Goto Statement In C#

C# GoTo

The goto is C# unconditional jump statement. When encountered, program flow jumps to the location specified by the goto.

The goto requires a label of operation. A label is a valid C# identifier followed by colon.

There are different-different ways for using Goto statement such as:

1. We can write code for loop with the help of goto statement

   int x = 1;
   Loop:
   x++;
   if (x < 100)
   {
       goto loop;
   }

2. The goto can also be used to jump to a case or default statement in a switch

Here is the example

string Fruit = "Apple";
switch (Fruit)
{
    case "Banana":
        MessageBox.Show(Fruit + " is the delecious fruit");
        break;
    case "Chair":
        MessageBox.Show(Fruit + " is the delecious fruit");
        break;
    case "Apple":
        goto case "Banana";
    case "Table":
        goto case "Chair";
    default:
        MessageBox.Show("Select valid option");
        break;
}

In this case, case and default statements of a Switch are labels thus they can be targets of a goto. However, the goto statement must be executed from within the switch. that is we cannot use the goto to jump into switch statement .

1. With while, we can understand easily with this example

   int a = 0;
   while (a < 10)
   {
       if (a == 5)
           goto cleanup;
   }
   cleanup:         
   MessageBox.Show(a);