C-Sharp FormatPercent Example | ASP.NET C# FormatPercent Syntax | Source Code| Source Code

Posted by on Friday, April 1, 2011 · Leave a Comment 

C-Sharp FormatPercent Example | ASP.NET C# FormatPercent Syntax | Source Code

Purpose: – Here is a that illustrates the .


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Step 1: Click on C# to Cut-n-paste code into FormatPercent.aspx.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
 
// This example is from http://idealprogrammer.com
// It shows how you can use FormatPercent syntax in C-Sharp 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. 
//****************************************************************************************
 
 
public partial class StringManipulation_FormatPercent : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {
        Label1.Text = "Example #1: 	FormatPercent (Expression," + " NumDigitsAfterDecimal," + " IncludeLeadingDigit," + " UseParensForNegativeNumbers," + " GroupDigits" + " ) As String ";
        double dblNumber = -5432.43;
 
        // Returns "(543,243.000%)".
        Label2.Text = Microsoft.VisualBasic.Strings.FormatPercent(dblNumber, 3, Microsoft.VisualBasic.TriState.UseDefault, Microsoft.VisualBasic.TriState.True, Microsoft.VisualBasic.TriState.True);
 
 
    }
}

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

< %@ Page Language="C#" AutoEventWireup="true" CodeFile="FormatPercent.aspx.cs" Inherits="StringManipulation_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>

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:
CS Syntax String Manipulation FormatPercent

  1. Use Visual Web Developer 2010
  2. Create new web site;
    • Click File/New Web Site
    • Select ASP.NET Website Template
    • Select C-Sharp for Language
    • name of Web Site could be CSharp_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 FormatPercent.aspx 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 FormatPercent.aspx
  5. Click on C-Sharp in step 1 at the top of this page to copy code into web form FormatPercent.aspx
  6. Click on XML in step 2 above to copy code into code-behind FormatPercent.aspx.cs
  7. Right-click on FormatPercent.aspx in solution explorer and select view in browser

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