我有一个返回JsonResult的函数,它应该是与提供的guid相关联的所有对象类型的列表。但是我收到了错误
LINQ to Entities无法识别方法'System.Type GetType()'方法,并且此方法无法转换为商店表达式。
这可能吗?
public JsonResult GetWebObjectTypesByWebObject(Guid id)
{
JsonResult result = new JsonResult();
var resultData = (from w in db.WebObjects
from r in w.RelatedWebObjects
where w.Id == id
select new { Type = r.GetType().BaseType.Name });
result.Data = resultData;
result.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
return result;
}
答案 0 :(得分:0)
试试这个:
public JsonResult GetWebObjectTypesByWebObject(Guid id)
{
JsonResult result = new JsonResult();
var data = (from w in db.WebObjects
from r in w.RelatedWebObjects
where w.Id == id
select r).ToList();
var resultData = data.Select(r => new { Type = r.GetType().BaseType.Name } );
result.Data = resultData;
result.JsonRequestBehavior = JsonRequestBehavior.AllowGet;
return result;
}
你放弃了延期执行,但在这种情况下似乎无关紧要。