VB.NET Insert() – Code Sample

VB.NET Insert Example – Code Sample Syntax

Abstract: – Illustrates using .

 *** 1. Download Source Code *** 

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

 *** 2. Insert Syntax *** 


Purpose:
Returns a string with the specified string inserted beginning at
the specified position.


Syntax:
string.Insert(startIndex, stringtoinsert)

Parameters Description
string Required – string that you want to insert something into
startIndex Optional. specifies where to start looking. Zero-based.
stringtoinsert Required – string that you are trying to
insert into parameter1

Result Data Type Description
string Returns a string with the specified string inserted beginning at
the specified position.


 *** 3. Insert – Quick Example *** 

Dim strInsertExample As String = “This is a test string”
Dim intIndex As Integer = 0
‘ First find position of word test
intIndex = strInsertExample.IndexOf(“test”)
‘ Insert “simple” before “test”
Console.WriteLine(strInsertExample.Insert(intIndex, “simple “))

 *** 4. Insert – Full Example *** 

Insert Example Output Screenshot


VB.NET Syntax StringManipulation Insert screenshot


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

Public Class clsInsert
 
    Public Sub Main()
 
 
        '****************************************************************************************
        ' Purpose:  Returns a string with the specified string inserted beginning at 
        ' the specified position.
        '
        ' Syntax: 	string.Insert(startIndex, stringtoinsert)
        '
        ' Parameter1: string - Required - string that you want to insert something into
        '
        ' Parameter2: startIndex - Optional. specifies where to start looking. Zero-based.
        '
        ' Parameter3: stringtoinsert - Required - string that you are trying to 
        ' insert into parameter1
        '
        ' Result: string - Returns a string with the specified string inserted beginning at 
        ' the specified position.
        '
        ' Quick Example:    Dim strInsertExample As String = "This is a test string"
        ' Dim intIndex As Integer = 0
        ' ' First find position of word test
        ' intIndex = strInsertExample.IndexOf("test")
        ' ' Insert "simple" before "test"
        ' Console.WriteLine(strInsertExample.Insert(intIndex, "simple "))
        '
        '****************************************************************************************
 
        Console.WriteLine("Example #1: string.Insert(startIndex, stringtoinsert) ")
 
        Dim strInsertExample As String = "This is a test string"
        Dim intIndex As Integer = 0
 
        ' First find position of word test
        intIndex = strInsertExample.IndexOf("test")
 
        ' Insert "simple" before "test"
        Console.WriteLine(strInsertExample.Insert(intIndex, "simple "))
 
        '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 myclsInsert As New clsInsert
        myclsInsert.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 Insert

  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 clsInsert to StringManipulation folder
    • Right-click StringManipulation folder;
    • add new item;
    • Select class
    • Class name could be clsInsert
  5. Click on Visual Basic in code in step 1 above to copy code into clsInsert.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