Stackoverflow > Docs > Linq Queries > SelectMany | C# Online Compiler

Stackoverflow > Docs > Linq Queries > SelectMany by bumbeishvili

using System;
using System.Linq;


class School
{
	public Student[] Students{get;set;}
}

class Student 
{
	public string Name {get;set;}
}

					
public class Program
{
	public static void Main()
	{
		
		var schools = new [] {
			new School(){ Students = new [] { new Student(){ Name="Bob"}, new Student(){ Name="Jack"} }},
			new School(){ Students = new [] { new Student(){ Name="Jim"}, new Student(){ Name="John"} }}
		};
		
		var allStudents = schools.SelectMany(s=> s.Students);
		
		foreach(var student in allStudents){
			Console.WriteLine(student.Name);
		}
		
		
	}
}

​x
 
using System;
using System.Linq;
​
​
class School
{
    public Student[] Students{get;set;}
}
​
class Student 
{
    public string Name {get;set;}
}
​
                    
public class Program
{
    public static void Main()
    {
        
        var schools = new [] {
            new School(){ Students = new [] { new Student(){ Name="Bob"}, new Student(){ Name="Jack"} }},
            new School(){ Students = new [] { new Student(){ Name="Jim"}, new Student(){ Name="John"} }}
        };
        
        var allStudents = schools.SelectMany(s=> s.Students);
        
        foreach(var student in allStudents){
            Console.WriteLine(student.Name);
        }
        
        
    }
}

Tell me and I forget.
Teach me and I remember.
Involve me and I learn.            Pad Unicode \u0080 next line
by Benjamin Franklin.
in 516007 ticks

-------- StringReader Issue ----------------
is string '\0' empty or null = False
is string '\0' whitespace or null = False
is char '\0' char.IsWhiteSpace = False
is char '\0' char.IsControl = True
is string '\0080' empty or null = False
is string '\0080' whitespace or null = False
Tell me and I forget.
Teach me and I remember.
Involve me and I learn.

   Pad Unicode \u0080 next line

by Benjamin Franklin.
in 553608 ticks

-------- StringReader Final ----------------
Tell me and I forget.
Teach me and I remember.
Involve me and I learn.
   Pad Unicode \u0080 next line
by Benjamin Franklin.
in 413406 ticks

-------- Regex ----------------
Tell me and I forget.
Teach me and I remember.
Involve me and I learn.            Pad Unicode \u0080 next line

by Benjamin Franklin.

in 9350130 ticks

Cached Result
Last Run:	11:59:45 am
Compile:	0.015s
Execute:	0.06s
Memory:	5.09Mb
CPU:	0.075s

View IL Code