C-Sharp ConvertToSingle Example – Code Sample Syntax

C-Sharp ConvertToSingle Example – Code Sample Syntax

Purpose: – Illustrates using .

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
Convert.ToSingle(1.33) // Returns 1.33

Step 1: Click cs to Cut-n-paste code into clsConvertToSingle.cs

using System;
 
public class clsConvertToSingle
{
 
    public void Main()
    {
 
 
        //*****************************************************************************************
        // 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: Convert.ToSingle(1.33) // Returns 1.33
        //
        //****************************************************************************************
        // This example is from http://idealprogrammer.com
 
        Console.WriteLine("Example #1: 	Convert.ToSingle(expression)");
 
        float Single1 = Convert.ToSingle(1.33);
 
        Console.WriteLine(Single1); // Returns 1.33
 
        //write blank line to make output easier to read
        Console.WriteLine();
 
        Console.WriteLine("Example #2: 	Convert.ToSingle(expression)");
 
        float Single2 = Convert.ToSingle(-3.4);
 
        Console.WriteLine(Single2); // Returns -3.4
        //write blank line to make output easier to read
        Console.WriteLine();
 
        Console.WriteLine("Example #3: 	Convert.ToSingle(expression)");
 
        float Single3 = Convert.ToSingle(5.5);
 
        Console.WriteLine(Convert.ToSingle(Single3)); // Returns 5.5
 
        //Prevent console from closing before you press enter
        Console.ReadLine();
 
    }
 
}

Step 2: Click cs to Cut-n-paste code into Module1.cs

Module Module1
 
    Sub Main()
 
 
        Dim myclsConvertToSingle As New clsConvertToSingle
        myclsConvertToSingle.Main()
 
 
 
    End Sub
 
End Module

Prerequistes:

  1. Install C-Sharp (Express or Standard Edition)
  2. Install SQL Server Express
  3. Download Northwind and pubs Database
  4. Attach Northwind Database to Databases in Sql Express
  5. Attach pubs Database to Databases in Sql Express

Notes:

  • Console Application is used to simplify things, but Windows Forms or Web Forms could also be used
  • You can build a library of syntax examples by using same project over and over and just commenting out what you do not want to execute in Module1.cs

Instructions:
C-Sharp Syntax Functions ConversionFunctions ConvertToSingle

  1. Use C-Sharp 2010 Express or Standard Edition
  2. Create new project;
    • Click File/New Project
    • Select Console Application Template
    • Select C-Sharp for Language
    • name of project could be C-Sharp_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 ConversionFunctions folder in solution explorer;
    • add new folder;
    • name of folder could be: TypeConversionFunctions
  6. Add Class Named clsConvertToSingle to TypeConversionFunctions folder
    • Right-click TypeConversionFunctions folder;
    • add new item;
    • Select class
    • Class name could be clsConvertToSingle
  7. Click on cs in code in step 1 above to copy code into clsConvertToSingle.cs
  8. Click on cs in code in step 2 above to copy code into Module1.cs
  9. Click green arrow or press F5 to run program