Skip to Main Content
Building Applications and Components with Visual Basic .NET
book

Building Applications and Components with Visual Basic .NET

by Ted Pattison, Dr. Joe Hummel
October 2003
Intermediate to advanced content levelIntermediate to advanced
592 pages
13h 42m
English
Addison-Wesley Professional
Content preview from Building Applications and Components with Visual Basic .NET

Creating User-Defined Value Types

Let's start by asking a fundamental question: What criteria does the CLR use to determine whether a type is a value type or a reference type? The CLR uses a simple rule: Every type that inherits either directly or indirectly from System.ValueType is a value type. Any type that does not follow this rule is a reference type.

Figure 10.1 shows how value types fit into the CTS's inheritance hierarchy. Many system-provided primitive types such a Boolean, Int32, Double, and DateTime are defined as value types. Notice that all enumerations and structures are defined as value types as well because they inherit from ValueType.

Figure 10.1. All types that inherit from System.Value type are considered value types.

Visual ...

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.
Start your free trial

You might also like

Visual Basic® .NET Power Coding

Visual Basic® .NET Power Coding

Paul Kimmel
Visual Basic 2015 Unleashed

Visual Basic 2015 Unleashed

Alessandro Del Sole
Programming in the .NET Environment

Programming in the .NET Environment

Damien Watkins, Mark Hammond, Brad Abrams

Publisher Resources

ISBN: 0201734958Purchase book