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

Visual basic 2012, I am a beginner in Visual basic 2012 and making a data m...

I am a beginner in Visual basic 2012 and making a data management programme with visual basic 2012 as front end and MySql as back end. I want to filter data grid view table with Li

Files in a sdi and mdi application, Files in a SDI and MDI Application: ...

Files in a SDI and MDI Application: Both the SDI and MDI projects have 4 implementation files (.cpp extension). These are the files equivalent to the Document Class, View Clas

Differences between Property Get, What are the differences between Property...

What are the differences between Property Get, Set and Let? Set - Value assigned to ActiveX Object from the form. Let - Value retried to ActiveX Object from the form. Get- Assigns

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

Loan program, need help with logic part of loan program

need help with logic part of loan program

program that compares interest rates between two banks, 'This program comp...

'This program compares interest rates between two banks and determines the best bank PublicClassForm1 PrivateSub Button1_Click(sender AsSystem.Object, e AsSystem.EventArgs) H

Create an application that calculates customer monthly bill, In this assign...

In this assignment, you will create an application that calculates and displays a customer's monthly cable bill. Your interface should look like this: Requirements:

Vbscript dictionary object properties, Just like normal objects Dictionary ...

Just like normal objects Dictionary object also has definite properties. These properties can be set to any valid value & can be retrieved as and while required. Pr

Coding, Write an event procedure to automate the billing system of a superm...

Write an event procedure to automate the billing system of a supermarket. Give the details of database tables, forms, controls and menu design (if any). Make assumptions, wherever

Device context - visual c++, DEVICE CONTEXT The device context provides...

DEVICE CONTEXT The device context provides the essential drawing tools and the platform to draw. It helps to draw the text, shapes, lines etc. To create the device context, the

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