Fixed CrossThreading Issue

// START BUTTON Event
private void StartBtn_OnClick(object sender, EventArgs e)
         {
             string dllName = cboxDlls.Text;

             try
             {
                 InputModel input = new InputModel (_coursesSource, dllName);

                 // Starting Background Crawler
                 _bgCrawler = new AbortableBackgroundWorker(); // Crawler in Background

         // Invokes BGWorker using invoke. Dunno why, but it worked
                 CoursesGrid.Invoke((Action)  delegate {_bgCrawler.RunWorkerAsync(input);});

                 // Starting Background Grid Refresher
                 RefreshGridWorker.RunWorkerAsync ();

             }
             catch (Exception ex)
             {
                 // TODO: Log and Add Exceptions Logs @ UI
             }
         }

// BG Worker 2 : Gridview refresher
private void RefreshGridWorker_DoWork(object sender, DoWorkEventArgs e)
         {
             while (1 == 1)
             {
                 CoursesGrid.BeginInvoke // Inline method declaration
                     (
                        (Action)delegate
                        {
                            if (_coursesSource.Count > 0)
                            {
                                _coursesSourceClone = new BindingSource();

                    // Not good but everysecond i copy the whole source list to a temp one
                                foreach (OutputModel m in _coursesSource)
                                {
                                    _coursesSourceClone.Add(m);
                                }

                                CoursesGrid.DataSource = _coursesSourceClone;
                                CoursesGrid.EndEdit();
                            }
                        }

                     ); // end of inline method declaration
                 Thread.Sleep(1000); // Checks every second for a new source
             }
             }
         }

 // Method of interest in the .dll - This is the method that parses each course
 public static void ParseCourse(ref Course parsedCourse, ref BindingSource coursesSource)
        {
            List<Discipline> courseDisciplines;

            // Auxiliar Methods Calling
            string name       = ParseCourseName();
            int segments      = CountCourseSegments();
            courseDisciplines = ParseCourseDisciplines();

            // Adding parsed course to list
            Course tmpCourse = new Course (name, segments, courseDisciplines);

            // Updating source of courses

            coursesSource.Add(new OutputModel(tmpCourse.Name,tmpCourse.DisciplinesCount,tmpCourse.Segments)); // Here is where i populate the source
            coursesSource.EndEdit();

            parsedCourse     = tmpCourse;
            m_parsedCourses.Add(tmpCourse);

            // Adding Unique Disciplines to List of Disciplines of the university
            foreach (Discipline disc in courseDisciplines)
            {
                 if (!m_parsedDisciplines.ContainsKey(disc.Code))
                 {
                     m_parsedDisciplines.Add(disc.Code, disc);
                 }
            }

            // Logging Step and Writing course to file
            Logs.LogWriter.LogInfo("Finished Parsing : " + tmpCourse.Name + " Total Disciplines : " + tmpCourse.DisciplinesCount);

         }