Initial commit

Settings/Extensions.cs

@@ -0,0 +1,41 @@
+using System.Configuration;
+using System.IO;
+
+using Common.Debug;
+
+namespace Common.Settings
+{
+    public static class Extensions
+    {
+        public static void DeleteOldConfigurationFiles(this ApplicationSettingsBase dataSet)
+        {
+            // Get information about where the current configuration data is stored
+            Configuration config = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.PerUserRoamingAndLocal);
+
+            // Create a file object for the configuation file
+            FileInfo configFile = new FileInfo(config.FilePath);
+
+            // If we can't get the parent directories then don't bother
+            if (configFile.Directory == null || configFile.Directory.Parent == null)
+                return;
+
+            // Loop over all directories of the configuration file parent directory
+            foreach (DirectoryInfo directory in configFile.Directory.Parent.GetDirectories())
+            {
+                // Delete the directory if it isn't the current config file directory
+                if (directory.FullName != configFile.Directory.FullName)
+                {
+                    try
+                    {
+                        directory.Delete(true);
+                    }
+                    catch (IOException exception)
+                    {
+                        // Another instance is probably accessing it - this directory will be deleted later on another run
+                        Tracer.WriteException(exception);
+                    }
+                }
+            }
+        }
+    }
+}