How to watch a file whenever we change or modify the content of the file or rename of the file using C#?

private System.IO.FileSystemWatcher watch;
this.watch.NotifyFilter = System.IO.NotifyFilters.Attributes;
this.watch.SynchronizingObject = this;
this.watch.Created += new System.IO.FileSystemEventHandler(this.watch_Create d);
this.watch.Deleted += new System.IO.FileSystemEventHandler(this.watch_Delete d);
this.watch.Renamed += new System.IO.RenamedEventHandler(this.watch_Renamed);
this.watch.Changed += new System.IO.FileSystemEventHandler(this.watch_change d);

// to start watch
watch.Path = "test.txt";//file name
watch.NotifyFilter = NotifyFilters.FileName | NotifyFilters.CreationTime | NotifyFilters.LastWrite;
watch.EnableRaisingEvents = true;

private void watch_Created(object sender, System.IO.FileSystemEventArgs e)
{
lbl_status.Text += e.Name +" "+e.ChangeType.ToString()+"\n";
}

private void watch_Deleted(object sender, System.IO.FileSystemEventArgs e)
{
lbl_status.Text +=" The File '"+ e.Name +"' has been "+e.ChangeType.ToString()+"\n";
MessageBox.Show(" The File '"+ e.Name + "' has been " + e.ChangeType);
}

private void watch_Renamed(object sender, System.IO.RenamedEventArgs e)
{
lbl_status.Text += " The File '"+e.OldName +"' renamed to "+e.Name+"\n";
MessageBox.Show(" The File '"+e.OldName + "' renamed to " + e.Name);
}

Hi,
Can we watch a file in windowsmobile....Is there any sample for filewatcher

__________________
Krishnakumar.S
Beware of Everything -that is un true; stick to the Truth shall succeed slowly but steadily

Hi,

Here i am giving the code for watch a file in windows mobile...
U can try this in ur program...


Here follows,

FileSystemWatcher watch = new FileSystemWatcher();

this.watch.EnableRaisingEvents = true;
this.watch.NotifyFilter = OpenNETCF.IO.NotifyFilters.Attributes;
this.watch.SynchronizingObject = this;
this.watch.Changed += new OpenNETCF.IO.FileSystemEventHandler(this.watch_cha nged);
this.watch.Deleted += new OpenNETCF.IO.FileSystemEventHandler(this.watch_del eted);
this.watch.Renamed += new OpenNETCF.IO.RenamedEventHandler(this.watch_rename d);


I am using click event for watch a file
Here its,
private void Click_Click(object sender, EventArgs e)
{
string[] tempPath = path1.Split('\\');
string tempVar = null;
for (int i = 0; i < tempPath.Length-1; i++)
{
tempVar += tempPath[i] + "\\";
}
this.watch.Path = tempVar;
this.watch.NotifyFilter = NotifyFilters.FileName | NotifyFilters.CreationTime | NotifyFilters.LastWrite;
this.watch.EnableRaisingEvents = true;
Status.Text += "\nstart watching" + path.Text;
}

private void watch_changed(object sender, OpenNETCF.IO.FileSystemEventArgs e)
{
path1=e.FullPath;
string tempText = null;
FileStream fls = new FileStream(path1, FileMode.OpenOrCreate, System.IO.FileAccess.Read);
StreamReader sr = new StreamReader(fls);
sr.BaseStream.Seek(0, SeekOrigin.Begin);
while (sr.Peek() > -1)
{
tempText = sr.ReadLine();
}
sr.Close();
fls.Close();
if (tempText != lastText)
{
lastText = tempText;
MessageBox.Show("The content of '"+e.Name+"' is modified to : "+tempText);
}
}

private void watch_deleted(object sender, OpenNETCF.IO.FileSystemEventArgs e)
{
MessageBox.Show(e.Name + " has " + e.ChangeType.ToString());
}

private void watch_renamed(object sender, OpenNETCF.IO.RenamedEventArgs e)
{
path.Text += e.OldName + " renamed to " + e.Name + "\n";
MessageBox.Show(e.OldName + " renamed to " + e.Name);
}

__________________
H2O

Without us, no one can survive..

Hi,
I used the above code... how to create a text file to watch in windowsmobile...Is there any method to view the file

__________________
Krishnakumar.S
Beware of Everything -that is un true; stick to the Truth shall succeed slowly but steadily

If u want to watch a text file means...

Create one text file in desktop and then copy and paste it into windows CE remote file viewer...

Then you can browse the file in your windowsmobile and then click to watch it.

That's it...

__________________
S.VinothkumaR
Behind me is infinite power,
Before me is Endless Possibility,
Around me is Boundless Opportunity,
Why should I fear!