Breaking on certain conditions in nested loops

[Guest]

Hi everyone,

I am looping through 4 nested loops and I would like to break in the inner
most loop on certain condition and get the control on the 2 nd loop instead
of 3rd loop.
Here is briefly what I am trying to accomplish.

//Loop 1
For each lp_1 in Loop1
// Certain conditions
// Loop 2
For each lp_2 in Loop2
// Certain conditions
//Loop 3
For each lp_3 in Loop3
// Certain conditions
//Loop 4
For each lp_4 in Loop4
// certain condition
exit for loop 4 and also exit for loop 3 so that
control would move
loop2.

Please ignore the syntax. I would like to know if we can jump from inner
most loop to the intermediate (not immediate parnet loop) loop using either
VB.NET or C#.

Any ideas/ thoughts??

Thanks,
Uday

 

[Will Gillen]

How about using a boolean switch to determine if you should ALSO exit loop
3:

Dim bExitLoop3 as boolean

//Loop 1
For each lp_1 in Loop1
// Certain conditions
// Loop 2
For each lp_2 in Loop2
// Certain conditions
//Loop 3
bExitLoop3 = false
For each lp_3 in Loop3
if bExitLoop3 then Exit Loop
// Certain conditions
//Loop 4
For each lp_4 in Loop4
// certain condition
bExitLoop3 = True
Exit Loop
Next //Loop 4
Next //Loop 3
Next //Loop2
Next //Loop1

 

[Guest]

Thanks!
This will definately help to resolve the particular situation.

I am up against a Java developer and he is giving me hard time about the
limitations.

So does anyone know if there is inbuilt functionality?
Is there something like labelling the for loops and then providing break /
continue commands for the label name.

- Uday

 

[Cor Ligthert]

Uday,

Not in this version, unlucky you can in the 2005 version.

Cor

 

[Jay B. Harlow [MVP - Outlook]]

Uday,
You can use an Exit For to break out of a For Loop.

You will need to wait until VS.NET 2005 (currently in beta, due out later in
2005) for a Continue statement.

Hope this helps
Jay

 

[Herfried K. Wagner [MVP]]

So does anyone know if there is inbuilt functionality?
Is there something like labelling the for loops and then
providing break / continue commands for the label name.

You can add a label to the destination line and use 'GoTo' to go to the
label.

\\\
Foo: i = 10
..
..
..
GoTo Foo
///