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

Loops - VBScript, Using Loops to Repeat Code Looping let you to run a g...

Using Loops to Repeat Code Looping let you to run a group of statements repeatedly. Some loops repeat statements till a condition are False; others repeat statements till a con

Loan program, need help with logic part of loan program

need help with logic part of loan program

Refresh method - data control, The Refresh Method: The refresh method ...

The Refresh Method: The refresh method transfer to the first record in the record set. To invoke the refresh method follow the syntax which is as shown below: Form1.Data1.R

Vbscript operators, VBScript Operators VBScript contain a full range of...

VBScript Operators VBScript contain a full range of operators, including comparison operators, arithmetic operators, concatenation operators, and logical operators.

Explain Databound Controls, Databound Controls - A controls use to display ...

Databound Controls - A controls use to display the contents of table using Data Control , have to bound each Control to the specific field and the controls are Known as the Data Bo

Menus and tool bars in visual basic, MENUS AND TOOL BARS   The Menu op...

MENUS AND TOOL BARS   The Menu options can be checked, enabled, disabled, and popped up on an object. The Menu Object: The Menu control is used to generate a menu in

Messages - visual basic programming, MESSAGES The Windows-based applica...

MESSAGES The Windows-based applications do not make explicit function calls to acquire input. They wait for the system to pass the input to them. The system passes input to the

Login form, How to create a login form in vb 2010

How to create a login form in vb 2010

Object naming conventions, The following table lists suggested conventions ...

The following table lists suggested conventions for objects you might encounter while programming VBScript. Code Commenting Conventions All process should begin with a brie

Need help in us wordpress expert, US WordPress Expert We are functioning...

US WordPress Expert We are functioning on a software application based on WordPress (BuddyPress + Event Manager). Everything as far as functionality is done. Utmost of the styli

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