C#多重泛型如何调用

[涛声乄依旧]

public class ManagerHelper
{
public static Dictionary<string, Class> School=new Dictionary<string,Class> ();
}

-----------------------------------------------------------------------------------


public class Class
{
private string className;

public string ClassName
{
get { return className; }
set { className = value; }
}
private DateTime classStartTime;

public DateTime ClassStartTime
{
get { return classStartTime; }
set { classStartTime = value; }
}
private DateTime classEndTime;

public DateTime ClassEndTime
{
get { return classEndTime; }
set { classEndTime = value; }
}
private Dictionary<int, Student> students;

public Dictionary<int, Student> Students
{
get { return students; }
set { students = value; }
}
}
------------------------------------------------------------------------------------
public class Student
{
private int studentNum;

public int StudentNum
{
get { return studentNum; }
set { studentNum = value; }
}
private string studentName;

public string StudentName
{
get { return studentName; }
set { studentName = value; }
}
private string studentSex;

public string StudentSex
{
get { return studentSex; }
set { studentSex = value; }
}
private string studentRace;

public string StudentRace
{
get { return studentRace; }
set { studentRace = value; }
}
private string studentAddress;

public string StudentAddress
{
get { return studentAddress; }
set { studentAddress = value; }
}
private string studentPhone;

public string StudentPhone
{
get { return studentPhone; }
set { studentPhone = value; }
}
private string studentPostaCode;

public string StudentPostaCode
{
get { return studentPostaCode; }
set { studentPostaCode = value; }
}
private string className;

public string ClassName
{
get { return className; }
set { className = value; }
}
}

如何调用这个学生类里的东西呢？

[linuxca]

关注一下.

[涛声乄依旧]

引用

var dict = new Dictionary<int, Student>(); var student1 = new Student(); student1.xxx = xxx; ... dict.Add(1, student1); var student2 = new Student(); student2.xxx = xxx; ... dict.Add(2, student2); Class c = new Class(); c.students = dict; c.xxx = xxx; ... ManagerHelper.School.Add("某某学校", c);

我现在想查询sutdent里面的所有学生信息怎么办呢？

[小托尼]

foreach(KeyValuePair<String, Class> school in ManagerHelper.School) { foreach(KeyValuePair<String, Student> student in school.Students) { Console.WriteLine(student.StudentNum); } }

[小托尼]

不好意思上面失误了，不就就是字典嵌套吧， 和范型有半毛钱关系呀 foreach(KeyValuePair<String, Class> school in ManagerHelper.School) { foreach(KeyValuePair<String, Student> student in school.Value.Students) { Console.WriteLine(student.Value.StudentNum); } }

[threenewbee]

引用 3 楼 u010979281 的回复:

引用

var dict = new Dictionary<int, Student>(); var student1 = new Student(); student1.xxx = xxx; ... dict.Add(1, student1); var student2 = new Student(); student2.xxx = xxx; ... dict.Add(2, student2); Class c = new Class(); c.students = dict; c.xxx = xxx; ... ManagerHelper.School.Add("某某学校", c);

我现在想查询sutdent里面的所有学生信息怎么办呢？

var query = ManagerHelper.School.SelectMany(x => x.Value.students).Where(x => 条件);

[threenewbee]

var dict = new Dictionary<int, Student>(); var student1 = new Student(); student1.xxx = xxx; ... dict.Add(1, student1); var student2 = new Student(); student2.xxx = xxx; ... dict.Add(2, student2); Class c = new Class(); c.students = dict; c.xxx = xxx; ... ManagerHelper.School.Add("某某学校", c);