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

Descriptive variable and procedure names, The body of variable or procedure...

The body of variable or procedure name must use mixed case and complete as essential to define its purpose. Additionally, procedure names must begin with a verb, such as CloseDialo

To calculate rectangle, two sides are given of a sheet e.g 23*36 i want hal...

two sides are given of a sheet e.g 23*36 i want half or 1/2 of this sheet next i want 1/4(one fourth) of this sheet if sheet size is 23*36 next i want 1/8 similary as above

Introduction to database applications , INTRODUCTION TO DATABASE APPLICATIO...

INTRODUCTION TO DATABASE APPLICATIONS   In this section, we define a dialog and tab order that is the order in which the controls will be navigated during the execution. The D

Message box - dialog box in visual basic, Message Box: The Message Box...

Message Box: The Message Box can be specified a title as shown in figure to specify the title for the message box follow by the command given below:  Private Sub Command1_C

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

Homework Help, Creating an application that will calculate the cost of a ca...

Creating an application that will calculate the cost of a car rental based on the number of days that the car is rented. the cost of the car rental includes the cost of the car its

Context-sensitive help, CONTEXT-SENSITIVE HELP   The Context-sensitive...

CONTEXT-SENSITIVE HELP   The Context-sensitive help gives online help for the circumstances which is associated with that state. The Context-sensitive help can be implemented

Events - intrinsic contol, Events: The Controls are placed on a form a...

Events: The Controls are placed on a form and then to make them functional an "event procedure" is related with the control object. An event process is what happens in respons

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