Compiler Directive Summary

Visual Basic language keywords and run-time library members are organized by purpose and use.

Action	Language element
Define a compiler constant.	#Const Directive
Compile selected blocks of code.	#If...Then...#Else Directives
Collapse and hide sections of code.	#Region Directive
Indicate a mapping between source lines and text external to the source.	#ExternalSource Directive

See Also