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

Vbscript error object clear method, Methods: VBScript Err Object ...

Methods: VBScript Err Object Clear Method Clears every property settings. Raise Method Generate a run-time error.

John Galt requests a program to double-check his Gas Bill, John''s gas supp...

John''s gas supply is read from a 4-digit meter each month that shows the current total gas used in cubic meters. The amount of gas used that month is determined by subtracting t

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.

Multiple document interface (mdi) windows , MULTIPLE DOCUMENT INTERFACE (MD...

MULTIPLE DOCUMENT INTERFACE (MDI) WINDOWS   The SDI (Single document interface) supports one open window or document at a particular time. Microsoft's notepad and paint are il

Program for add integers from 1-1000, Using Visual Studio 2010 C++ 1) U...

Using Visual Studio 2010 C++ 1) Using Windows Explorer, make a copy of Irvine\examples\Project_sample folder in the folder where you keep your materials for this course.

Mdi application - types of project using visual c++, MDI Application: ...

MDI Application: The MDI application utilizes the main frame window as the work space in which the user can open more document frame windows.

Operator precedence - vbscript operators, While several operations take pla...

While several operations take place in an expression, each part is evaluated & resolved in a predetermined order called operator precedence. You can employ parentheses to override

Recurson, types and concept of recurson

types and concept of recurson

For loop visual basic program, Write Visual Basic programs for the followin...

Write Visual Basic programs for the following: 1.     Write a program that uses a "For Loop" to generate a list of temperature conversions in one degree increments from a given

Source property, Returns or sets the name of the object or application whic...

Returns or sets the name of the object or application which generated the error originally. The Source property indicates a string expression which is usually the class name or pro

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