Exit from internal nested loop in c#

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How can i exit from internal loop in nested loop and then return to parent loop to complete it ?
i need the internal loop in such a condition return to parent loop to complete it.
IF i use break or continue will exit from all loops

Posted 8-Mar-12 23:56pm

aodeh

Updated 9-Mar-12 0:35am

v2

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5 solutions

Solution 7

<b>break</b> is the best way to come out from the loop if your condition is matched

Posted 9-Mar-12 1:58am

khan mohd faizan

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Rahul Rajat Singh · Accepted Answer · 2012-03-09T01:38:00

Solution 6

Use break. break will exit from the loop it is written inside and all other loops will just work fine.

Posted 9-Mar-12 1:38am

Rahul Rajat Singh

johannesnestler · Accepted Answer · 2012-03-09T01:19:00

Hi Ahmed,

Just use a boolean Flag - easy, extensible (you can repeat the pattern with any loop "nesting-depth".

C#

bool bBreak = false; ;
for (int i = 0; i < 10; i++)
{
    for (int i = 0; i < 20; i++)
    {
        if (i == 3) // break condition met?
        {
            bBreak = true; // set a flag to tell the outer loop(s) to break
            break; // break inner loop
        }
    }
    if (bBreak) // check if inner loop set break
        break; // break outer loop
}

E.F. Nijboer · Accepted Answer · 2012-03-09T00:00:00

Solution 1

You can use break to exit a loop. This will only exit the current (inner) loop.

Good luck!

Posted 9-Mar-12 0:00am

E.F. Nijboer

Comments

aodeh 9-Mar-12 6:19am

Thanks for answers , but i need the internal loop in such a condition return to parent loop to complete it.
IF i use break or continue will exit from all loops .

CPallini 9-Mar-12 6:39am

You are wrong, from the documentation: "The break statement terminates the closest enclosing loop".

E.F. Nijboer 9-Mar-12 11:07am

If break will exit all loops then there is something else wrong in your code I'm afraid. Try to step through it using the debugger and put a watch on all relevant variables to see what is happening.

CPallini 9-Mar-12 6:39am

My 5.

aodeh 9-Mar-12 6:43am

thanks, ok after break i want to return to parent (for) to complete it , not to complete sequential code .

Dean Oliver · Accepted Answer · 2012-03-09T00:57:00

Solution 4

C#

for (int i = 0; i < 15; i++)
           {
               for (int j = 0; j < 5; j++)
               {
                   //condition whatever you want the if statement to satisfy
                   if (j == 2)
                       j = 5;
               }
           }

Once you reassign the counter value the inner loop is then complete because it no longer needs to loop thus go into the parent loop again.

Posted 9-Mar-12 0:57am

Dean Oliver

Comments

johannesnestler 9-Mar-12 7:22am

I consider this as hack - what you do if your nesting depth is more than two? how will the second loop know to break? - look at my solution - with a simple flag... Don't you agree?

aodeh 9-Mar-12 7:56am

Thanks Dean Oliver