A list of other data types and structures can be found here. These options could be a list of settings or whatever you decide it be, except for a list of strings that actually contain spaces. EnumerationsĪn Enumeration is a list of named constants that, well, provides a list of options. For more information regarding arrays, MSDN has a more detailed explanation. Each item as an index that is contiguous from 0 through the highest index value. The individual items of an array are called simply the elements of the array. ArraysĪn array is a set of values that are logically related to each other. More information on Value types can be found here. Value TypesĪ value type holds the data within its own memory allocation. More information on Reference types can be found on MSDN. Reference TypesĪ reference type contains contains a pointer to another memory location that holds the data. If a variable stores a pointer to data elsewhere in memory, it is known as a reference type. If a variable stores its own data, it is known a value type. Visual Basic data types are classified according to whether a variable can store its own data or a pointer to data. Signed Integers can hold both positive and negative values.Unsigned Integers can store only positive numbers.1.401298E-45 through 3.4028235E+38 for positive valuesĠ to approximately 2 billion Unicode characters 8 bytes on 64-bit platformĪny type can be stored in a variable of type Object Table 1 indicates the allotted memory space for each Visual Basic data type as well as each data type’s acceptable range of values: Visual Basic Data TypeĠ:00:00 AM on Januthrough 11:59:59 PM on December 31, 9999Ġ through +/-79,228,162,514,264,337,593,543,950,335 (+/-7.9…E+28) with no decimal point. I define a Visual Basic data type the following way:Ī data type tells the programming element what type of data it can hold, how much space in memory the programming element should take up, and what the programming element is allowed to do or not. Data types apply to all values that can be stored in computer memory or participate in the evaluation of an expression. The data type of a programming element refers to what kind of data it can hold and how it stores that data. MSDN defines a Visual Basic data type the following way: Whatever the case may be, today’s article will help you fully understand Visual Basic and. I suppose for a newbie it is hard to envisage the whole concept of temporary information being stored depending on a data type. Explaining a concept as simple as a Data Type can sometimes end up consuming a lot of time. Not too long ago, I used to teach programming classes on a permanent basis now, I only do it part time. ![]() ![]() Some books go in depth, whereas other books simply just give data types a mention. Any decent introductory book on Visual Basic would cover data types.
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