CODEWITHSUNDEEP
c#c-preprocessor
FRules
FRules

Reputation: 749

How do I set a #define for each file?

What exactly is the purpose of #define in C#?

I currently develop an application using the ShareFile .NET API from https://github.com/citrix/ShareFile-NET

However, the samples don't run because the function which I want to call is in this block:

 #if Async

 #endif

I know I can do 

 #define Async

at the top of the files, but do I have to do this for every file which has functions in this #if block? What's the purpose of this?

Upvotes: 0

Views: 283

Answers (1)

CodeCaster
CodeCaster

Reputation: 151586

do I have to do this for every file?

No. You can pass symbols ("defines") to the compiler. Using Visual Studio, you can set that on the project level, at Project -> Properties -> Build -> Conditional compilation symbols.

Using the command-line C# compiler (csc) you use the /define: flag, and when using other IDEs or compilers, see their documentation.

Upvotes: 7

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