VB.NET Join() – Code Sample Syntax Example

VB.NET Join Example – Code Sample Syntax

Abstract: – Illustrates using .

 *** 1. Download Source Code *** 

VB.NET Syntax StringManipulation Join download Download Source Code for All VB Console Examples in One Project

 *** 2. Join Syntax *** 


Purpose:
Returns a string created by joining a number of substrings contained in an array.


Syntax:
Join(SourceArray(), Delimiter)

Parameters Description
SourceArray One-dimensional array containing substrings to be joined.
Delimiter Optional. Any string, used to separate
the substrings in the returned string. If omitted, the space
character (” “) is used. If Delimiter is a zero-length string
(“”) or Nothing, all items in the list are concatenated
with no delimiters.

Result Data Type Description
string Returns a string created by joining a number of
substrings contained in an array.


 *** 3. Join – Quick Example *** 

Dim arrayJoinExample() As String = {“Apples”, “Oranges”, “Strawberries”}
Console.WriteLine(Join(arrayJoinExample, “!”)) ‘Returns Apples!Oranges!Strawberries

 *** 4. Join – Full Example *** 

Join Example Output Screenshot


VB.NET Syntax StringManipulation Join screenshot


Step 1: Click Visual Basic to Cut-n-paste code into clsJoin.vb

Public Class clsJoin
 
    Public Sub Main()
 
 
        '****************************************************************************************
        ' Purpose:  Returns a string created by joining a number of substrings contained in an array.
        '
        ' Syntax: 	Join(SourceArray(), Delimiter)
        '
        ' Parameter1: SourceArray - One-dimensional array containing substrings to be joined.
        '
        ' Parameter2: Delimiter - Optional. Any string, used to separate 
        ' the substrings in the returned string. If omitted, the space 
        ' character (" ") is used. If Delimiter is a zero-length string 
        ' ("") or Nothing, all items in the list are concatenated 
        ' with no delimiters.
        '
        ' Result: string - Returns a string created by joining a number of 
        ' substrings contained in an array.
        '
        ' Quick Example:  Dim arrayJoinExample() As String = {"Apples", "Oranges", "Strawberries"}
        ' Console.WriteLine(Join(arrayJoinExample, "!")) 'Returns Apples!Oranges!Strawberries
        '
        '****************************************************************************************
 
 
        Console.WriteLine("Example #1: 	Join(String(), String) ")
 
        Dim arrayJoinExample() As String = {"Apples", "Oranges", "Strawberries"}
 
        Console.WriteLine(Join(arrayJoinExample, "!")) 'Returns Apples!Oranges!Strawberries
 
        '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: Click Visual Basic to Cut-n-paste code into Module1.vb

Module Module1
 
    Sub Main()
 
 
        Dim myclsJoin As New clsJoin
        myclsJoin.Main()
 
 
 
    End Sub
 
End Module

Prerequistes:

  1. Install Visual Basic (Express or Standard Edition)
  2. Install SQL Server Express
  3. Download Northwind and pubs Database
  4. Attach Northwind Database to Databases in Sql Express
  5. 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:
VB.NET Syntax StringManipulation Join

  1. Use Visual Basic 2010 Express or Standard Edition
  2. Create new project;
    • Click File/New Project
    • Select Console Application Template
    • Select Visual Basic for Language
    • name of project could be VBNET_Syntax.
  3. Add New folder named “StringManipulation”
    • Right-click project name in solution explorer;
    • add new folder;
    • name of folder could be: StringManipulation
  4. Add Class Named clsJoin to StringManipulation folder
    • Right-click StringManipulation folder;
    • add new item;
    • Select class
    • Class name could be clsJoin
  5. Click on Visual Basic in code in step 1 above to copy code into clsJoin.vb
  6. Click on Visual Basic in code in step 2 above to copy code into Module1.vb
  7. Click green arrow or press F5 to run program