public static void RemoveContender(int sysid)
        {
            // first check if contender came from unplaced contemders, if so remove
            if (VisualUnplacedBracketsList.Any(x => x.SystemID == sysid) == true)
            {
                var cont = VisualUnplacedBracketsList.Where(x => x.SystemID == sysid).Select(c => c).Single();
                // remove
                VisualUnplacedBracketsList.Remove(cont);
                return;
            }

            // the contender exist in one of the visual brackets
            bool isRemoved = false;

            // extract Current Bracket
            foreach (VisualBracket vb in VisualBracketsList)
            {
                foreach (VisualContender c in vb.VisualCont)
                {
                    if (c.Contender.SystemID == sysid)
                    {
                        vb.VisualCont.Remove(c);
                        isRemoved = true;
                        break;
                    }
                }

                if (isRemoved == true)
                {
                    break;
                }
            }

            isRemoved = false;

            // extract Current Bracket
            foreach (VisualBracket vb in VisualBracketsList)
            {
                foreach (Contenders.Contender c in vb.Bracket.ContendersList)
                {
                    if (c.SystemID == sysid)
                    {
                        vb.Bracket.ContendersList.Remove(c);
                        isRemoved = true;
                        // refresh bracket
                        if (vb.Refresh() != null)
                        {
                            // the user moved the last contender from the bracket, bracket will be removed
                            VisualBracketsList.Remove(vb.Refresh());
                        }
                        break;
                    }
                }

                if (isRemoved == true)
                {
                    break;
                }
            }
        }
        public static void ClearClass()
        {
            if (VisualBracketsList != null)
            {
                for (int i = 0; i < VisualBracketsList.Count; i++)
                {
                    VisualBracketsList[i].Dispose();

                    for (int j = 0; j < VisualBracketsList[i].VisualCont.Count; j++)
                    {
                        VisualBracketsList[i].VisualCont[j].Dispose();
                    }
                }

                VisualBracketsList.Clear();
                VisualBracketsList = null;
            }



            if (VisualUnplacedBracketsList != null)
            {
                for (int i = 0; i < VisualUnplacedBracketsList.Count; i++)
                {
                    VisualUnplacedBracketsList[i].Dispose();
                }

                VisualUnplacedBracketsList.Clear();
                VisualUnplacedBracketsList = null;
            }



            if (AllVisualContenders != null)
            {
                for (int i = 0; i < AllVisualContenders.Count; i++)
                {
                    AllVisualContenders[i].Dispose();
                }

                AllVisualContenders.Clear();
                AllVisualContenders = null;
            }

            if (UndoList != null)
            {
                UndoList.Clear();
                UndoList = null;
            }
        }
        /// <summary>
        /// the application will save the last 15 changes
        /// </summary>
        /// TODO: FINISH THIS!
        public static void AddToUndoList()
        {
            // save the current event to struct
            UndoStruct undo = new UndoStruct();

            undo.AllVisualContenders         = new List <VisualContender>();
            undo._VisualBracketsList         = new List <VisualBracket>(VisualBracketsList.Clone());
            undo._VisualUnplacedBracketsList = new List <VisualContender>(VisualUnplacedBracketsList.ToList());

            if (UndoList.Count == 14)
            {
                UndoList.RemoveAt(0);
            }

            UndoList.Add(undo);
        }
        internal static void CreateNewBracket(int ContID)
        {
            // first check unplacedList to remove
            if (VisualUnplacedBracketsList.Any(x => x.SystemID == ContID) == true)
            {
                var cont = VisualUnplacedBracketsList.Where(x => x.SystemID == ContID).Select(c => c).Single();
                // remove from unplaced area
                VisualUnplacedBracketsList.Remove(cont);
            }
            else
            {
                // remove from Bracket area
                RemoveContender(ContID);
            }

            // the old visual contender will be disposd in order to remove from GUI
            var NewBracketVisualContToDispose = AllVisualContenders.Where(x => x.SystemID == ContID).Select(c => c).Single();
            // new visual contender will be created for the new bracket
            var NewBracketCont = AllVisualContenders.Where(x => x.SystemID == ContID).Select(c => c.Contender).Single();

            // remove from AllvisualContenders list (will be created again later)
            AllVisualContenders.Remove(NewBracketVisualContToDispose);
            // dispose old visual contender and he will dissapear from his old place in GUI
            NewBracketVisualContToDispose.Vcontender.Dispose();
            NewBracketVisualContToDispose = null;

            // create a new bracket
            MartialArts.Bracket newBracket = new MartialArts.Bracket(NewBracketCont.AgeCategory, NewBracketCont.Belt, NewBracketCont.WeightCategory);
            newBracket.AddSingleContender(NewBracketCont);
            // create a new visual bracket
            VisualBracket newVisualBracket = new VisualBracket(newBracket);

            newVisualBracket.Init();
            // add to bracket list
            VisualBracketsList.Add(newVisualBracket);
            // add to panel
            FormObj.BracktsFPanel.Controls.Add(newVisualBracket.Vbracket);
            // add the"new" visual contender to AllContenderList (he was removed) in order to find him in searches
            AllVisualContenders.Add(newVisualBracket.VisualCont[0]);
            // scroll to end of the panel to show the user the new bracket, first wait for weak graphic cards
            System.Threading.Thread.Sleep(50);
            FormObj.BracktsFPanel.VerticalScroll.Value = FormObj.BracktsFPanel.VerticalScroll.Maximum;
            // refresh clocks
            FormObj.UpdateClocks();
        }
        /// <summary>
        /// add contender to visual bracket or to unplaced list
        /// </summary>
        /// <param name="sysid"></param>
        /// <param name="b">if null contender is moving to uplaced list</param>
        public static void AddContender(int sysid, VisualBracket b = null)
        {
            var VisualContender = AllVisualContenders.AsEnumerable().Where(x => x.Contender.SystemID == sysid).Single();

            // first remove from current bracket if contender is not from unplaced panel
            RemoveContender(sysid);
            // TODO: DISCOVER BUG: there is a very rare unknown bug, probably somthing with the drag and drop,
            // the bug creates contender that exist twice, in the GUI the user dont see it, but in the lists he exist twice
            // very rare bug and its hard to dicover it
            // the if steatment should solve it as a quick fix
            if (VisualBracketsList.SelectMany(x => x.Bracket.ContendersList).Any(x => x.SystemID == sysid) == true)
            {
                return;
            }

            if (b == null)
            {
                // add to unplaced list
                VisualUnplacedBracketsList.Add(VisualContender);
            }
            else
            {
                // moving to a bracket
                b.VisualCont.Add(VisualContender);
                b.Bracket.ContendersList.Add(VisualContender.Contender);
                // refresh the new bracket
                if (b.Refresh() != null)
                {
                    // the user moved the last contender from the bracket, bracket will be removed
                    VisualBracketsList.Remove(b.Refresh());
                }
            }

            // update GUI Clocks
            FormObj.UpdateClocks();
        }
 public static void AddUnplacedContender(VisualContender cont)
 {
     VisualUnplacedBracketsList.Add(cont);
 }