EN CSharp Keyword goto

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C#: goto

Handbook C# · Practical Guide

Jumps to the label, case, or default in the available area. Use carefully: arbitrary transitions make reading difficult.

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
goto finished;
finished:
System.Console.WriteLine("Done");

Result:

Done

Syntax

goto label; / goto case value; / goto default;

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)
    {
        int attempt = 0;
        retry:
        attempt++;
        Console.WriteLine(attempt);
        if (attempt < 3) goto retry;
    }
}

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 = 1;
        switch (state) { case 1: Console.WriteLine("Prepare"); goto case 2; case 2: Console.WriteLine("Execute"); break; default: Console.WriteLine("Stop"); break; }
    }
}

Official source: Microsoft Learn.