public static void Init() { MyModelContainer container = new MyModelContainer(); //Check if the init has been executed before if (container.Teams.Count() <= 0) { //Players #region FNATIC Player huni = new Player(); huni.Name = "Heo Seung-hoon"; huni.Gamertag = "Huni"; huni.Role = TeamRole.TOP; Player Reignover = new Player(); Reignover.Name = "Kim Ui-jin "; Reignover.Gamertag = "Reignover"; Reignover.Role = TeamRole.JUNGLE; Player Febiven = new Player(); Febiven.Name = "Fabian Diepstraten"; Febiven.Gamertag = "Febiven"; Febiven.Role = TeamRole.MID; Player Rekkles = new Player(); Rekkles.Name = "Martin Larsson"; Rekkles.Gamertag = "Rekkles"; Rekkles.Role = TeamRole.ADC; Player YellOwStaR = new Player(); YellOwStaR.Name = "Bora Kim"; YellOwStaR.Gamertag = "YellOwStaR"; YellOwStaR.Role = TeamRole.SUPPORT; Player Kektz = new Player(); Kektz.Name = "Bor Jeršan"; Kektz.Gamertag = "Kektz"; Kektz.Role = TeamRole.TOP; #endregion #region TSM Player Dyrus = new Player(); Dyrus.Name = "Marcus Hill"; Dyrus.Gamertag = "Dyrus"; Dyrus.Role = TeamRole.TOP; Player Santorin = new Player(); Santorin.Name = "Lucas Larsen"; Santorin.Gamertag = "Santorin"; Santorin.Role = TeamRole.JUNGLE; Player Bjergsen = new Player(); Bjergsen.Name = "Søren Bjerg"; Bjergsen.Gamertag = "Bjergsen"; Bjergsen.Role = TeamRole.MID; Player WildTurtle = new Player(); WildTurtle.Name = "Jason Tran"; WildTurtle.Gamertag = "WildTurtle"; WildTurtle.Role = TeamRole.ADC; Player Lustboy = new Player(); Lustboy.Name = " Ham Jang-sik"; Lustboy.Gamertag = "Lustboy"; Lustboy.Role = TeamRole.SUPPORT; #endregion //Teams Team FNATIC = new Team(); FNATIC.Name = "FNATIC"; FNATIC.Players.Add(huni); FNATIC.Players.Add(Reignover); FNATIC.Players.Add(Febiven); FNATIC.Players.Add(Rekkles); FNATIC.Players.Add(YellOwStaR); FNATIC.Players.Add(Kektz); Team TSM = new Team(); TSM.Name = "TSM"; TSM.Players.Add(Dyrus); TSM.Players.Add(Santorin); TSM.Players.Add(Bjergsen); TSM.Players.Add(WildTurtle); TSM.Players.Add(Lustboy); Competition firstMatch = new Competition(); firstMatch.Date = new DateTime(2015, 10, 03, 14, 0, 0); firstMatch.Teams.Add(TSM); firstMatch.Teams.Add(FNATIC); Ladder Season15 = new Ladder(); Season15.Season = "2015"; Season15.Competitions.Add(firstMatch); container.Teams.Add(FNATIC); container.Teams.Add(TSM); container.Competitions.Add(firstMatch); container.Ladders.Add(Season15); try { container.SaveChanges(); } catch (DbEntityValidationException ex) { // Retrieve the error messages as a list of strings. var errorMessages = ex.EntityValidationErrors .SelectMany(x => x.ValidationErrors) .Select(x => x.ErrorMessage); // Join the list to a single string. var fullErrorMessage = string.Join("; ", errorMessages); // Combine the original exception message with the new one. var exceptionMessage = string.Concat(ex.Message, " The validation errors are: ", fullErrorMessage); // Throw a new DbEntityValidationException with the improved exception message. throw new DbEntityValidationException(exceptionMessage, ex.EntityValidationErrors); } } }