public PagedList <SystemRole> selectRole(Expression <Func <SystemRole, bool> > criteria1, bool pager, int?index, int?size)
{
PagedList <SystemRole> list;
if (pager)
{
list = _SystemRoleService.GetWhere(criteria1).OrderBy(r => r.RoleName).ToPagedList(index ?? 1, size == null ? 5 : int.Parse(size.ToString()));
}
else
{
list = (PagedList <SystemRole>)_SystemRoleService.GetWhere(criteria1).OrderBy(r => r.RoleName).ToList();
}
return(list);
}