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C#: break

Handbook C# · Practical Guide

Terminates the nearest loop or switch. Does not complete the entire method.

Simple example (Example.cs)

Save this example separately as Example.cs. Run it independently of the other examples on this page.

Example.cs:

// PROJECT-EXAMPLE
for (int i = 0; i < 5; i++)
{
    if (i == 2) break;
    System.Console.WriteLine(i);
}

Result:

0
1

Syntax

break;

Example 1: simple form

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using System.IO;
using System.Runtime.InteropServices;
using System.Runtime.CompilerServices;

public static class Program
{
    public static async Task Main(string[] args)
    {
        foreach (int value in new[] { 1, 3, 7, 9 }) { if (value > 5) break; Console.WriteLine(value); }
    }
}

Example 2: another practical form

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
using System.IO;
using System.Runtime.InteropServices;
using System.Runtime.CompilerServices;

public static class Program
{
    public static async Task Main(string[] args)
    {
        int state = 2;
        switch (state) { case 1: Console.WriteLine("A"); break; case 2: Console.WriteLine("B"); break; }
    }
}

Official source: Microsoft Learn.