VB.NET CByte – Code Sample Syntax Example
VB.NET CByte Example – Code Sample Syntax
Purpose: – Illustrates using VB.NET CByte Code Example.
Purpose:
Converts 0 to 255 unsigned (rounded) into byte data type
Syntax:
CByte(numeric expression)
CByte(numeric expression)
Parameters | Description | numeric expression | 0 to 255 |
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Result Data Type | Description | Byte | 0 to 255 unsigned and parameter1 is rounded |
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Step 1: Click Visual Basic to Cut-n-paste code into clsCByte.vb
Public Class clsCByte Public Sub Main() '**************************************************************************************** ' Purpose: Converts 0 to 255 unsigned (rounded) into byte data type ' ' Syntax: CByte(numeric expression) ' ' Parameter1: numeric expression - 0 to 255 ' ' Result: Byte - 0 to 255 unsigned and parameter1 is rounded ' '**************************************************************************************** ' This example is from http://idealprogrammer.com Console.WriteLine("Example #1: CByte(numeric expression)") Console.WriteLine(CByte(255)) ' Returns 255 'write blank line to make output easier to read Console.WriteLine() Console.WriteLine("Example #2: CByte(numeric expression)") Console.WriteLine(CByte(1.5)) ' Returns 2 '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 myclsCByte As New clsCByte myclsCByte.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 “ConversionFunctions”
- Right-click Functions folder in solution explorer;
- add new folder;
- name of folder could be: ConversionFunctions
- Add New subfolder named “TypeConversionFunctions”
- Right-click ConversionFunctions folder in solution explorer;
- add new folder;
- name of folder could be: TypeConversionFunctions
- Add Class Named clsCByte to TypeConversionFunctions folder
- Right-click TypeConversionFunctions folder;
- add new item;
- Select class
- Class name could be clsCByte
- Click on Visual Basic in code in step 1 above to copy code into clsCByte.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