UIGrid.Update C# (CSharp) Method

	protected virtual void Update ()
	{
		if (mReposition) Reposition();
		enabled = false;
	}

            internal void RefreshGrid()
            {
                Point currSelection = grid.SelectionIndex;

                GetSortedGridElements(refreshGrid_scratch);

                for (int i = 0; i < grid.ActualDimensions.Y; ++i)
                {
                    UIGridShareHubElement elem = grid.Get(0, i) as UIGridShareHubElement;

                    elem.Selected = false;

                    if (!refreshGrid_scratch.Contains(elem))
                    {
                        BokuGame.Unload(elem);
                    }
                }

                grid.Clear();

                for (int i = 0; i < refreshGrid_scratch.Count; ++i)
                {
                    grid.Add(refreshGrid_scratch[i], 0, grid.ActualDimensions.Y);
                    BokuGame.Load(refreshGrid_scratch[i]);
                }

                grid.Dirty = true;

                // Try to preserve selection index.
                // We might want to try to relocate the selected element if it moved instead.
                if (grid.ActualDimensions.Y > currSelection.Y)
                {
                    grid.SelectionIndex = new Point(0, currSelection.Y);
                }
                else if (grid.ActualDimensions.Y > 0)
                {
                    grid.SelectionIndex = new Point(0, grid.ActualDimensions.Y - 1);
                }

                Matrix parentMatrix = Matrix.Identity;

                grid.Update(ref parentMatrix);
            }