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C# - Selectively suppress custom Obsolete warnings

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Bahasa C digunakan untuk apa?

Meskipun C dibuat untuk memprogram sistem dan jaringan komputer namun bahasa ini juga sering digunakan dalam mengembangkan software aplikasi. C juga banyak dipakai oleh berbagai jenis platform sistem operasi dan arsitektur komputer, bahkan terdapat beberepa compiler yang sangat populer telah tersedia.

Apa yang dimaksud dengan huruf C?

C adalah huruf ketiga dalam alfabet Latin. Dalam bahasa Indonesia, huruf ini disebut ce (dibaca [tʃe]).


Use #pragma warning disable:

using System;

class Test
{
    [Obsolete("Message")]
    static void Foo(string x)
    {
    }

    static void Main(string[] args)
    {
#pragma warning disable 0618
        // This one is okay
        Foo("Good");
#pragma warning restore 0618

        // This call is bad
        Foo("Bad");
    }
}

Restore the warning afterwards so that you won't miss "bad" calls.


The intent is to disable the warning for obsolete usage, regardless of whether the construct is marked with [Obsolete] or [Obsolete("Message")]. So use both CS0612 and CS0618:

#pragma warning disable 612, 618 

...

#pragma warning restore 612, 618 

Here's how to get the warning/error number in the first place:

  1. Rebuild your project.
  2. Go to the Output window.
  3. Look up the line of the warning/error you want to suppress.
    For example:
    C:\Users\Username\Documents\Visual Studio 2010\Projects\Projectname\Classname.cs(203,7): warning CS0162: Unreachable code detected
  4. Copy the number part after "CS".
  5. Then proceed as Jon Skeet says.

(Better always proceed as Jon Skeet says…)


You're looking for the #pragma warning disable directive

  • http://msdn.microsoft.com/en-us/library/441722ys(VS.80).aspx

Essentially you add the following command above the call site in the .cs file.

#pragma warning disable 612
SomeMethodCall

612 is the error message ID for calling obsolete methods


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