Preprocessor Directives in C# - CSharp Language Basics

CSharp examples for Language Basics:Preprocessor

Introduction

Preprocessor Directives	Usage
#define	defines a sequence of characters, called symbol.
#undef	undefine a symbol.
#if	testing a symbol or symbols to see if they evaluate to true.
#else	create a compound conditional directive, along with #if.
#elif	creating a compound conditional directive.
#endif	Specifies the end of a conditional directive.
#line	modify the compiler's line number and the file name output for errors and warnings.
#error	generating an error from a specific location in your code.
#warning	generating a level one warning from a specific location in your code.
#region	mark a block of code for Visual Studio Code Editor.
#endregion	marks the end of a #region block.