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

Posted by on Tuesday, May 17, 2011 · Leave a Comment 

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

Summary: – Illustrates using with in C-Sharp ASP.NET.


View Other C-Sharp ASP.NET Type Conversion Function Examples


Purpose:
Converts positive and negative numbers into Single data type

Syntax:
Convert.ToSingle(expression)

Parameters Description
expression -3.402823E+38 through -1.401298E-45 for negative values; 1.401298E-45
through 3.402823E+38 for positive values

Result Data Type Description
Single 32-bit (4-byte) single-precision floating-point numbers

Quick Example
Dim Single1 As Single = Convert.ToSingle(1.33)
TextBox1.Text = Single1.ToString() Returns 1.33

Step 1: Click on cs to Cut-n-paste code into ConvertToSingle.aspx.cs

using System;
using System.IO;
using System.Data;
 
//*****************************************************************************************
// Purpose: Converts positive and negative numbers into Single data type
// 
// Syntax: 	Convert.ToSingle(expression)
// 
// Parameter1: expression -  -3.402823E+38 through -1.401298E-45 for negative values; 1.401298E-45 
// through 3.402823E+38 for positive values
//
// Result: Single - 32-bit (4-byte) single-precision floating-point numbers  
//
// Quick Example: Dim Single1 As Single = Convert.ToSingle(1.33)
//        TextBox1.Text = Single1.ToString() // Returns 1.33
//
//
//****************************************************************************************
// This example is from http://idealprogrammer.com
 
 
partial class _ConvertToSingle : System.Web.UI.Page
{
 
	protected void Page_Load(object sender, System.EventArgs e)
	{
 
		Label1.Text = "Example #1: 	 Convert.ToSingle(1.33) ";
 
		float Single1 = Convert.ToSingle(1.33);
 
		TextBox1.Text = Single1.ToString(); // Returns 1.33
 
		Label2.Text = "Example #2: 	Convert.ToSingle(-3.4) ";
 
		float Single2 = Convert.ToSingle(-3.4);
 
		TextBox2.Text = Single2.ToString(); // Returns -3.4
 
		Label3.Text = "Example #3: 	Convert.ToSingle(5.5)";
 
		float Single3 = Convert.ToSingle(5.5);
 
		TextBox3.Text = Single3.ToString(); // Returns 5.5
 
 
	}
 
 
}

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

< %@ Page Language="VB" AutoEventWireup="false" CodeFile="ConvertToSingle.aspx.cs" Inherits="_ConvertToSingle" %>
 
< !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:

C-Sharp ASP.NET Syntax Functions ConversionFunctions ConvertToSingle
  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 “Functions”
    • Right-click project name in solution explorer;
    • add new folder;
    • name of folder could be: Functions
  4. Add New subfolder named “ConversionFunctions”
    • Right-click Functions folder in solution explorer;
    • add new folder;
    • name of folder could be: ConversionFunctions
  5. Add New subfolder named “TypeConversionFunctions”
    • Right-click Functions folder in solution explorer;
    • add new folder;
    • name of folder could be: TypeConversionFunctions
  6. Add Web Form Named ConvertToSingle to TypeConversionFunctions folder
    • Right-click TypeConversionFunctions folder;
    • add new item;
    • Select Web Form
    • Check place code behind in separate file
    • Web Form name could be ConvertToSingle
  7. Click on cs in step 1 at the top of this page to copy code into code-behind ConvertToSingle.aspx.cs
  8. Click on XML in step 2 above to copy code into web form ConvertToSingle.aspx
  9. Right-click on ConvertToSingle.aspx in solution explorer and select view in browser

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