how to break out of "if" block in VB.NET

Question

How can I break out of an if statement?

Exit only works for "for", "sub", etc.

score 8 · Accepted Answer · answered Aug 05 '10 at 09:43

In VB.net:

if i > 0 then
   do stuff here!
end if

In C#:

if (i > 0)
{
  do stuff here!
}

You can't 'break out' of an if statement. If you are attempting this, your logic is wrong and you are approaching it from the wrong angle.

An example of what you are trying to achieve would help clarify, but I suspect you are structuring it incorrectly.

score 2 · Answer 2 · answered Aug 05 '10 at 09:43

2

There isn't such an equivalent but you should't really need to with an If statement. You might want to look into using Select Case (VB) or Switch (C#) statements.

answered Aug 05 '10 at 09:43

Radu

8,561
8
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91

score 2 · Answer 3 · answered Aug 05 '10 at 09:45

2

In C# .NET:

if (x > y) 
{
    if (x > z) 
    {
        return;
    }

    Console.Writeline("cool");
}

Or you could use the goto statement.

answered Aug 05 '10 at 09:45

thelost

6,638
4
28
44

1

Also you could throw an exception and catch it outside of `if`. Or just terminate the process :) – RocketR Jul 16 '11 at 20:34
Regarding the `goto` command, please read this: http://stackoverflow.com/questions/46586/goto-still-considered-harmful – Gertsen Feb 18 '16 at 15:19

score 0 · Answer 4 · edited Jun 15 '16 at 12:13

0

You can use

bool result = false;
if (i < 10)
{
    if (i == 7)
    {
        result = true;
        break;
    }
}

return result;

edited Jun 15 '16 at 12:13

Breeze

2,010
2
32
43

answered Jun 22 '12 at 17:28

user1218427

17
2

the code does not compile, stating that there is no loop to break out of – Breeze Jun 15 '16 at 11:24

score 0 · Answer 5 · answered Mar 19 '19 at 16:37

0

I have to admit, that in some cases you really wanna have something like an exit sub or a break. On a rare occasion is I use "Goto End" and jump over the "End If" with the def. End:

answered Mar 19 '19 at 16:37

David M.

1

score -3 · Answer 6 · answered Nov 07 '11 at 12:15

-3

I know this is an old post but I have been looking for the same answer then eventually I figured it out

        try{

            if (i > 0) // the outer if condition
            {
                Console.WriteLine("Will work everytime");
                if (i == 10)//inner if condition.when its true it will break out of the outer if condition
                {
                    throw new Exception();
                }
                Console.WriteLine("Will only work when the inner if is not true");
            }
        }
        catch (Exception ex)
        {
            // you can add something if you want
        }

`

answered Nov 07 '11 at 12:15

Ashar

11

8

bad idea to use exceptions for flow of control. They're slow. – Kate Gregory Nov 07 '11 at 14:04
3

Adding to what @KateGregory said, exceptions should only be used when the program enters a rare, error, or unexpected state. Using exceptions for means of flow control is harder to read, confusing, and less understandable for others. – Daryl Apr 26 '12 at 19:47
1

better use `Exit Try` (VB), may be `break` in C# – Ivan Ferrer Villa Nov 26 '15 at 15:43

how to break out of "if" block in VB.NET

6 Answers6