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准则分类——简单问题
原标题:Grouping in LINQ - simple question
  • 时间:2010-08-16 04:43:40
  •  标签:
  • c#
  • linq

我试图从一个叫作如下问题的领域获得一个独特的价值清单。 我的贬低(drpDomain)不只给我价值本身,而是包含这种形式的价值观:{Key = LNAU}等 我想看到的是价值本身。 我失踪了一点明显吗? 感谢!

var domainList = from v in db.Vendors
                         group v by new {v.Domain} into g
                         select g.Key;

        drpDomain.DataSource = domainList;
        drpDomain.DataBind();
最佳回答

而是考虑:

var domainList = from v in db.Vendors
                 select v.Domain;

drpDomain.DataSource = domainList.Distinct();
drpDomain.DataBind();

注:

你的询问中真正的别villa是匿名的物品;然而,不同的询问在传达意图方面更为有效,甚至可能更为有效。 也就是说,如果你只想确定分组调查的意外结果,就会尝试:

var domainList = from v in db.Vendors
                 group v by v.Domain into g
                 select g.Key;
问题回答

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