Datagridview won't change cell color

I have tried everything to make this change colors it seems. I have read through a lot of stackoverflow posts and have not found my answer. The colors changed before I made the datatable populate data from the database. After that they quit changing colors. Here is my code that is firing on CellFormatting event.

        public ScheduleUserControl()
    {
        InitializeComponent();
        dataGridView.CellClick += (s, e) => OnCellClick(e.ColumnIndex, e.RowIndex);
        dataGridView.CellFormatting += (s, e) => CellFormating(e.ColumnIndex, e.RowIndex);
        btnAll.Click += (s, e) => Filter(Filters.All);
        btnHourly.Click += (s, e) => Filter(Filters.Hourly);
        btnSalary.Click += (s, e) => Filter(Filters.Salary);
    }

private void CellFormating(int c, int r)
    {
        var cell = dataGridView[c, r];
        var tagObject = cell.Tag;
        if (tagObject == null)
        {
            cell.Style.ForeColor = Color.Black;
            cell.Style.BackColor = Color.White;
        }
        else
        {
            var tagType = tagObject.GetType();
            if (tagType == typeof(DayOff))
            {
                var avail = (DayOff)tagObject;
                if (avail != null)
                {
                    cell.Style.ForeColor = Color.White;
                    cell.Style.BackColor = Color.Firebrick;
                }
            }
            else
            if (tagType == typeof(DayOffRequest))
            {
                var request = (DayOffRequest)tagObject;
                if (request.Status == DayOffRequest.RequestStatus.Approved)
                {
                    cell.Style.ForeColor = Color.Black;
                    cell.Style.BackColor = Color.SkyBlue;
                }
                else
                if (request.Status == DayOffRequest.RequestStatus.Pending)
                {
                    cell.Style.ForeColor = Color.Black;
                    cell.Style.BackColor = Color.LightGoldenrodYellow;
                }
            }
            else
            if (tagType == typeof(Shift))
            {
                cell.Style.ForeColor = Color.White;
                cell.Style.BackColor = Color.Green;
            }
        }
    }

Any help would be greatly appreciated it. Debugging and stepping through it says it executes the cell.style changes but the datagridview just doesn't show those changes.