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POEvents of watcher wont work as planned for synchronization program?
 

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  1. POEvents of watcher wont work as planned for synchronization program?
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    <p>So I am having a synchronization program and I am using the filesystemwatcher to watch the changing in a directory. Now I had a listbox and I would add a different text at Changed, Created, Renamed and Deleted. Now what I noticed was, sometimes when I create a file it gives me the text: </p> <p>"File has been created"</p> <p>"File has been changed"</p> <p>I read somewhere that the filesystemwatcher shouldn't be used cause the events are triggered when sometimes it shouldn't be.</p> <p>Now I get this problem(I think it's because of the multiple events at once), When I drag a file in the directory I am watching, It should copy the file to the 2nd directory. If it already exists in the 2nd directory it should delete it and then copy it. Now I got the error:</p> <pre><code>The process cannot access the file because it is being used by another process </code></pre> <p>At the line where I delete the existing file in the 2nd directory. Now I was wondering wether the Filesystemwatcher is the problem here. Since it also triggers events and maybe it is still being "changed". which shouldn't have been triggered.</p> <p>My question is:</p> <p>Is the filesystemwatcher the problem?(So more like, is this a known problem?)</p> <p>If so:</p> <p>Is there something to replace the filewatcher with?</p> <p>If not, this is my code + explanations of some variables:</p> <p>Source = the first directory</p> <p>target= the second directory</p> <p>Record(); = executes readquery</p> <p>postgresql(); = inserts in postgressql with the strSelectCmd (Has nothing to do with it)</p> <pre><code> public static void copyfolder() { String source = ConfigurationManager.AppSettings[@"Directory1"]; String target = ConfigurationManager.AppSettings[@"Directory2"]; Copy(@source, @target); } </code></pre> <p>(string.IsNullOrEmpty(filename) == false) The actuall check if the file exists in the database.</p> <pre><code> private void fileSystemWatcher1_Created(object sender, System.IO.FileSystemEventArgs e) { if (!pause) { logger("File created&gt; " + e.FullPath + " -Date:" + DateTime.Now); filepath = Path.Combine(source, e.Name); name = Path.GetFileNameWithoutExtension(filepath); extension = Path.GetExtension(e.FullPath); size = e.Name.Length; strSelectCmd = "INSERT INTO" + tablepostgresql + " (" + column1 + "," + column2 + "," + column3 + "," + column4 + ") VALUES('" + name + "','" + size + "',now(),'" + extension + "')"; readquery = "select * from " + tablemysql + " where name='" + name + "'"; postgresql(); Record(); if (string.IsNullOrEmpty(filename) == false) { if (Directory.Exists(e.FullPath)) { copyfolder(); Directory.CreateDirectory(target); } else { if (WaitForFileAvailable(e.FullPath, TimeSpan.FromSeconds(30))) { var file = Path.Combine(source, e.Name); var copy_file = Path.Combine(target, e.Name); var destination = Path.Combine(target, Path.ChangeExtension(source, Path.GetExtension(source))); if (File.Exists(copy_file))// Check to see if the file exists. { //If it does delete the file in the target and copy the one from the source to the target. File.Delete(copy_file); } File.Copy(e.FullPath, copy_file); } else // The file failed to become available within 10 seconds. { logger("Copy has failed reason: File is being used by another program"); } } } if (demo == "yes") { query = "INSERT INTO " + tablemysql + " (name,size,last_edit,extension) VALUES('" + name + "','" + size + "',now(),'" + extension + "')"; Mysql(); } } } </code></pre> <p>The error appears at this line:</p> <pre><code>File.Delete(copy_file); </code></pre>
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    1. USLoko
    1. USLoko
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    1. COMost likely, the problem is in your code; please, post it such that we can help you.
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      1. POEvents of watcher wont work as planned for synchronization program?
      1. USvarocarbas
    2. CO@varocarbas The problem is, I have alot of app config variables. So you wouldn't understand it. I can do it in chat?
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      1. POEvents of watcher wont work as planned for synchronization program?
      1. USLoko
    3. CORead also this http://stackoverflow.com/questions/1764809/filesystemwatcher-changed-event-is-raised-twice and this http://stackoverflow.com/questions/699538/file-access-error-with-filesystemwatcher-when-multiple-files-are-added-to-a-dire
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      1. USJehof
 

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