Variant subtypes, Visual Basic Programming

Assignment Help:

Beyond the simple string or numeric classifications, Variant can make added distinctions regarding the specific nature of numeric information. For instance, you can have numeric information which represents a date or a time. While used with other date or time data, the result is expressed as a time or date. You can also contain a rich variety of numeric information ranging from Boolean values to enormous floating-point numbers. These distinct categories of information which can be contained in a Variant are called subtypes. Mostly time, you can just put the type of data you desire in a Variant, & the Variant acts in a way that is most suitable for the data it contains.

The following table illustrates the subtypes of data that a Variant can contain.

Subtype

Description

EmptyVariant

Uninitialized. Value is 0 for numeric variables or a zero-length string

("") for string variables.

NullVariant

Intentionally have no valid data.

Boolean

Contains either True or False.

Byte

Contains integer in range 0 to 255.

Integer

Contains integer in range -32,768 to 32,767.

Currency

-922,337,203,685,477.5808 to 922,337,203,685,477.5807.

Long

Have integer in range -2,147,483,648 to 2,147,483,647.

Single

Have a single-precision, floating-point number in the range -

3.402823E38 to -1.401298E-45 for -ve values; 1.401298E-45 to

3.402823E38 for positive values.

Double

Have a double-precision, floating-point number in the range -

1.79769313486232E308 to -4.94065645841247E-324 for -ve values; 4.94065645841247E-324 to 1.79769313486232E308 for positive values.

Date

Have a number that represents a date between January 1, 100 to

December 31, 9999.

Time

Represents a time among 0:00:00 and 23:59:59

String

Have a variable-length string which can be up to approximately 2 billion characters in length.

Object

Have an object.

Error

Have an error number.

You can employ conversion functions to changed data from one subtype to another. Additionally, the VarType function returns information regarding how your data is stored within a Variant.


Related Discussions:- Variant subtypes

Lotto, You are asked to create the LOTO game customized according to the fo...

You are asked to create the LOTO game customized according to the following constraints: 1. Create a grid containing 20 numbers (20 buttons: button1, button2, …button20) 2. When t

Balancesheet, i need sample balance sheet form in vb.net

i need sample balance sheet form in vb.net

Software that is obscure - basics of gui design, Software That Is Obscure: ...

Software That Is Obscure: The Software hides the intensions, meaning and actions from the user. For illustration, if a user is asked whether a full installation, the custom in

Hungarian notation, Hungarian Notation: The Hungarian Notation was inv...

Hungarian Notation: The Hungarian Notation was invented by Charles Simonyi from Microsoft. It is a naming convention. It is a reminder of the type of a variable. The Handles h

File system controls, FILE SYSTEM CONTROLS There are 3 file system cont...

FILE SYSTEM CONTROLS There are 3 file system controls as shown in figure. The drive list box, directory list box & the file list box. The drive list box control is used to exhi

Data types - visual basic, DATA TYPES   The different primitive data t...

DATA TYPES   The different primitive data types are Boolean, Char, Byte, Date, Decimal, Uinteger, Double, Integer, Long, Sbyte, Short, Single, String, Ulong & Ushort. To decla

Module - dialog box in visual basic, MODULE The Modules are the collect...

MODULE The Modules are the collection of VB statements. Modules are used to simplify the program development. To add a module to your project, choose the project tabpage, and t

Visual interface based on visual patterns , Visual Interface  Based On Vis...

Visual Interface  Based On Visual Patterns: The visual user interface should create recognizable patterns and text will be used for differentiating the objects with similar pa

Properties of object method, Properties: VBScript Err Object ...

Properties: VBScript Err Object   Properties   Description   D escription Property The descriptive string related

Array Program, Would it be possible to see an example of an array program t...

Would it be possible to see an example of an array program that tracks rent in different apartment buildings and is modular?

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd