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

Validation controls, Describe different validation controls of VB.net?

Describe different validation controls of VB.net?

Infomation system, what are the things that information system can do and t...

what are the things that information system can do and their limitations?

Vb script, We will discuss scripting language; called VB Script. VBScript i...

We will discuss scripting language; called VB Script. VBScript is Microsoft's scripting language. It enables us to write programs which enhance the power of Web pages by letting us

Declaring variables in vbscript, You declare variables explicitly in script...

You declare variables explicitly in script via the Dim statement, the Public statement, & the Private statement. For illustration: Dim DegreesFahrenheit You declare multiple

Introduction to controls and toolbars, INTRODUCTION TO CONTROLS AND TOOLBAR...

INTRODUCTION TO CONTROLS AND TOOLBARS The Visual Basic programming is an event driven programming. In the form objects the termed controls are placed. We can put the properties

Vb program for simple image processing, A program needs to be written that ...

A program needs to be written that is capable of simple image processing. All the images that are available for you to use, can be found on Blackboard in the Assignments section. T

Dictionary object in vbscript, The Dictionary object stores data as key, it...

The Dictionary object stores data as key, item pairs. A Dictionary object is the corresponding of a PERL associative array. Items, that can be any form of data, are stored in the a

Vb script basics, This section will discuss the fundamentals of VBScript an...

This section will discuss the fundamentals of VBScript and define concepts such as datatypes, loops and others. VBScript Data Types VBScript contain only one data type called

Arrays, I need to design a logic for a program that allows a user to enter ...

I need to design a logic for a program that allows a user to enter 15 numbers, then displays each number and its difference from the numeric average of the numbers entered

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