Directives (Visual Basic)
The topics in this section document the Visual Basic source code compiler directives.
#Const Directive -- Define a compiler constant
#ExternalSource Directive -- Indicate a mapping between source lines and text external to the source
#If...Then...#Else Directives -- Compile selected blocks of code
#Region Directive -- Collapse and hide sections of code in the Visual Studio editor
#Disable, #Enable -- Disable and enable specific warnings for regions of code.
#Disable Warning BC42356 ' suppress warning about no awaits in this method Async Function TestAsync() As Task Console.WriteLine("testing") End Function #Enable Warning BC42356
You can disable and enable a comma-separated list of warning codes too.