DataTable/Array Linq查询

DataTable Linq查询

1.查询DataRow

1 IEnumerable<DataRow> q1 = from r in dt.AsEnumerable()
2                                       where r.Field<int>("ID") % 2 == 0
3                                       select r;

2.查询某个字段

1 var query2 =
2         from pl in dt.AsEnumerable( )
3         select pl.Field<string>("Name");

 

Array Linq查询

1 int[] values = { 2,9,5,0,3,7,1,4,8,5};  
2             var filtered =  
3                 from value in values  
4                 where value > 4  
5                 select value;