try
            {
                using (SPSite oSiteCollection = new SPSite(webUrl))
                {
                    using (SPWeb oWebsite = oSiteCollection.OpenWeb())
                    {
                        SPList listName = oWebsite.Lists.TryGetList("MCS");
                        if (listName != null)
                        {
                            SPView myView = listName.Views["GroupBy"];
                            if (myView != null)
                            {
                                SPQuery qry = new SPQuery(myView);
                                SPListItemCollection myItemsList = listName.GetItems(qry);
                                var results = (from SPListItem item in myItemsList
                                               group item by item["Group Number"]
                                                   into grp
                                                   select new
                                                       {
                                                           GroupID = grp.Key.ToString(),
                                                           ListItemsData = grp
                                                       });
                                foreach (var listData in results)
                                {
                                    MessageBox.Show(listData.GroupID);
                                    foreach (var item in listData.ListItemsData)
                                    {
                                        MessageBox.Show(item["XmlText"].ToString());
                                    }
                                }
                            }
                        }
                    }

                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }