浅谈MVC+EF easyui dataGrid 动态加载分页表格

/// <summary>
    /// 分页的数据
    /// </summary>
    /// <param name="page"></param>
    /// <param name="rows"></param>
    /// <returns></returns>
    public List<role> GetAllRoles(int page, int rows)
    {
      using (diamondEntities entity = new diamondEntities())
      {
        IQueryable<role> role = entity.roles.OrderBy(a => a.RoleId).Skip((page - 1) * rows).Take(rows);
        List<role> roleList = role.ToList<role>();
        if (roleList.Count > 0)
        {
          return roleList;
        }
        else
        {
          return null;
        }
      }
    }
    /// <summary>
    /// 获取总页数
    /// </summary>
    /// <returns></returns>
    public int GetTotal()
    {
      using (diamondEntities entity = new diamondEntities())
      {
        IQueryable<role> user = entity.roles.Select(m => m);
        List<role> userList = user.ToList();
        return userList.Count;
      }
    }

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