转换平面结构最简单有效的方法是什么？
object[][] rawData = new object[][]
{
{ "A1","B1","C1" },{ "A1","C2" },{ "A2","B2","C3" },"C4" }
// .. more
};
成层次结构：
class X
{
public X ()
{
Cs = new List<string>();
}
public string A { get; set; }
public string B { get; set; }
public List<string> Cs { get; private set; }
}
结果应该是这样的
// pseudo code which describes structure:
result =
{
new X() { A = "A1",B = "B1",Cs = { "C1","C2" } },new X() { A = "A2",B = "B2",Cs = { "C3","C4" } }
}
最好使用Linq扩展方法.目标类X可以被更改(例如,列表的公共设置器),只有当现在不可能/有用时.
解决方法
对于这种特殊情况：
.GroupBy( x => new { a = x[0],b = x[1] } )
.Select( x => new { A = x.Key.a,B = x.Key.b,C = x.Select( c => c[2] ) })
