/list-recursively-all-files-and-folders-under-the-giving-path[^]

Regards
Sebastian

Posted 12-Jul-12 0:20am

Sebastian T Xavier

Solution 5

C#

string searchPattern="22*";
public static string[] GetFiles(string path, string searchPattern, SearchOption searchOption)
{ 
        return System.IO.Directory.GetFiles(path, searchPattern, searchOption);
}

Posted 12-Jul-12 3:02am

bbirajdar

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

StianSandberg · Accepted Answer · 2012-07-12T00:21:00

Solution 3

C#

var d = new DirectoryInfo("PATH-TO-YOUR-FILES");
var files = d.GetFiles().Where(f => f.Name.StartsWith("11"));

You can add more filter if you want. By adding

.OrderByDescending(f=>f.CreationTime)

I will get newest files on top. And if I don't want all files I can simple add

.Take(10)

to get the 10 newest files and so on...

Posted 12-Jul-12 0:21am

StianSandberg

Updated 12-Jul-12 0:45am

v2

Comments

Vani Kulkarni 12-Jul-12 6:25am

Correct! My 5!

Shemeer NS 12-Jul-12 6:29am

5'ed

Rahul Rajat Singh 12-Jul-12 6:30am

Thats perfect. +5.

Arjun Menon U.K 12-Jul-12 6:35am

Its not an ASPX page.. Using C# + HTML

StianSandberg 12-Jul-12 6:38am

files will contain all files matching the query (in my example StartsWith("11")) You can then use files (an array of FileInfo) as a datasource for a repeater or datagrid or return data as json, xml or anything else basically.

Arjun Menon U.K 12-Jul-12 7:25am

That GetFiles().Where is where i am having problem.. showing error....

By the way i got the expected result this way .. don't know if it is the best way

string[] ticketFiles = Directory.GetFiles(HttpContext.Current.Server.MapPath("Ticket"));
foreach (string files in ticketFiles)
{
string fileName = Path.GetFileName(files);
string ticketDetailID = fileName.Substring(0, fileName.IndexOf("_"));
if (ticketDetailID == dsTicketDetails.Tables[0].Rows[0]["TicketDetailID"].ToString())
{ -- Display File name here ---}

bbirajdar 13-Jul-12 7:40am

Use the solution 5 given below