Fix SD-1569 - Errors deleting a folder in projects pad cause unhandled exception

src/Main/Base/Project/Src/Services/File/FileService.cs

@@ -412,8 +412,7 @@ namespace ICSharpCode.SharpDevelop
 								Directory.Delete(fileName, true);
 						}
 					} catch (Exception e) {
-						MessageService.ShowException(e, "Can't remove directory " + fileName);
+						MessageService.ShowHandledException(e, "Can't remove directory " + fileName);
-//					return;
 					}
 				} else {
 					try {
@@ -424,8 +423,7 @@ namespace ICSharpCode.SharpDevelop
 								File.Delete(fileName);
 						}
 					} catch (Exception e) {
-						MessageService.ShowException(e, "Can't remove file " + fileName);
+						MessageService.ShowHandledException(e, "Can't remove file " + fileName);
-//					return;
 					}
 				}
 			}
@@ -464,9 +462,9 @@ namespace ICSharpCode.SharpDevelop
 						}
 					} catch (Exception e) {
 						if (isDirectory) {
-							MessageService.ShowException(e, "Can't rename directory " + oldName);
+							MessageService.ShowHandledException(e, "Can't rename directory " + oldName);
 						} else {
-							MessageService.ShowException(e, "Can't rename file " + oldName);
+							MessageService.ShowHandledException(e, "Can't rename file " + oldName);
 						}
 						return false;
 					}
@@ -508,9 +506,9 @@ namespace ICSharpCode.SharpDevelop
 					}
 				} catch (Exception e) {
 					if (isDirectory) {
-						MessageService.ShowException(e, "Can't copy directory " + oldName);
+						MessageService.ShowHandledException(e, "Can't copy directory " + oldName);
 					} else {
-						MessageService.ShowException(e, "Can't copy file " + oldName);
+						MessageService.ShowHandledException(e, "Can't copy file " + oldName);
 					}
 					return false;
 				}

src/Main/Core/Project/Src/Services/MessageService/MessageService.cs

@@ -52,6 +52,33 @@ namespace ICSharpCode.Core
 			ServiceManager.Instance.MessageService.ShowException(ex, message);
 		}
 		
+		/// <summary>
+		/// Shows an exception.
+		/// </summary>
+		public static void ShowHandledException(Exception ex)
+		{
+			ShowHandledException(ex, null);
+		}
+
+		/// <summary>
+		/// Shows an exception.
+		/// </summary>
+		public static void ShowHandledException(Exception ex, string message)
+		{
+			LoggingService.Error(message, ex);
+			LoggingService.Warn("Stack trace of last exception log:\n" + Environment.StackTrace);
+			message = GetMessage(message, ex);
+			ServiceManager.Instance.MessageService.ShowError(message);
+		}
+		
+		static string GetMessage(string message, Exception ex)
+		{
+			if (message == null) {
+				return ex.Message;
+			}
+			return message + "\r\n\r\n" + ex.Message;
+		}
+		
 		/// <summary>
 		/// Shows a warning message.
 		/// </summary>