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

#tit, anumberisprimeornot

anumberisprimeornot

How to replace the text from textbox to another., I''m doing a project on v...

I''m doing a project on vb.NET. I''m stuck with this place where I should replace the text to different characters from textbox1 to textbox2 without changing text in textbox1. For

Drawing, #questiontypes of lines and how to draw

#questiontypes of lines and how to draw

Variable length strings, Variable Length Strings: The Strings can be de...

Variable Length Strings: The Strings can be declared using As or $ as shown in the code below; the msg and msg1 are the two strings and they are assigned the values using '='.

Restricting the vocabulary - visual interface design, Restricting The Vocab...

Restricting The Vocabulary: The properly formed vocabulary is like an inverted pyramid. All easy to learn communication system follow this pattern. The canonical vocabulary in

Help context property, Sets or returns context ID for topic in Help File. I...

Sets or returns context ID for topic in Help File. If Help file is indicated in the VBScript Err Object HelpFile Property, the HelpContext property is utilized to display automatic

Software that is rude - basics of gui design, Software That Is Rude: T...

Software That Is Rude: The software warns the user for making the mistakes. The Message boxes pop up representing the mistake and the user will have to click the OK or CANCEL

Develop a web page for accepting information regarding stock, Develop a web...

Develop a web page that is used for accepting information regarding stocks. Make sure the form carry out the possible validations. The simple instance code below merely illustrates

Displaying the file without scrolling - document class, Displaying the file...

Displaying the file Without Scrolling: To display a file follow the steps as shown below: 1. Generate a SDI application. 2. Type the coding as shown in the Serialize els

Use of wm_size message - class wizard, Use of WM_SIZE Message: Wheneve...

Use of WM_SIZE Message: Whenever the WM_SIZE message is handled and the graphical objects on the output window will also change consequently to the output window. The functi

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