Recursion之Demo
Model:public class PerSon
{
public string id { get; set; }
public string name { get; set; }
public int age { get; set; }
public int? PerSonId { get; set; }
/// <summary>
/// 该分类的子分类
/// </summary>
public List<PerSon> items { get; set; }
}Code:
class Program
{
static List<PerSon> list = new List<PerSon>()
{
new PerSon(){ id = "1", age=21, name="张飞1", PerSonId = null },
new PerSon(){ id = "2", age=22, name="张飞7", PerSonId = null },
new PerSon(){ id = "3", age=23, name="张飞8", PerSonId = null },
new PerSon(){ id = "4", age=24, name="张飞5", PerSonId = 1 },
new PerSon(){ id = "5", age=25, name="张飞4", PerSonId = 2 },
new PerSon(){ id = "6", age=27, name="张飞3", PerSonId = 3 },
new PerSon(){ id = "7", age=28, name="张1", PerSonId = 3 },
new PerSon(){ id = "8", age=29, name="张2", PerSonId = 4 },
new PerSon(){ id = "9", age=30, name="张飞1", PerSonId = 5 },
};
static void Main(string[] args)
{
var ViewData = new List<PerSon>();
list.ForEach((u) =>
{
if (u.PerSonId == null)
{
ViewData.Add(new PerSon()
{
age = u.age,
id = u.id,
name = u.name,
items = getitem(u.id)
});
}
});
var a = ViewData;
}
public static List<PerSon> getitem(string id)
{
List<PerSon> perSons = new List<PerSon>();
foreach (var items in list)
{
if (items.PerSonId.ToString() == id)
{
perSons.Add(new PerSon()
{
age = items.age,
id = items.id,
name = items.name,
PerSonId = Convert.ToInt32(id),
items = getitem(items.id)
});
}
}
return perSons;
}
}
文档来源：51CTO技术博客https://blog.51cto.com/u_15316096/3209790
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