Email Most Recent File From Directory

Question

I am using C# to open a Spreadsheet, change 3 things in the spreadsheet, then save the spreadsheet in a directory, then open the directory.  I was trying to use FileSystemWatcher to capture the most recent file in the directory, but it seems that the
Watch() event is being triggered before my syntax is able to make the changes and save.
Is their a better method for this or do I just need to add in a Thread.Sleep() event so that the Watch() event triggers after the save is complete?

Answer 1

Hi Indigo,
>>I was trying to use FileSystemWatcher to capture the most recent file in the directory,
but it seems that the Watch() event is being triggered before my syntax is able to make the changes and save.
I have tested your code on my side, I supposed that you can add one button, when you
change and save xls file successfully, try to trigger Watch() event by manual.
I changed a little code with yours.
Watch for changes in LastAccess and LastWrite times, and  the renaming of files or directories.
Add all event handlers.
Use messageBox to show something instead
Here is my test reslut:
 Do I miss something? If so, please feel free to post here.
public partial class Form1 : Form
public Form1()
InitializeComponent();
filewatcher();
private void filewatcher()
using (Process pRun = new Process())
pRun.StartInfo.FileName = "D:\\Test\\test.xlsx";
pRun.StartInfo.UseShellExecute = true;
pRun.Start();
string openPath = "D:\\Test\\";
Process pRC = new Process();
pRC.StartInfo.FileName = openPath;
pRC.Start();
private void Watch()
FileSystemWatcher watcher = new FileSystemWatcher();
watcher.Path = "D:\\Test";
watcher.NotifyFilter = NotifyFilters.LastAccess | NotifyFilters.LastWrite
| NotifyFilters.FileName | NotifyFilters.DirectoryName;
watcher.Filter = "*.xlsx";
// Add event handlers.
watcher.Changed += new FileSystemEventHandler(OnChanged);
watcher.Created += new FileSystemEventHandler(OnChanged);
watcher.Deleted += new FileSystemEventHandler(OnChanged);
watcher.EnableRaisingEvents = true;
private void OnChanged(object source, FileSystemEventArgs e)
WatcherChangeTypes changeTypes = e.ChangeType;
String filename = e.Name.ToString();
MessageBox.Show("Hello");
private void button1_Click(object sender, EventArgs e)
Watch();
MessageBox.Show("DOne");
//private void sendMail(string filename)
// using (MailMessage mail = new MailMessage())
// mail.From = new MailAddress("");
// mail.To.Add("");
// string fileDirectory = path;
// string fileFullPath = Path.Combine(filesDirectory, filename);
// if (!File.Exists(fileFullPath))
// return;
// using (var xlsx1 = new Attachment(fileFullPath))
// mail.Subject = "Test";
// mail.Attachments.Add(xlsx1);
// SmtpClient client = new SmtpClient("SMTP.MAIL.COM");
// client.Send(mail);
Best Regards,
Kristin
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