0
,想知道如果我可以有条件地从表中的4个不同的领域,这是标志为1串,每个记录串联LINQ查询结果,以便它会是这样的:LINQ查询结果级联
dbContext.CONTACT_LOGs.Select(e => new
(e => new ContactLog
{
rec1 = e.Recommend1 ? "1 is recommended" : String.Empty,
rec2 = e.Recommend2 ? "2 is recommended" : String.Empty,
rec3 = e.Recommend3? "3 is recommended" : String.Empty,
rec4 = e.Recommend4 ? "4 is recommended" : String.Empty
//this doesn't work in a single query
ContactSummary = String.Concat(rec1, rec2, rec3, rec4)
});
public class ContactLog
{
public string rec1 { get; set; }
public string rec2 { get; set; }
public string rec3 { get; set; }
public string rec4 { get; set; }
public string ContactSummary { get; set; }
}
是有没有办法以这种方式做到这一点?由于
你能更清楚一点还是提供一个例子? – 2010-01-12 23:46:30
这里你去,谢谢 – VictorS 2010-01-12 23:51:11
是否有一个原因,你不能只是添加一个新的属性到'ContactLog'并进行连接而不是Linq查询? – 2010-01-12 23:52:15