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

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

Example Webform Code:

< %@ Page Language="VB" AutoEventWireup="false" CodeFile="FormatPercent.aspx.vb" Inherits="FormatPercent" %>
 
< !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 FormatPercent syntax in VB.NET ASP.NET
'****************************************************************************************
' Syntax: 	FormatPercent (Expression As Object, _
' NumDigitsAfterDecimal As Integer, _
' IncludeLeadingDigit As TriState, _
' UseParensForNegativeNumbers As TriState, _
' GroupDigits As TriState _
' ) As String
'
' Returns an expression formatted as a percentage (that is, multiplied by 100) with 
' a trailing % character.
' 
' Expression - Required - Expression to be formatted
' NumDigitsAfterDecimal - Optional - Numeric value indicating how many places are displayed
' to the right of the decimal. Default value is –1, which indicates that the computer's 
' regional settings are used.
' IncludeLeadingDigit - Optional. TriState enumeration that indicates whether or not a 
' leading zero is displayed for fractional values. 
' UseParensForNegativeNumbers - Optional. TriState enumeration that indicates whether 
' or not to place negative values within parentheses. 
' GroupDigits - Optional. TriState enumeration that indicates whether or not numbers are
' grouped using the group delimiter specified in the computer's regional settings. 
'****************************************************************************************
 
Partial Class FormatPercent
    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: 	FormatPercent (Expression," & _
        " NumDigitsAfterDecimal," & _
        " IncludeLeadingDigit," & _
         " UseParensForNegativeNumbers," & _
        " GroupDigits" & _
         " ) As String "
        Dim dblNumber As Double = -5432.43
 
        ' Returns "(543,243.000)".
        Label2.Text = Microsoft.VisualBasic.FormatPercent(dblNumber, 3, , TriState.True, TriState.True)
 
    End Sub
End Class

Example Connection String: