VB.NET Language in a Nutshell

This appendix consists of a reference for Visual Basic's built-in constants and enumerations.

VB.NET defines several enumerations in the Microsoft.VisualBasic namespace. For instance, the CompareMethod enumeration is defined as:

Enum CompareMethod Binary = 0 Text = 1 End Enum

Thus, we can use the following expressions in our VB code:

CompareMethod.Binary CompareMethod.Text

On the other hand, VB also defines two equivalent built-in constants in the Constants class of the Microsoft.VisualBasic namespace that serve the same purpose:

VbBinaryCompare VbTextCompare

Note, however, that VB does not define built-in constants corresponding to every member of every enum. For instance, there are no built-in constants that correspond to the OpenMode enum members . This enum is used in the FileOpen procedure/statement:

Enum OpenMode Input = 1 Output = 2 Random = 4 Append = 8 Binary = 32 End Enum

In this appendix, we list all of the VB constants and enumerations.