[英]Linq query how to select all columns
我有一个linq
查询,它给了我想要的输出:
var data = (from c in dtskip.AsEnumerable()
select new[] {
c.Field<string>("Suburb"), c.Field<string>("Postcode"), c.Field<string>("State"),c.Field<string>("ID"), c.Field<string>("SEARCHKEY"), c.Field<string>("RATING"), c.Field<string>("DELIVERY")
});
如何选择所有列而不是像c.field<string>("postcode")
那样给出名称。我的输出是仅来自数据表dtskip
的数据:
输出:
["DARWIN","0800","NT","2","DARWINNT","A","Delivery Area"]
,["ALAWA","0810","NT","5","ALAWANT","A","Delivery Area"],
["BRINKIN","0810","NT","6","BRINKINNT","A","Delivery Area"],
有没有其他方法我可以使用linq
查询从数据表中获取输出。
你有没有尝试过
var data = (From c in dtskip
select c).AsEnumerable(); //Not sure about the AsEnumerable :s
DataRow
包含一个ItemArray
成员,该成员将该行中的所有数据作为数组返回,缺点是它们都作为object
返回,但如果所有列都是相同类型,则可以将ItemArray
转换为所需类型(在此案例string
)
dtskip.Rows.Cast<DataRow>().Select(r => r.ItemArray.Cast<string>());
这将为您提供一个IEnumerable<IEnumerable<string>>
。
你在找这样的东西吗?
var data = dtskip.AsEnumerable().
Select(x => new
{
Suburb = x.Field<string>("Suburb"),
Postcode= x.Field<string>("Postcode"),
State= x.Field<string>("State"),
Id= x.Field<string>("ID"),
Searchkey = x.Field<string>("SEARCHKEY"),
Rating = x.Field<string>("RATING"),
Delivery = x.Field<string>("DELIVERY")
});
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