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Last week, some users ran into an error with the vb.net debug constant. Several factors can cause this problem. We’ll cover them below.

I don’t see your problem here. I would and it works great. It’s a little annoying that compilation is not an unwanted effect directly available for code execution, but it makes sense if you think about it.

Answering Christian’s question, I think the difference with your packaging code, which contains compiler directives, is that the mode variable allows you to write cleaner, more descriptive code with potentially less duplication and is easier to maintain.

  Common to public module    #if DEBUG then        Public In_Debug As Boolean = True    #another        Public In_Debug As Boolean = false   #end ifEnd moduleOpen class uniform 1    Private subform1_Load (....)        If In_Debug, then SplashScreen.Hide ()        ... 

In-Debug effectively converts code that changes to A public module, into a global module, which you can treat as a constant in your project.

(Example explanation: Don’t show splash screen while debugging because it contains dialog boxes, etc.)

Of course, you can do the same with TRACE, Solid, or any custom compiler constant you want to declare.

And yes, as GregH mentioned, your company should make sure that you declare the DEBUG constant in your own project’s debug configuration (whether it’s called “Debug” or not). You don’t need such a declaration in Release; his absence is considered “bad”.

• 2 for easy reading minutes.

Some properties should be the same for all managed debugging scenarios.

The following options may vary depending on the different types of missions being performed. For example, the startup action is defined differently in Windows For ms update than it is in an ASP.NET project.

Build Configuration (C #) Or Compile (Visual Basic) Readabilitydatatable = “1”>

Properties Tab

Parameter
Define the DEBUG constant	C # and F #: Check the box. This allows your application to use the debug class.
Define a trace constant	C # and F #: Check this box. This allows one application to use the trace class.
Optimize Code	C #, F # and Visual Basic: bet on fake. Optimized code is harder to debug because the generated instructions don’t match your original code. If you are looking for a bug in your program that can only appear in optimized code, you can enable this option, but remember that the software that appears in the disassembly window was compiled from optimized sources, which may not match what you were using. for this. … be in the code editor window. To debug optimized code, you need to disable Just My Code. (See Restrict walking to my code only ). Forsee Project for Settings C # Debug Configurations or Project for Settings a Visual Basic Debug Configuration for more information.
exit path	Place bin Debug .
Advanced Compilation Options	Visual Basic only. Advanced Click to set the advanced properties described in the following table.

Advanced Compiler Options

property name Parameter

Enable Optimization For this reason, set the value to “false” as shown in the code optimization selection in the previous table. Generate such information for debugging Select the checkbox to set the / DEBUG code at compile time, which should be able to generate the information needed for debugging. DEBUGGING Define constant Select this check box to define your DEBUG constant, which will allow your application to use the Debug class. Define a trace constant SetCheck this important checkbox to define the TRACE rule that allows your application to use the Trace class.

See Also “Managed”

• Debug code
• C #, F #, and Visual Basic Project Types

Conditional compilation is the ability to docertain blockThe code is assembled in the applicationonly under certain conditions. Conditional compilation is usedPrecompiler directives that affect convolutions are inCompilation process. This inlay is often used to break the style used byfor debugging only. For example:

  #Const DEBUG = True Public Subscription SomeMethode () #If DEBUG Then    Console.WriteLine ("Enter method ()") #End If    a ... #If DEBUG Then    Console.WriteLine ("Exit SomeMethod ()") #End Sub 

If end #Const Information defines a character constantfor the compiler. This constant is used later in #If instructions. The if constant gives True , account statements in #If blocks are compiled in this particular application. constant ifevaluates to False like adsin the #If block are ignored.

Assortment constants defined by #Const A directive is the source file in which information appears. Anyway,When a constant is mentioned earlier in the definition, its meaning is Nothing . Therefore, it is preferable to define constantsnear the beginning of the file. Alternatively, the compiler can optionally be constantsalso installed on the command line in the Visual Studio .NET IDE. ifCompile from a string, use the command / define compiler switch as shown below:

 vbc MySource.vb / define: DEBUG = True 

You can define multiple constants in one / define transform by separating character = value Match good reasons for commas as follows:

 vbc MySource.vb ... 

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