VB.NET ASP.NET Join() Source Code Syntax Example

Join Example Syntax VB.NET ASP.NET | Join | Source Code

Summary: – Illustrates using with in VB.NET ASP.NET.

 *** 1. Download Source Code *** 

VB.NET Syntax StringManipulation Join download Download Source Code for All VB ASP.NET Examples in One Project – source code for hundreds of VB.NET ASP.NET examples neatly organized in a single 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”}
TextBox1.Text = Join(arrayJoinExample, “!”) ‘Returns Apples!Oranges!Strawberries

 *** 4. Join – Full Example *** 

Join Example Output Screenshot


VB.NET Syntax StringManipulation Join screenshot


Step 1: Click on Visual Basic to Cut-n-paste code into Join.aspx.vb

Imports System
Imports System.IO
Imports System.Data
 
 
 
 
' This example is from http://idealprogrammer.com
' It shows how you can use Join syntax in VB.NET ASP.NET
'****************************************************************************************
' 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"}
' TextBox1.Text = Join(arrayJoinExample, "!") 'Returns Apples!Oranges!Strawberries
'
'****************************************************************************************
 
Partial Class _Join
    Inherits System.Web.UI.Page
 
    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
 
        Label1.Text = "Example #1: 	Join(String(), String) "
 
        Dim arrayJoinExample() As String = {"Apples", "Oranges", "Strawberries"}
 
 
 
 
        TextBox1.Text = Microsoft.VisualBasic.Join(arrayJoinExample, "!") 'Returns Apples!Oranges!Strawberries
 
 
    End Sub
End Class

Step 2: Click on XML to Cut-n-paste code into Join.aspx

< %@ Page Language="VB" AutoEventWireup="false" CodeFile="Join.aspx.vb" Inherits="_Join" %>
 
< !DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
 
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <h1><asp:label ID="Label1" runat="server" Text="Label"></asp:label> </h1>
         <asp:textbox ID="TextBox1" runat="server"></asp:textbox><br />
          <h1><asp:label ID="Label2" runat="server" Text="Label"></asp:label> </h1>
         <asp:textbox ID="TextBox2" runat="server"></asp:textbox><br />
          <h1><asp:label ID="Label3" runat="server" Text="Label"></asp:label> </h1>
         <asp:textbox ID="TextBox3" runat="server"></asp:textbox><br />
 
 
 
    </div>
    </form>
</body>
</html>

Prerequistes:

  1. Install Visual Web Developer 2010
  2. Install SQL Server Express
  3. Download Northwind and Pubs Databases
  4. Attach Northwind Database to Databases in Sql Express
  5. Attach pubs Database to Databases in Sql Express

Notes:

  • You can build your own library of syntax examples by using same web site over and over and just add new web forms to it.

Instructions:

VB.NET ASP.NET Syntax StringManipulation Join
  1. Use Visual Web Developer 2010
  2. Create new web site;
    • Click File/New Web Site
    • Select ASP.NET Website Template
    • Select Visual Basic for Language
    • name of Web Site could be VBNET_ASPNET_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 Web Form Named Join to StringManipulation folder
    • Right-click StringManipulation folder;
    • add new item;
    • Select Web Form
    • Check place code behind in separate file
    • Web Form name could be Join
  5. Click on Visual Basic in step 1 at the top of this page to copy code into code-behind Join.aspx.vb
  6. Click on XML in step 2 above to copy code into web form Join.aspx
  7. Right-click on Join.aspx in solution explorer and select view in browser