VB.NET ASP.NET Join() Source Code Syntax Example
Posted by asp.net videos on Monday, February 28, 2011 · Leave a Comment
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Join Example Syntax VB.NET ASP.NET | Join | Source Code
Summary: – Illustrates using Join with Source Code Syntax Example in VB.NET ASP.NET.
*** 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
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 |
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> |
< %@ 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:
- Install Visual Web Developer 2010
- Install SQL Server Express
- Download Northwind and Pubs Databases
- Attach Northwind Database to Databases in Sql Express
- 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:
- Use Visual Web Developer 2010
- 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.
- Add New folder named “StringManipulation”
- Right-click project name in solution explorer;
- add new folder;
- name of folder could be: StringManipulation
- 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
- Click on Visual Basic in step 1 at the top of this page to copy code into code-behind Join.aspx.vb
- Click on XML in step 2 above to copy code into web form Join.aspx
- Right-click on Join.aspx in solution explorer and select view in browser
|
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