is there a c# feature to listen to csv file update?

Question

I have a csv file and I would like to make some actions whenever a new row is inserted to this csv file.

is there such a listener in c#?

Thanks a lot

Answer 1

There is a class FileSystemWatcher to inspect the file changes. FileSystemWatcher MSDN. in your case, you just need to filter with "*.csv".

Answer 2

No, there is not specifically a listener for a row being added, but there is such a thing, in .Net, as a FileSystemWatcher, which is a class that can monitor a file for changes. With it, you can react to a specific set of changes to the file that you choose, but what happens is completely up to you.

Answer 3

You can use the FileSystemWatcher to watch an arbitrary file for change events:

public MainWindow()
{
    InitializeComponent();

    FileSystemWatcher fsw = new FileSystemWatcher();
    fsw.Filter = "test1.csv";
    fsw.NotifyFilter = NotifyFilters.LastWrite;
    fsw.Path = "z:\\temp\\";
    fsw.Changed += Fsw_Changed;
    fsw.EnableRaisingEvents = true;    
}

private void Fsw_Changed(object sender, FileSystemEventArgs e)
{
    MessageBox.Show(e.FullPath);
}