Trim() Example Syntax VB.NET ASP.NET | Trim() | Source Code

Posted by on Sunday, March 6, 2011 · Leave a Comment 

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

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

 *** 1. Download Source Code *** 
VB.NET Syntax StringManipulation Trim 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. Check back often to download the latest version of the project with even more code samples.

 *** 2. Trim Syntax *** 


Purpose:
Returns a string with leading and trailing spaces removed.


Syntax:
Trim(value)

Parameters Description
value Required – string that you want to trim

Result Data Type Description
string Returns a string with leading and trailing spaces removed.


 *** 3. Trim – Quick Example *** 
Dim strField As String = ” This “
TextBox1.Text = “[” + Trim(strField) + “]” ‘Returns [This] with spaces removed

 *** 4. Trim – Full Example *** 

Trim Example Output Screenshot


VB.NET Syntax StringManipulation Trim screenshot


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

Imports System
Imports System.IO
Imports System.Data
 
' This example is from http://idealprogrammer.com
' It shows how you can use Trim syntax in VB.NET ASP.NET
 
'****************************************************************************************
' Purpose: Returns a string with leading and trailing spaces removed. 
'
' Syntax: 	Trim(value)
'
' Parameter1: value - Required - string that you want to trim
'
' Result: string -  Returns a string with leading and trailing spaces removed.  
'
' Quick Example:      Dim strField As String = " This "
' TextBox1.Text = "[" + Trim(strField) + "]" 'Returns [This] with spaces removed
'
'****************************************************************************************
 
Partial Class _Trim
    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: Trim(value) "
 
        Dim strField As String = " This "
 
        ' Return Uppercase THIS IS A TEST STRING
        TextBox1.Text = "[" + Microsoft.VisualBasic.Trim(strField) + "]" 'Returns [This] with spaces removed
 
 
 
 
    End Sub
End Class

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

< %@ Page Language="VB" AutoEventWireup="false" CodeFile="Trim.aspx.vb" Inherits="_Trim" %>
 
< !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 Trim
  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 Trim 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 Trim
  5. Click on Visual Basic in step 1 at the top of this page to copy code into code-behind Trim.aspx.vb
  6. Click on XML in step 2 above to copy code into web form Trim.aspx
  7. Right-click on Trim.aspx in solution explorer and select view in browser

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