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POWindow service throws a type initializer error
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copied!<p>I'm not sure what is happening with this app. It worked fine then one day it stopped working. I've tried to eliminate individual elements in the code but as soon as I added a few enums (see code below) it broke - so I removed them but this did not reverse the issue. Then I started from a brand new win service (using VS2010 and VS2008), adding class level vars and once again after adding enums the service would not start.</p> <p>Here is the code and I was wondering if someone can help me out. I really appreciate it.</p> <pre><code>using _Mail; using System; using System.Collections.Generic; using System.Configuration; using System.Diagnostics; using System.IO; using System.Runtime.InteropServices; using System.ServiceProcess; using System.Text; using System.Threading; using System.Net.Mail; using Microsoft.Office.Core; using Microsoft.Office.Interop.PowerPoint; using Microsoft.SharePoint; namespace Uploader { public partial class _UploaderService : ServiceBase { private static string smtpServer = ConfigurationManager.AppSettings["smtpServer"]; private static string sendTo = ConfigurationManager.AppSettings["sendTo"]; private static string sendFrom = ConfigurationManager.AppSettings["sendFrom"]; private static string portalURL = ConfigurationManager.AppSettings["portalURL"]; private static string imageListFolder = ConfigurationManager.AppSettings["imageListFolder"]; private static string remFolder = ConfigurationManager.AppSettings["remoteFolder"]; private static string sourceFileName = ConfigurationManager.AppSettings["sourceFileName"]; private static string remoteDriveLetter = ConfigurationManager.AppSettings["remoteDriveLetter"]; private static string remoteShareName = ConfigurationManager.AppSettings["remoteShareName"]; private static string userName = ConfigurationManager.AppSettings["userName"]; private static string userPwd = ConfigurationManager.AppSettings["userPwd"]; private static string statusMessage; private static string[] files; private static SPWeb _Web = new SPSite(portalURL).OpenWeb(); private static NETRESOURCE res = new NETRESOURCE(); public enum ResourceScope { RESOURCE_CONNECTED = 1, RESOURCE_GLOBALNET, RESOURCE_REMEMBERED, RESOURCE_RECENT, RESOURCE_CONTEXT }; public enum ResourceType { RESOURCETYPE_ANY, RESOURCETYPE_DISK, RESOURCETYPE_PRINT, RESOURCETYPE_RESERVED }; public enum ResourceUsage { RESOURCEUSAGE_CONNECTABLE = 0x00000001, RESOURCEUSAGE_CONTAINER = 0x00000002, RESOURCEUSAGE_NOLOCALDEVICE = 0x00000004, RESOURCEUSAGE_SIBLING = 0x00000008, RESOURCEUSAGE_ATTACHED = 0x00000010 }; public enum ResourceDisplayType { RESOURCEDISPLAYTYPE_GENERIC, RESOURCEDISPLAYTYPE_DOMAIN, RESOURCEDISPLAYTYPE_SERVER, RESOURCEDISPLAYTYPE_SHARE, RESOURCEDISPLAYTYPE_FILE, RESOURCEDISPLAYTYPE_GROUP, RESOURCEDISPLAYTYPE_NETWORK, RESOURCEDISPLAYTYPE_ROOT, RESOURCEDISPLAYTYPE_SHAREADMIN, RESOURCEDISPLAYTYPE_DIRECTORY, RESOURCEDISPLAYTYPE_TREE, RESOURCEDISPLAYTYPE_NDSCONTAINER }; [StructLayout(LayoutKind.Sequential)] public struct NETRESOURCE { public ResourceScope dwScope; public ResourceType dwType; public ResourceDisplayType dwDisplayType; public ResourceUsage dwUsage; public string lpLocalName; public string lpRemoteName; public string lpComment; public string lpProvider; }; [DllImport("mpr.dll")] public static extern int WNetAddConnection2(ref NETRESOURCE netResource, string password, string username, int flags); public cisf_UploaderService() { InitializeComponent(); } protected override void OnStart(string[] args) { try { FileSystemWatcher fsWatcher = new FileSystemWatcher(); fsWatcher.Created += new FileSystemEventHandler(fsw_Created); DisconnectDrive(remoteDriveLetter); res.dwType = ResourceType.RESOURCETYPE_DISK; res.lpLocalName = remoteDriveLetter; res.lpRemoteName = remoteShareName; int stat = WNetAddConnection2(ref res, null, null, 0); statusMessage += "Map Network Drive status - " + stat + "."; //MapDrive(); CleanUp(); fsWatcher.Path = remFolder; fsWatcher.Filter = sourceFileName; fsWatcher.EnableRaisingEvents = true; } catch (Exception ex1) { WriteException(ex1,"Ex1"); } } protected override void OnStop() { } static void fsw_Created(object sender, FileSystemEventArgs e) { statusMessage += "\nNew PowerPoint file detected in directory."; ConvetToJpegs(); AcquireFiles(); CleanUp(); DisconnectDrive(remoteDriveLetter); statusMessage += "\nOperation sucessfuly completed."; EventLog.WriteEntry("Conversion Service Status", statusMessage, EventLogEntryType.Information); } protected static void ConvetToJpegs() { Microsoft.Office.Interop.PowerPoint.Application app = new Microsoft.Office.Interop.PowerPoint.Application(); Presentation pptPresentation = null; try { pptPresentation = app.Presentations.Open(remFolder + sourceFileName, MsoTriState.msoFalse, MsoTriState.msoFalse, MsoTriState.msoFalse); pptPresentation.SaveAs(remFolder + ".", PpSaveAsFileType.ppSaveAsJPG, MsoTriState.msoFalse); } catch (Exception ex2) { WriteException(ex2, "Ex2"); } finally { pptPresentation.Close(); statusMessage += "\nFile conversion completed."; } } protected static void AcquireFiles() { files = null; try { files = Directory.GetFiles(remFolder, "*.jpg"); } catch (Exception ex3) { WriteException(ex3, "Ex3"); } finally { statusMessage += "\nFiles acquired."; if (files.Length > 0) { DeleteOldSlides(); } } } protected static void DeleteOldSlides() { SPList imagesLibrary = _Web.Lists[imageListFolder]; _Web.AllowUnsafeUpdates = true; try { while (imagesLibrary.Items.Count > 1) { imagesLibrary.Items[imagesLibrary.Items.Count - 1].File.Delete(); } } catch (Exception ex4) { WriteException(ex4, "Ex4"); } finally { statusMessage += "\nOld slides deleted."; UploadToSharePoint(); } } protected static void UploadToSharePoint() { _Web.AllowUnsafeUpdates = true; FileStream fs = null; string fileName = string.Empty; try { foreach (string file in files) { fileName = file.Split(@"\".ToCharArray())[1].ToLower(); fs = File.Open(file, FileMode.Open); _Web.Files.Add(imageListFolder + "/" + fileName, fs, true); fileName = string.Empty; fs.Close(); } } catch (Exception ex5) { WriteException(ex5, fileName); } finally { statusMessage += "\nFiles uploaded to SharePoint."; _Web.AllowUnsafeUpdates = false; } } protected static void CleanUp() { string[] path = Directory.GetFiles(remFolder, "*.jpg"); string[] path1 = Directory.GetFiles(remFolder, "*.pptx"); try { foreach (string tempfiles in path1) { if (path != null) { File.Delete(tempfiles); } } foreach (string tempfiles in path) { if (path != null) { File.Delete(tempfiles); } } } catch (Exception ex6) { WriteException(ex6, "Ex6"); } finally { statusMessage += "\nFiles deleted from temporary directory " + remoteShareName ; } } //public static bool MapDrive() //{ // bool ReturnValue = false; // if (System.IO.Directory.Exists(remoteDriveLetter + ":\\")) // { // DisconnectDrive(remoteDriveLetter); // } // System.Diagnostics.Process p = new System.Diagnostics.Process(); // p.StartInfo.UseShellExecute = false; // p.StartInfo.CreateNoWindow = true; // p.StartInfo.RedirectStandardError = true; // p.StartInfo.RedirectStandardOutput = true; // p.StartInfo.FileName = "net.exe"; // p.StartInfo.Arguments = " use " + remoteDriveLetter + ": " + remoteShareName + " " + userPwd + " /user:" + userName; // p.Start(); // p.WaitForExit(); // string ErrorMessage = p.StandardError.ReadToEnd(); // string OuputMessage = p.StandardOutput.ReadToEnd(); // if (ErrorMessage.Length > 0) // { // throw new Exception("Error:" + ErrorMessage); // } else { ReturnValue = true; } return ReturnValue; } protected static void DisconnectDrive(string DriveLetter) { Process p = new Process(); p.StartInfo.UseShellExecute = false; p.StartInfo.CreateNoWindow = true; p.StartInfo.RedirectStandardError = true; p.StartInfo.RedirectStandardOutput = true; try { p.StartInfo.FileName = "net.exe"; p.StartInfo.Arguments = " use " + "Z" + ": /DELETE"; p.Start(); } catch (Exception ex7) { WriteException(ex7, "Ex7"); } finally { p.WaitForExit(); } } public static void WriteException(Exception ex, string source) { string err = "Uploader Error" + "\n\nError Message from method " + source + ": " + ex.Message.ToString() + "\n\nStack Trace: " + ex.StackTrace.ToString() + "\n"; EventLog.WriteEntry("Conversion Service", err, EventLogEntryType.Warning); _Mail sendEmail = new _Mail(); sendEmail.SMTPServer = smtpServer; sendEmail.MailTo = sendTo; sendEmail.MailFrom = sendFrom; sendEmail.MailSubject = "Uploader Error"; sendEmail.MailBody = err; sendEmail.Send(); } } } </code></pre>

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