ConvertToUInt64 Example Syntax C-Sharp ASP.NET | C# ConvertToUInt64 | Source Code

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

ConvertToUInt64 Example Syntax C-Sharp ASP.NET | C# ConvertToUInt64 | Source Code

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


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


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)

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

Result Data Type Description
ULong 64-bit (8-byte) unsigned integer

Quick Example
Dim ULong1 As ULong = Convert.ToUInt64(1.33)
TextBox1.Text = ULong1.ToString() Returns 1

Step 1: Click on cs to Cut-n-paste code into ConvertToUInt64.aspx.cs

using System;
using System.IO;
using System.Data;
 
//********************************************************************************
// 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: Dim ULong1 As ULong = Convert.ToUInt64(1.33)
//        TextBox1.Text = ULong1.ToString() // Returns 1
//
//
//********************************************************************************
// This example is from http://idealprogrammer.com
 
 
 
partial class _ConvertToUInt64 : System.Web.UI.Page
{
 
    protected void Page_Load(object sender, System.EventArgs e)
    {
 
        Label1.Text = "Example #1: 	 Convert.ToUInt64(1.33) ";
 
        ulong ULong1 = Convert.ToUInt64(1.33);
 
        TextBox1.Text = ULong1.ToString(); // Returns 1
 
        Label2.Text = "Example #2: 	Convert.ToUInt64(3.4) ";
 
        ulong ULong2 = Convert.ToUInt64(3.4);
 
        TextBox2.Text = ULong2.ToString(); // Returns 3
 
        Label3.Text = "Example #3: 	Convert.ToUInt64(5.5)";
 
        ulong ULong3 = Convert.ToUInt64(5.5);
 
        TextBox3.Text = ULong3.ToString(); // Returns 6
 
 
    }
 
 
}

Step 2: Click on XML to Cut-n-paste code into ConvertToUInt64.aspx

< %@ Page Language="VB" AutoEventWireup="false" CodeFile="ConvertToUInt64.aspx.cs" Inherits="_ConvertToUInt64" %>
 
< !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 ConvertToUInt64
  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 ConvertToUInt64 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 ConvertToUInt64
  7. Click on cs in step 1 at the top of this page to copy code into code-behind ConvertToUInt64.aspx.cs
  8. Click on XML in step 2 above to copy code into web form ConvertToUInt64.aspx
  9. Right-click on ConvertToUInt64.aspx in solution explorer and select view in browser

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