class as tree（包含其类型列表的类）

本文介绍了class as tree（包含其类型列表的类）的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！ 问题描述 我有这个类 StudentsGroup ，它还包含 HashSet< StudentsGroup> public class StudentsGroup { public string 名称; public int StudentsCount; public HashSet< StudentsGroup>子群; public StudentsGroup（） { SubGroups = new HashSet< StudentsGroup>（）; Name = no_name; } public StudentsGroup（ string name， int studens_count = 0 ）： this （） {姓名=姓名; StudentsCount = studens_count; } } 如何将元素添加到子组及其子组以分层方式。 例如我可以使用此代码添加项目 // ex AddGroup（新的StudentsGroup（第一年，第一部分，第1组，第1组），0,0,0 ）; 此 .SubGroups。 ElementAt（ 0 ）。子组。 ElementAt（ 0 ）。子组。 ElementAt（ 0 ）。子组。 添加（新 StudentsGroup（ 第一年，第1部分，第1组，第1组））; 现在我该如何实现函数 AddGroup 采用元素实例和父索引，如果父元素不存在则返回错误 public void AddGroup（StudentsGroup group ， params int [] ParentIndex） { // 方法体 } 我的意思 比较这两种情况 StudentsGroup school = new StudentsGroup（ 学校）; // 每年添加三年包含两个班级 school.SubGroups。添加（ new StudentsGroup（ year1 ））; school.SubGroups.Add（ new StudentsGroup（ YEAR2\" ））; school.SubGroups.Add（ new StudentsGroup（ year3\" ））; school.SubGroups.ElementAt（ 0 ）。SubGroups.Add（ new StudentsGroup（ class1））; school.SubGroups.ElementAt（ 0 ）。SubGroups.Add（ new StudentsGroup（ class2））; school.SubGroups.ElementAt（ 1 ）。SubGroups.Add（ new StudentsGroup（ class1））; school.SubGroups.ElementAt（ 1 ）。SubGroups.Add（ new StudentsGroup（ class2））; school.SubGroups.ElementAt（ 2 ）。SubGroups.Add（ new StudentsGroup（ class1））; school.SubGroups.ElementAt（ 2 ）。SubGroups.Add（ new StudentsGroup（ class2））; // 如果我实施AddGroup（组，父索引） school。 AddGroup（ new StudentsGroup（ year1 ）， 0 ）; school.AddGroup（ new StudentsGroup（ year2）， 0 ）; school.AddGroup（ new StudentsGroup（ year3）， 0 ）; school.AddGroup（ new StudentsGroup（ class1）， 0 ， 0 ）; school.AddGroup（ new StudentsGroup（ class2）， 0 ， 0 ）; school.AddGroup（ new StudentsGroup（ class1）， 0 ， 1 ）; school.AddGroup（ new StudentsGroup（ class2）， 0 ， 1 ）; school.AddGroup（ new StudentsGroup（ class1）， 0 ， 2 ）; school.AddGroup（ new StudentsGroup（ class2）， 0 ， 2 ）; //以及当我们有10级子组时，动态添加使用方法将有助于代码编写解决方案 public void AddGroup（StudentsGroup group ， params int [] ParentIndex） { HashSet< StudentsGroup> last_subGroups = this .SubGroups; StudentsGroup current = this ; for （ int i = 1 ; i < ParentIndex.Length; i ++） { last_subGroups = current.SubGroups; current = current.SubGroups.ElementAt（ParentIndex [i]）; } current.SubGroups.Add（ group ）; } I have this class StudentsGroup that also contain HashSet<StudentsGroup> public class StudentsGroup{ public string Name; public int StudentsCount; public HashSet<StudentsGroup> SubGroups; public StudentsGroup() { SubGroups = new HashSet<StudentsGroup>(); Name = "no_name"; } public StudentsGroup(string name,int studens_count=0):this() { Name = name; StudentsCount = studens_count; }}how can I add element to SubGroups and its SubGroups in hierarchical way.for example i can add item using this code//ex AddGroup(new StudentsGroup("first year, section one,group 1,subgroup 1"),0,0,0); this.SubGroups. ElementAt(0).SubGroups. ElementAt(0).SubGroups. ElementAt(0).SubGroups. Add(new StudentsGroup("first year , section one , group 1 , subgroup 1"));Now how can I implement function AddGroup that take element instance and parent index,and if parent not exist return errorpublic void AddGroup(StudentsGroup group, params int[] ParentIndex){ //method body}what I meancompare these two caseStudentsGroup school = new StudentsGroup("school");//add three years each year contain two classesschool.SubGroups.Add(new StudentsGroup("year1")); school.SubGroups.Add(new StudentsGroup("year2")); school.SubGroups.Add(new StudentsGroup("year3"));school.SubGroups.ElementAt(0).SubGroups.Add(new StudentsGroup("class1"));school.SubGroups.ElementAt(0).SubGroups.Add(new StudentsGroup("class2"));school.SubGroups.ElementAt(1).SubGroups.Add(new StudentsGroup("class1"));school.SubGroups.ElementAt(1).SubGroups.Add(new StudentsGroup("class2"));school.SubGroups.ElementAt(2).SubGroups.Add(new StudentsGroup("class1"));school.SubGroups.ElementAt(2).SubGroups.Add(new StudentsGroup("class2"));//if i implement AddGroup(group,parent index)school.AddGroup(new StudentsGroup("year1"), 0);school.AddGroup(new StudentsGroup("year2"), 0);school.AddGroup(new StudentsGroup("year3"), 0);school.AddGroup(new StudentsGroup("class1"), 0,0);school.AddGroup(new StudentsGroup("class2"), 0, 0);school.AddGroup(new StudentsGroup("class1"), 0, 1);school.AddGroup(new StudentsGroup("class2"), 0, 1);school.AddGroup(new StudentsGroup("class1"), 0, 2);school.AddGroup(new StudentsGroup("class2"), 0, 2);//and how about when we have 10 level of subGroups , dynamic add using method will facilitate code writing 解决方案 public void AddGroup(StudentsGroup group, params int[] ParentIndex){HashSet<StudentsGroup> last_subGroups = this.SubGroups;StudentsGroup current = this;for (int i = 1; i < ParentIndex.Length; i++){last_subGroups = current.SubGroups;current = current.SubGroups.ElementAt(ParentIndex[i]);}current.SubGroups.Add(group);} 这篇关于class as tree（包含其类型列表的类）的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！