VB.NET Truncate Example – Code Sample Syntax
VB.NET Truncate Example – Code Sample Syntax
Purpose: – Illustrates using VB.NET Truncate Code Example.
Purpose:
takes a decimal or double as input parameter1
and returns the number truncated without the
fractional decimals.
Syntax:
1. Truncate(decimal)
2. Truncate(double)
1. Truncate(decimal)
2. Truncate(double)
Parameters | Description | decimal | Any valid System.Decimal data type number double – any valid System.Double data type. Parameter1 specifies the number to be Truncated |
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Result Data Type | Description | decimal or double | depends on data type of parameter1. It is decimal, if parameter1 is decimal. If parameter1 is double, result is double. |
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Step 1: Click Visual Basic to Cut-n-paste code into clsTruncate.vb
Imports System.Math Public Class clsTruncate Public Sub Main() '******************************************************************************** ' Purpose: takes a decimal or double as input parameter1 ' and returns the number truncated without the ' fractional decimals. ' ' Syntax: 1. Truncate(decimal) ' 2. Truncate(double) ' ' Parameter1: decimal - Any valid System.Decimal data type number ' double - any valid System.Double data type. ' Parameter1 specifies the number to be Truncated ' ' Result: decimal or double - depends on data type ' of parameter1. It is decimal, if parameter1 is ' decimal. If parameter1 is double, result is double. ' '******************************************************************************** ' This example is from http://idealprogrammer.com Console.WriteLine("Example #1: Truncate(decimal)") Console.WriteLine("Truncate(3.5) = {0}", Truncate(3.5)) ' Returns 3 'write blank line to make output easier to read Console.WriteLine() Console.WriteLine("Example #2: Truncate(double)") Dim myDouble As Double = 6.5 Console.WriteLine("Truncate(myDouble) = {0}", _ Truncate(myDouble)) ' Returns 6 'write blank line to make output easier to read Console.WriteLine() Console.WriteLine("Example #3: Truncate(decimal)") Console.WriteLine("Truncate(0.9) = {0}", _ Truncate(0.9)) ' Returns 0 'Prevent console from closing before you press enter Console.ReadLine() End Sub End Class |
Step 2: Click Visual Basic to Cut-n-paste code into Module1.vb
Module Module1 Sub Main() Dim myclsTruncate As New clsTruncate myclsTruncate.Main() End Sub End Module |
Prerequistes:
- Install Visual Basic (Express or Standard Edition)
- Install SQL Server Express
- Download Northwind and pubs Database
- Attach Northwind Database to Databases in Sql Express
- Attach pubs Database to Databases in Sql Express
Notes:
- Console Application is used to simplify things, but Windows Forms or Web Forms could also be used
- You can build a library of syntax examples by using same project over and over and just commenting out what you do not want to execute in Module1.vb
Instructions:
- Use Visual Basic 2010 Express or Standard Edition
- Create new project;
- Click File/New Project
- Select Console Application Template
- Select Visual Basic for Language
- name of project could be VBNET_Syntax.
- Add New folder named “Functions”
- Right-click project name in solution explorer;
- add new folder;
- name of folder could be: Functions
- Add New subfolder named “MathFunctions”
- Right-click Functions folder in solution explorer;
- add new folder;
- name of folder could be: MathFunctions
- Add Class Named clsTruncate to MathFunctions folder
- Right-click MathFunctions folder;
- add new item;
- Select class
- Class name could be clsTruncate
- Click on Visual Basic in code in step 1 above to copy code into clsTruncate.vb
- Click on Visual Basic in code in step 2 above to copy code into Module1.vb
- Click green arrow or press F5 to run program