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This article will explain in detail how to summarize special VB.NET data types, the content of the article is of high quality, so the editor will share it for you as a reference. I hope you will have some understanding of the relevant knowledge after reading this article.

We have introduced you to several common VB.NET data types, and you should be able to fully grasp these types of applications through our introduction. Below you will learn about some special VB.NET data types, in order to increase your knowledge in this area.

In addition to the basic data types provided by Visual Basic, you can combine different types of items to create "compound data types" (such as structures, arrays, and classes). Compound data types can be generated from basic types and other composite types. For example, you can define an array of structure elements or a structure with array members.

Data type

A compound type is different from the VB.NET data type of any of its components. For example, an array of Integer elements is not of the Integer data type.

Array data types are usually represented by element types, parentheses (including commas if necessary). For example, an one-dimensional array of String elements is represented as String (), and a two-dimensional array of Boolean elements is represented as Boolean (,).

Structure type

No single data type contains all the structures. Instead, the definition of each structure represents a different data type, even if the two structures define the same elements in the same order. However, if you create two or more instances of the same structure, Visual Basic will consider them to be of the same data type.

Array type

No VB.NET data type contains all arrays. The data type of a particular instance of an array depends on the following:

It is indeed an array

The rank (dimension) of the array

Element type of the array

In particular, the length of a given dimension is not part of the data type of the instance. The following example illustrates this.

In the above example, although the array variables arrayA and arrayB are initialized to different lengths, they are treated as the same data type: Byte (). The variables arrayB and arrayC are not of the same type because they have different element types. The variables arrayC and arrayD are not of the same type because they have different ranks. The variables arrayD and arrayE are of the same type Short (,) because they both have the same rank and element type, even if arrayD has not been initialized.

For more information about arrays, see arrays (Visual Basic).

Types such as VB.NET data types

No VB.NET data type contains all classes. Although one class can inherit from another, each class is a separate data type. Multiple instances of the same class have the same data type. If you assign a class instance variable to another class, they not only have the same data type, but also point to the same class instance in memory.

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