多条重复的数据，进行筛选
public JsonResult GetCascadeCategories()//报修部门 { string userid=base.Member.UserId; return Json(db.MVC_Get_V_UDZ().Where(c => c.UserCode == userid).Select(c => new { value = c.Deptid, text = c.dept }).Distinct(), JsonRequestBehavior.AllowGet); }
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