C# how to check local folder for new files and keep a counter

Question

I am currently trying to keep a counter on c# on a local file folder for new files that are created.

I have two sub directories to CD and LP that I have to keep checking.

Maybe some pseudo code might help

        static int CDcounter = 0;
        static int LPcounter = 0;
        public void returnFileCount()
        {
            //Location of Files
            string[] files = Directory.GetFiles(@"C:\Data\LotData");


            //if file sub directory = cd go in and check for new files
            //if new files pop up in cd CDcounter ++ same for LP
        }

`files.Length` will give you current count of files in `LotData` folder, if new file added then this code should be executed again then only you will get latest count of files in that folder. This is what you are expecting? — Prasad Telkikar, Nov 04 '19 at 03:15
`files.Count()` will work as `Count()` is an extension method — Prasad Telkikar, Nov 04 '19 at 03:18
I just did the below and it still doesn't work `file = Directory.GetFiles(@"C:\Data\LotData\CD"); CDcounter = file.Count();` — Jonathan James, Nov 04 '19 at 03:23
I just realized I need to keep count on folders not files p.s — Jonathan James, Nov 04 '19 at 03:35
Duplicate of [Number of folder inside a directory](https://stackoverflow.com/questions/5996443/number-of-folder-inside-a-directory) — Herohtar, Nov 04 '19 at 04:22

Jonathan James · Answer 1 · 2019-11-04T03:49:30.280

0

I managed to find the answer guys

//Counter for directories
CDcounter = new System.IO.DirectoryInfo(@"C:\Data\LotData\CD").GetDirectories().Length;

https://stackoverflow.com/a/5996574/7144746

edited Nov 04 '19 at 03:49

answered Nov 04 '19 at 03:41

Jonathan James

61
7

score 0 · Answer 2 · answered Nov 04 '19 at 04:35

You could use Directory.GetDirectories to get the initial count of directories.

CDcounter = Directory.GetDirectories(@"C:\Data\LotData\CD").Length

Then you can use a FileSystemWatcher and filter only for directories.

        dirWatcher = new FileSystemWatcher();
        dirWatcher.Path = @"C:\Data\LotData\CD";
        dirWatcher.NotifyFilter = NotifyFilters.DirectoryName;
        dirWatcher.EnableRaisingEvents = true;

You can subscribe to the Created and Deleted events to keep a count of directories.

This answer details how to use FileSystemWatcher for directories and files

C# how to check local folder for new files and keep a counter

2 Answers2