MVC中linq分组问题，我想按照姓名分组
  public ActionResult Item() 
        {
            var linq = from c in db.Companys
                       from d in db.Departments
                       from b in db.Brokers
                       where c.CompanyId == d.CompanyId 
                       where d.DeptId == b.DeptId
                       orderby c.CompanyName
                       select new vmodel
                       {
                           ComId = c.CompanyId,     //公司ID
                           ComName = c.CompanyName, //公司名称
                           DeptComId = d.CompanyId,  //部门所属的公司ID
                           DeptId = d.DeptId,       //部门ID
                           DeptName = d.IH_Name,    //部门名称
                           BrokerDeptId = b.DeptId, //经纪人所属部门ID
                           BrokerId = b.UserId,     //经纪人ID
                           BrokerName = b.RealName
                       }.ComName.GroupBy(c.CompanyId);
            return View(linq);
        }
我现在数据是这样的
2  安居房产  2  1  汇沅开元分店  1  1  陈先生  Edit | Details | Delete
2  安居房产  2  1  汇沅开元分店  1  15  郑惠华  Edit | Details | Delete
2  安居房产  2  1  汇沅开元分店  1  16  毕文彬  Edit | Details | Delete
2  安居房产  2  1  汇沅开元分店  1  17  颜晓辉  Edit | Details | Delete