C-Sharp ConvertToUInt64 Example – Code Sample Syntax
C-Sharp ConvertToUInt64 Example – Code Sample Syntax
Purpose: – Illustrates using C-Sharp ConvertToUInt64 Code Example.
Purpose:
Converts numbers into ULong data type – ULong data type is a
64-bit (8-byte) unsigned integer that can hold values from 0 to
18,446,744,073,709,551,615 (unsigned). Rounds fractions to whole numbers
Syntax:
Convert.ToUInt64(expression)
Convert.ToUInt64(expression)
Parameters | Description | expression | 0 to 0 through 18,446,744,073,709,551,615 (unsigned) – will throw Exception() if negative number is passed in. Rounds fractions to whole numbers |
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Result Data Type | Description | ULong | 64-bit (8-byte) unsigned integer |
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Quick Example | Convert.ToUInt64(1.33) // Returns 1 |
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Step 1: Click cs to Cut-n-paste code into clsConvertToUInt64.cs
using System; public class clsConvertToUInt64 { public void Main() { //******************************************************************************** // Purpose: Converts numbers into ULong data type - ULong data type is a // 64-bit (8-byte) unsigned integer that can hold values from 0 to // 18,446,744,073,709,551,615 (unsigned). Rounds fractions to whole numbers // // Syntax: Convert.ToUInt64(expression) // // Parameter1: expression - 0 to 0 through 18,446,744,073,709,551,615 (unsigned) - will throw // Exception() if negative number is passed in. Rounds fractions to whole numbers // // Result: ULong - 64-bit (8-byte) unsigned integer // // Quick Example: Convert.ToUInt64(1.33) // Returns 1 // //******************************************************************************** // This example is from http://idealprogrammer.com Console.WriteLine("Example #1: Convert.ToUInt64(1.33)"); ulong ULong1 = Convert.ToUInt64(1.33); Console.WriteLine(ULong1); // Returns 1 //write blank line to make output easier to read Console.WriteLine(); Console.WriteLine("Example #2: Convert.ToUInt64(3.4)"); ulong ULong2 = Convert.ToUInt64(3.4); Console.WriteLine(ULong2); // Returns 3 //write blank line to make output easier to read Console.WriteLine(); Console.WriteLine("Example #3: Convert.ToUInt64(5.5)"); ulong ULong3 = Convert.ToUInt64(5.5); Console.WriteLine(Convert.ToUInt64(ULong3)); // 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 myclsConvertToUInt64 As New clsConvertToUInt64 myclsConvertToUInt64.Main() End Sub End Module |
Prerequistes:
- Install C-Sharp (Express or Standard Edition)
- Install SQL Server Express
- Download Northwind and pubs Database
- Attach Northwind Database to Databases in Sql Express
- 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:
- Use C-Sharp 2010 Express or Standard Edition
- Create new project;
- Click File/New Project
- Select Console Application Template
- Select C-Sharp for Language
- name of project could be C-Sharp_Syntax.
- Add New folder named “Functions”
- Right-click project name in solution explorer;
- add new folder;
- name of folder could be: Functions
- Add New subfolder named “ConversionFunctions”
- Right-click Functions folder in solution explorer;
- add new folder;
- name of folder could be: ConversionFunctions
- Add New subfolder named “TypeConversionFunctions”
- Right-click ConversionFunctions folder in solution explorer;
- add new folder;
- name of folder could be: TypeConversionFunctions
- Add Class Named clsConvertToUInt64 to TypeConversionFunctions folder
- Right-click TypeConversionFunctions folder;
- add new item;
- Select class
- Class name could be clsConvertToUInt64
- Click on cs in code in step 1 above to copy code into clsConvertToUInt64.cs
- Click on cs in code in step 2 above to copy code into Module1.cs
- Click green arrow or press F5 to run program