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POBackground Worker to update multiple items in a listview
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  1. POBackground Worker to update multiple items in a listview
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    copied!<p>I am trying to update multiple values in a list box using this method: What this method does is copy the contents of the specified directory but it outputs the current file name to the background worker progress changed event. </p> <pre><code>private bool CopyDirectory(string SourcePath, string DestinationPath, bool Recursive, BackgroundWorker worker, DoWorkEventArgs e) { List&lt;string&gt; Paths = new List&lt;string&gt;(); List&lt;string&gt; Files = new List&lt;string&gt;(); //for windows xp My documents if(!Directory.Exists(SourcePath)) { SourcePath = SourcePath.Replace(@"C$\Users\", @"C$\Documents and Settings"); int doccount = Regex.Matches(SourcePath, "Documents").Count; //if source contains 2 documents if(doccount &gt; 1) { ReplaceLastOccurrence(SourcePath, "Documents", "My Documents"); } } //set file permissions FileIOPermission f2 = new FileIOPermission(FileIOPermissionAccess.Read, SourcePath); f2.AllLocalFiles = FileIOPermissionAccess.Read; f2.Demand(); foreach (string StringPath in DirectoryList(SourcePath, Recursive, null)) Paths.Add(StringPath); foreach (string StringPath in FileList(SourcePath, Recursive, null)) Files.Add(StringPath); try { foreach (string dirPath in Paths) System.IO.Directory.CreateDirectory(dirPath.Replace(SourcePath, DestinationPath)); foreach (string newPath in Files) { string[] filename = newPath.Split('$'); string currentfile = "C:" + filename[1]; //report the file name to the background worker worker.ReportProgress(0, currentfile); System.IO.File.Copy(newPath, newPath.Replace(SourcePath, DestinationPath), Recursive); } return true; } catch { return false; } } private static List&lt;string&gt; FileList(string RootDirectory, bool SearchAllDirectories, Predicate&lt;string&gt; Filter) { List&lt;string&gt; retList = new List&lt;string&gt;(); try { List&lt;string&gt; DirList = new List&lt;string&gt; { RootDirectory }; if (SearchAllDirectories) DirList.AddRange(DirectoryList(RootDirectory, SearchAllDirectories, Filter)); foreach (string DirectoryStr in DirList) { DirectoryInfo di = new DirectoryInfo(DirectoryStr); try { foreach (FileInfo FileStr in di.EnumerateFiles()) { try { if ((Filter == null) || (Filter(FileStr.FullName))) retList.Add(FileStr.FullName); } catch (Exception) { } } } catch (UnauthorizedAccessException) { } catch (Exception) { } } } catch (Exception) { } return retList; } private static List&lt;string&gt; DirectoryList(string RootDirectory, bool SearchAllDirectories, Predicate&lt;string&gt; Filter) { List&lt;string&gt; retList = new List&lt;string&gt;(); try { DirectoryInfo di = new DirectoryInfo(RootDirectory); foreach (DirectoryInfo DirectoryStr in di.EnumerateDirectories()) { try { if ((Filter == null) || (Filter(DirectoryStr.FullName))) { retList.Add(DirectoryStr.FullName); if (SearchAllDirectories) retList.AddRange(DirectoryList(DirectoryStr.FullName, SearchAllDirectories, Filter)); } } catch (UnauthorizedAccessException) { } catch (Exception) { } } } catch (Exception) { } return retList; } </code></pre> <p>This works great for just one file name update, however, my program will do multiple copying of directors that i wish to update a list-view item to display it to the user.</p> <pre><code>private void bgwBackup_ProgressChanged(object sender, ProgressChangedEventArgs e) { this.InvokeEx(c =&gt; this.lblBackupStatus.Text = e.UserState.ToString()); } </code></pre> <p>My question is how would I update multiple listviewitems with the current filename of the specified path ? I can post my do work handler if needed. Thank you.</p> <p>EDIT1 Here is my DO_WORK as requested: </p> <pre><code> private void bgwBackup_DoWork(object sender, DoWorkEventArgs e) { //Textbox Array Values // 0 = computername // 1 = username // 2 = password string[] tbvalues = (string[])e.Argument; string computer = tbvalues[0]; string user = tbvalues[1]; string pass = tbvalues[2]; try { //AD SEARCH DirectoryEntry de = new DirectoryEntry("WinNT://" + Environment.UserDomainName + "/" + user); string homepath = de.Properties["homedirectory"].Value.ToString(); if (string.IsNullOrWhiteSpace(homepath)) { //do something when home drive is missing MessageBox.Show("NO H DRIVE"); } else { //Declare strings string os = GetOsName(computer); string desktop=""; string documents=""; string favorites=""; string outlooksig = ""; string outlookcache = ""; string hdriveroot = homepath + @"\PKBACKUP " + DateTime.Now.ToString("MM-dd-yyyy--hh-mm-ss"); string hudp = hdriveroot + @"\Desktop"; string hudoc = hdriveroot + @"\Documents"; string hufav = hdriveroot + @"\Favorites"; string hprintdir = hdriveroot + @"\printers\"; string outlooksigdir = hdriveroot + @"\Outlook Files\Signatures"; string outlookcachedir = hdriveroot + @"\Outlook Files\Cache"; if (os.Contains("XP")) { desktop = @"\\" + computer + @"\C$\Documents and Settings\" + user + @"\Desktop"; documents = @"\\" + computer + @"\C$\Documents and Settings\" + user + @"\My Documents"; favorites = @"\\" + computer + @"\C$\Documents and Settings\" + user + @"\Favorites"; //outlook signatures outlooksig = @"\\" + computer + @"\C$\Documents and Settings\" + user + @"\Application Data\Microsoft\Signatures"; //outlook cache outlookcache = @"\\" + computer + @"\C$\Documents and Settings\" + user + @"\Application Data\Microsoft\Outlook"; } else { desktop = @"\\" + computer + @"\C$\Users\" + user + @"\Desktop"; documents = @"\\" + computer + @"\C$\Users\" + user + @"\Documents"; favorites = @"\\" + computer + @"\C$\Users\" + user + @"\Favorites"; outlooksig = @"\\" + computer + @"\C$\Users\" + user + @"\AppData\Roaming\Microsoft\Signatures"; outlookcache = @"\\" + computer + @"\C$\Users\" + user + @"\AppData\Roaming\Microsoft\Outlook"; } //Copy Files using (new Impersonator(user, "Domain.org", pass)) { string outlookext = "nk2"; CopyDirectory(favorites, hufav, true, bgwBackup, e); CopyDirectory(documents, hudoc, true, bgwBackup, e); CopyDirectory(desktop, hudp, true, bgwBackup, e); CopyDirectory(outlooksig, outlooksigdir, true, bgwBackup, e); copybyext(outlookcache, outlookcachedir, outlookext, user); //copy nk2 file method //Printers List&lt;string&gt; printers = new List&lt;string&gt;(); foreach (string printername in lbBackupprinters.Items) { if (printername.Contains("No Printers Found")) { //Add listview entry that no printers were found } else { if (Directory.Exists(hprintdir) == false) { Directory.CreateDirectory(hprintdir); } string prntsvr; string printer; //strip out numbers in string prntsvr = Regex.Replace(printername, "[^0-9]+", string.Empty); //take the first number in the string prntsvr = prntsvr[0].ToString(); //remote everything before last comma printer = printername.Substring(printername.LastIndexOf(',') + 1); //add vbs to printer name printer = printer + ".vbs"; //get file path of printer vbs script string[] printerpaths = Directory.GetFiles(@"\\dist-win-prnt-" + prntsvr + @"\printerscripts", printer); //append string builder with print server path if (!File.Exists(printerpaths[0])) { //do something if the printer does not exist, add error. } else { printers.Add(printerpaths[0]); } } string defaultprinter = lbBackupprinters.Items[0].ToString() + ".vbs"; defaultprinter = defaultprinter.Substring(defaultprinter.LastIndexOf(',') + 1); // //Download printer vbs script(s) foreach (string printstring in printers) { string hprintfilename = printstring.Substring(printstring.LastIndexOf("\\") + 1); if (hprintfilename.Equals(defaultprinter)) { File.Copy(printstring, hprintdir + "(Defualt) "+ hprintfilename, true); } else { File.Copy(printstring, hprintdir + hprintfilename, true); } } } // end else } } } //end try catch (Win32Exception logonfail) { MessageBox.Show("LOGON FAIL" + logonfail); //add label for failure return; } catch (DirectoryServicesCOMException adfail) { MessageBox.Show(adfail.ToString()); } catch (UnauthorizedAccessException accessex) { MessageBox.Show(accessex.ToString()); } } </code></pre> <p>EDIT2: Image of program <img src="https://i.stack.imgur.com/aYCFG.jpg" alt="enter image description here"></p> <p>EDIT3: Here is my progress changed and completed code </p> <pre><code> //this only updates the status text and does not update the listview control. private void bgwBackup_ProgressChanged(object sender, ProgressChangedEventArgs e) { this.InvokeEx(c =&gt; this.lblBackupStatus.Text = e.UserState.ToString()); } private void bgwBackup_RunWorkerCompleted(object sender, RunWorkerCompletedEventArgs e) { lblBackupStatus.Text = "Backup job completed"; }` </code></pre>
 

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