Reading text file inside the Folder in c#

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I have 5 different text file inside the Main Folder example

c:\Main

inside Main, i have 5 file (test1.txt, test2.txt. test3.txt, test4.txt and test5.txt)

How to read the latest file?

Posted 7-Apr-14 23:54pm

KRI19

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Comments

Thomas Daniels 8-Apr-14 5:58am

Is the file name always test5.txt or can the file also have another name?

KRI19 8-Apr-14 5:59am

the file can have another name as well.
Thanks

4 solutions

Solution 1

Add check on Createdon by getting time like below:

C#

static void Main(string[] args)
       {
           DateTime fileCreatedDate = File.GetCreationTime(@"C:\Example\MyTest.txt");
           Console.WriteLine("file created: " + fileCreatedDate);
       }

Posted 8-Apr-14 0:02am

Er. Puneet Goel

Solution 3

Hi,
you can use

System.IO.File.GetCreationTime()

This methods gives the creation date and time of your file.
you can also specify an order or a creation date in your file name.

Posted 8-Apr-14 0:05am

ALI_TN

Solution 4

You need to list all files in a directory and check which was lastly writen.

Have a look here:
How to: Enumerate Directories and Files[^]
FileSystemInfo.LastWriteTime Property[^]
How to: Read From a Text File (C# Programming Guide)[^]

Posted 8-Apr-14 0:06am

Maciej Los

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Emre Ataseven · Accepted Answer · 2014-04-08T11:58:00

Solution 5

C#

public static string ReadLastFile(string dirPath)
{
    if (!Directory.Exists(dirPath))
      throw new FileNotFoundException();

    var lastFilePath = Directory.GetFiles(dirPath).OrderBy(f => new FileInfo(f).CreationTime).Last();
    return File.ReadAllText(lastFilePath);
}

You need to handle null states.

Posted 8-Apr-14 11:58am

Emre Ataseven

Updated 8-Apr-14 11:59am

v2

Comments

KRI19 9-Apr-14 4:13am

Thanks! worked fine