Update preprocessor-pragma-warning.md

[ghost]

The CS0414 warning has been changed to IDE0044.
As a consequence, we should remove or update this file:
docs/docs/csharp/misc/cs0414.md

[BillWagner]

Thanks for updating this @johnnyagerard

I did suggest a better fix than the one you supplied.

[BillWagner]

Instead of IDE0044 this should disable CS0414. The original, which only had 414 is misleading.

[ghost]

@BillWagner All right, now I understand.
So Visual Studio replaces the CS0414 and CS0169 warnings with IDE0044 'Make field readonly' message.
But the warnings still show up when using the command prompt.

[BillWagner]

@johnnyagerard

So Visual Studio replaces the CS0414 and CS0169 warnings with IDE0044 'Make field readonly' message.
But the warnings still show up when using the command prompt.

Close. The CS* warnings are generated by the compiler. The IDE* warnings are generated by Visual Studio for suggested refactorings or code fixes. (The IDE* warnings often generate a lightbulb suggestion to change code.)

[ghost]

@BillWagner Well, now I have the exact explanation of what got me confused.
Usually, when someone copy/paste some code in Visual Studio, errors and warnings show up automatically right? But this is not the case for CS0414 and CS0169 warnings. You have to build the solution, or run the application first for these warnings to show up in the error list of Visual Studio. So this is indeed unrelated to IDE0044.