B2017-249 Handle AutoSave feature of MSWord. Handle temporary documents which were not saved when PROMS crashed or was terminated without saving.

PROMS/Volian.Base.Library/TmpFile.cs

@@ -50,8 +50,32 @@ namespace Volian.Base.Library
 		}
 		public static void RemoveTmpDocs()
 		{
-			RemoveTmps("*.doc");
+			// B2017-249 Recover Temporary File And AutoSave support for MSWord
+			// Remove temporary Doc Files more than 2 days old so that files with changes can be recoered.
+			RemoveOldTmps("*.doc");
+			RemoveOldTmps("*.docx");
+			RemoveOldTmps("*.rtf");
 		}
+        private static void RemoveOldTmps(string extension)
+        {
+            string tmpFolder = VlnSettings.TemporaryFolder;
+            DirectoryInfo di = new DirectoryInfo(tmpFolder);
+            if (!di.Exists) return;
+            foreach (FileInfo fi in di.GetFiles(extension))
+            {
+                try
+                {
+                    // delete any docs.  If it fails, just go on to the next one becase
+                    // it may be open from another process.
+                    if(fi.LastWriteTimeUtc < DateTime.Now.AddDays(-2.0))
+                    fi.Delete();
+                }
+                catch (Exception ex)
+                {
+                    continue;   // if an error, go onto next file.
+                }
+            }
+        }
 
 		private static void RemoveTmps(string extension)
 		{