VB.NET Left() – Code Sample Syntax Example
VB.NET Left() – Code Sample Syntax Example
Purpose: – Illustrates using VB.NET Left() Code Example.
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 “StringManipulation”
- Right-click project name in solution explorer;
- add new folder;
- name of folder could be: StringManipulation
- Add Class Named clsLeft to StringManipulation folder
- Right-click StringManipulation folder;
- add new item;
- Select class
- Class name could be clsLeft
- Click on copy code in code below to copy code into clsLeft.vb
- Click on copy code in second set of code below to copy code into Module1.vb
- Click green arrow or press F5 to run program
Step 1: Use Copy Code to Cut-n-paste code into clsLeft.vb
Public Class clsLeft Public Sub Main() '**************************************************************************************** ' Purpose: Returns a string containing a specified number of characters from the left ' side of a string. ' ' Syntax: Left(str As String, Length As Integer) As String ' ' str - Required - String expression from which characters will be returned. ' Length - Required - Specifies number of characters to return. '**************************************************************************************** Console.WriteLine("Example #1: Left(str As String, Length As Integer) As String") Console.WriteLine(Left("Ideal Programmer", 5)) ' Returns Ideal 'write blank line to make output easier to read Console.WriteLine() 'Prevent console from closing before you press enter Console.ReadLine() End Sub End Class |
Step 2: Use View Plain to Cut-n-paste code into Module1.vb
Module Module1 Sub Main() Dim myclsLeft As New clsLeft myclsLeft.Main() End Sub End Module |