How do I execute a line conditionally in Visual Studio 2010?

Question

I'd like the line to execute when running within Visual Studio but not when the exe is running stand alone.

Thanks.

in which context do you want to run which line of code? – BitKFu May 23 '11 at 13:25 — BitKFu, May 23 '11 at 13:25
Do you mean to only execute the line in debug mode? – BoltClock May 23 '11 at 13:25 — BoltClock, May 23 '11 at 13:25

score 8 · Accepted Answer · answered May 23 '11 at 13:26

Do you mean when a debugger is attached? If so, you could do something like this:

#if DEBUG
if (Debugger.IsAttached)
{
    //Your code here
}
#endif

This will only run when the debugger is attached, such as running with F5. Double clicking it or using Ctrl+F5 won't cause the if statement to be hit. It's also wrapped in a conditional so then when you compile to release the code is not even there.

score 5 · Answer 2 · answered May 23 '11 at 13:26

5

You could use the build flags

#if DEBUG
      //do something in here
#endif

And then when you build in release those things won't happen.

answered May 23 '11 at 13:26

Fourth

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score 2 · Answer 3 · answered May 23 '11 at 13:28

2

You can use ConditionalAttribute. Put the code you want to execute conditionally in a method, and mark the method with [Conditional("DEBUG")]. The method and the call to it will only be compiled when the DEBUG constant is set.

answered May 23 '11 at 13:28

Tom W

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score 1 · Answer 4 · edited May 23 '17 at 12:19

1

Try this thread: How to tell if .NET code is being run by Visual Studio designer

edited May 23 '17 at 12:19

Community

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answered May 23 '11 at 13:25

E.J. Brennan

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score 0 · Answer 5 · answered Feb 27 '12 at 19:40

0

I think this code may help:

[Conditional("DEBUG")]
private void DEBUG_Execute() 
{ 
    if (Debugger.IsAttached)
    { 
        //todo:  execute line when running within VS
    } 
}

answered Feb 27 '12 at 19:40

ArekBee

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score -1 · Answer 6 · answered May 23 '11 at 13:35

-1

You can check the Application.startuppath

If you are in Debugging, that means bin/Debug folders are present otherwise you are running the exe. In this way you can formulate the code.

answered May 23 '11 at 13:35

Pankaj

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That seems very fragile, and for web applications, there is no Debug / Release directory. Just bin. – vcsjones May 23 '11 at 13:40
Yes. Thanks for the reply. But the OP did not mentioned ASP.net and I also have understood to use #if DEBUG if (Debugger.IsAttached) { //Your code here } #endif because of less computations. In my case I was evaluating the Application.startuppath – Pankaj May 23 '11 at 13:42
Even in other project types, this `Debug` path is not guaranteed to be present, and from my experience scarcely is with professional project build plans. In short, this is an awful idea. – Grant Thomas May 23 '11 at 13:48

How do I execute a line conditionally in Visual Studio 2010?

6 Answers6