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

Mr, want a visual basic code on Hungarian method

want a visual basic code on Hungarian method

Option explicit declaration - data types, Option Explicit Declaration: ...

Option Explicit Declaration: If the option explicit is used essentially then all the variables will have to be declared. Or else an error will be reported saying that the vari

Question, #question.algorithemtofindwhetheragivennumberisprime/not.

#question.algorithemtofindwhetheragivennumberisprime/not.

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

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

Cdatabase class - database application, Cdatabase Class: The CDataBase...

Cdatabase Class: The CDataBase class helps to connect to the data source. The Open member function opens a connection to the data source. CRecordset class is used for performi

Three models for user interface design, THREE MODELS FOR USER INTERFACE DES...

THREE MODELS FOR USER INTERFACE DESIGN   The 3 models for the user interface design are the implementation model, mental model &the manifest model. The Implementation Mod

How to, need general help in pseudo code

need general help in pseudo code

Associating images to toolbars - visual basic, Associating Images to Toolba...

Associating Images to Toolbars: 1. Add an Image list to your form from the tool box. 2. Pick the custom property of the image list. 3. Click the images tab. 4. Select

Do while loop statement, Do While Loop Statement : The statements conta...

Do While Loop Statement : The statements contained by the do...while loop block executes till the condition given in the while is true. The working of do...loop is elaborate

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