C-Sharp ConvertToInt64 Example – Code Sample Syntax

C-Sharp ConvertToInt64 Example – Code Sample Syntax

Purpose: – Illustrates using C-Sharp ConvertToInt64 Code Example.

Purpose:
Converts positive and negative numbers into Long data type

Step 1: Click cs to Cut-n-paste code into clsConvertToInt64.cs

using System;
 
public class clsConvertToInt64
{
 
    public void Main()
    {
 
 
        //****************************************************************************************
        // Purpose: Converts positive and negative numbers into Long data type
        //
        // Syntax: 	Convert.ToInt64(expression)
        //
        // Parameter1: expression - -9,223,372,036,854,775,808 through 9,223,372,036,854,775,807; fractional parts are rounded.
        //
        // Result: Long - returns 64-bit (8-byte) integers 
        //
        // Quick Example: Convert.ToInt64(1.33) // Returns 1
        //
        //****************************************************************************************
        // This example is from http://idealprogrammer.com
 
        Console.WriteLine("Example #1: 	Convert.ToInt64(1.33)");
 
        long Long1 = Convert.ToInt64(1.33);
 
        Console.WriteLine(Long1); // Returns 1
 
        //write blank line to make output easier to read
        Console.WriteLine();
 
        Console.WriteLine("Example #2: 	Convert.ToInt64(-3.4)");
 
        long Long2 = Convert.ToInt64(-3.4);
 
        Console.WriteLine(Long2); // Returns -3
        //write blank line to make output easier to read
        Console.WriteLine();
 
        Console.WriteLine("Example #3: 	Convert.ToInt64(5.5)");
 
        long Long3 = Convert.ToInt64(5.5);
 
        Console.WriteLine(Convert.ToInt64(Long3)); // Returns 6
 
        //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 myclsConvertToInt64 As New clsConvertToInt64
        myclsConvertToInt64.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:

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 clsConvertToInt64 to TypeConversionFunctions folder
   • Right-click TypeConversionFunctions folder;
   • add new item;
   • Select class
   • Class name could be clsConvertToInt64
7. Click on cs in code in step 1 above to copy code into clsConvertToInt64.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