private void GetGroups()
        {
            _relatedGroups = new List <RealatedGroupView>();
            _groups        = new List <GroupView>();
            foreach (var group in _usersGroupsDataLayer.GetGroups())
            {
                _relatedGroups.Add(new RealatedGroupView(group, false));
                _groups.Add(new GroupView(group));
            }

            groupsView.DataSource        = _groups;
            relatedGroupsView.DataSource = _relatedGroups;
            relatedGroupsView.Columns["AssignedPermissions"].Visible = false;
            relatedGroupsView.Refresh();
            groupsView.DataSource = _groups;
            groupsView.Columns["AssignedPermissions"].Visible = false;
            groupsView.Refresh();
        }