private void RemoveFolder()
        {
            if (this._listOfFolders.Count == 0)
            {
                return;
            }

            CustumFolder remove = this._listOfFolders[this._listOfFolders.Count - 1];

            this._listOfFolders.RemoveAt(this._listOfFolders.Count - 1);

            _nextPossitionCustomFolderY -=
                PANEL_CHECKBOX_CUSTOMFOLDERS_SIZE_Y + PANEL_CHECKBOX_PADDING_Y;

            remove.Dispose();
        }