File Handling in C# Window Programming

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C#

C#4.0

How to find the lastly open file name through a directory by windows application in C#. ~~Its very urgent for me..~~

Posted 14-Sep-12 1:05am

Dharmendra-18

Updated 14-Sep-12 1:07am

Zoltán Zörgő

v2

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Malli_S 14-Sep-12 7:09am

What kind of 'Lastly opened file name' ? Because usually, applications maintain their MRUs. And Windows maintains application specific MRUs in registry.

3 solutions

Solution 1

What about this code:

C#

var directory = new DirectoryInfo("C:\\Temp");
var myFile = (from f in directory.GetFiles()
              orderby f.LastWriteTime descending
              select f).First();

MessageBox.Show(myFile.Name.ToString());

Posted 14-Sep-12 1:08am

JF2015

Comments

Dharmendra-18 14-Sep-12 7:12am

but this code is not working i have already use fileinfo , fliesysteminfo, fliesystemwatcher class

JF2015 14-Sep-12 7:14am

So, what do you mean with "not working"? It is working on my PC...

Dharmendra-18 14-Sep-12 7:31am

I mean i want to get file name which is recently open in a directory

JF2015 14-Sep-12 7:37am

The above code gives you the file that was last written to. You can also read which file was last accessed by using f.LastAccessTime or created by using f.CreationTime. In the file properties there is no "last opened".

Solution 2

As "opening" a file might occur for various reasons, you have several means depending on the operation: let's say read or write. And let's suppose you want to watch an NTFS file system.

You can take a look at the following:
- USN (write): Eyes on NTFS[^], http://www.donationcoder.com/forum/index.php?topic=22695[^]
- Audit trail (read/write) (http://support.microsoft.com/kb/310399[^]), and reading the logs
- FileSystemWatcher[^] (write)
- EyeHook[^] (read/write)
- and of course, you can use FileInfo.LastAccessTime[^] (or LastWriteTime[^]). LastAccessTime will only be relevant if it was it's tracking was not deactivated!

Posted 14-Sep-12 1:20am

Zoltán Zörgő

Updated 14-Sep-12 1:25am

v3

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Kuthuparakkal · Accepted Answer · 2012-09-14T01:23:00

Solution 3

May this help you:
Add Most Recently Used Files (MRU) List to Windows Applications[^]

Posted 14-Sep-12 1:23am

Kuthuparakkal