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

Description: Illustrates using InStrRev with Source Code Syntax Example in VB.NET ASP.NET.

Example Webform Code:

< %@ Page Language="VB" AutoEventWireup="false" CodeFile="InStrRev.aspx.vb" Inherits="InStrRev" %>
 
< !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:label ID="Label2" runat="server" Text="Label"></asp:label><br />
 
 
    </div>
    </form>
</body>
</html>

Example Code Behind:

Imports System
Imports System.IO
Imports System.Data
 
 
 
 
' This example is from http://idealprogrammer.com
' It shows how you can use InStrRev syntax in VB.NET ASP.NET
'****************************************************************************************
' Example #1: 	InStrRev(stringcheck,stringmatch,start,comparemethod) - returns integer
' of the position of the first occurrence of one string within another, starting from the
' right side of the string.
'
' stringcheck - Required. String expression being searched.
' stringmatch - Required. String expression being searched for.
' start - Optional. Numeric expression setting the one-based starting position for each 
' search, starting from the left side of the string. If Start is omitted then –1 is used, 
' meaning the search begins at the last character position. Search then proceeds from right 
' to left.
' comparemethod - Optional - integer indicating binary or text
'****************************************************************************************
 
Partial Class InStrRev
    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: 	InStrRev(stringcheck,stringmatch,start,comparemethod) "
 
         Dim strString1 As String = "Hello World"
 
 
 
 
        Label2.Text = Microsoft.VisualBasic.InStrRev(strString1, "l").ToString() 'Returns 10
 
 
    End Sub
End Class

Example Connection String: