VB.NET CChar – Code Sample Syntax Example
VB.NET CChar Example – Code Sample Syntax
Purpose: – Illustrates using VB.NET CChar Code Example.
Description:
Converts Char or first character of string into Char data type
Syntax:
CChar(expression)
CChar(expression)
Parameters | Description | expression | char or string |
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Result Data Type | Description | Char | only first character is used when expression is string |
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Step 1: Click Visual Basic to Cut-n-paste code into clsCChar.vb
Public Class clsCChar Public Sub Main() '**************************************************************************************** ' Purpose: Converts Char or first character of string into Char data type ' ' Syntax: CChar(expression) ' ' Parameter1: expression - char or string ' ' Result: Char - only first character is used when expression is string ' '**************************************************************************************** ' This example is from http://idealprogrammer.com Console.WriteLine("Example #1: CChar(string)") Console.WriteLine(CChar("Test")) ' Returns T 'write blank line to make output easier to read Console.WriteLine() Console.WriteLine("Example #2: CChar(char)") Dim myChar As Char myChar = "A" Console.WriteLine(CChar(myChar)) ' Returns A '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 myclsCChar As New clsCChar myclsCChar.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 clsCChar to TypeConversionFunctions folder
- Right-click TypeConversionFunctions folder;
- add new item;
- Select class
- Class name could be clsCChar
- Click on Visual Basic in code in step 1 above to copy code into clsCChar.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