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

Posted by on Monday, May 16, 2011 · Leave a Comment 

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

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


View Other C-Sharp ASP.NET Math Function Examples


Purpose:
Returns an integer indicating the sign of the
input parameter. The result is -1 if the input
parameter is less than one; 0 if the input is
zero; and 1 if the input is > 0

Syntax:
1. Sign(decimal)
2. Sign(double)
3. Sign(int16)
4. Sign(int32)
5. Sign(int64)
6. Sign(SByte)
7. Sign(Single)

Parameters Description
decimal Any valid System.Decimal data type number
2. double – any valid System.Double data type.
3. int16 – any valid System.Int16 data type.
4. int32 – any valid System.Int32 data type.
5. int64 – any valid System.Int64 data type.
6. SByte – any valid 8-bit SByte
7. Single – any valid single floating-point 32-bit number.

Result Data Type Description
Int32 Returns an integer indicating the sign of the
input parameter. The result is -1 if the input
parameter is less than one; 0 if the input is
zero; and 1 if the input is > 0

Quick Example
Sign(3.5) // Returns 1

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

using System;
using System.IO;
using System.Data;
 
 
//********************************************************************************
// Purpose: Returns an integer indicating the sign of the
// input parameter. The result is -1 if the input
// parameter is less than one; 0 if the input is
// zero; and 1 if the input is > 0
//
// Syntax: 	1. Sign(decimal)
// 2. Sign(double)
// 3. Sign(int16)
// 4. Sign(int32)
// 5. Sign(int64)
// 6. Sign(SByte)
// 7. Sign(Single)
//
// Parameter1: decimal - Any valid System.Decimal data type number
// 2. double - any valid System.Double data type.
// 3. int16 - any valid System.Int16 data type.
// 4. int32 - any valid System.Int32 data type.
// 5. int64 - any valid System.Int64 data type.
// 6. SByte - any valid 8-bit SByte
// 7. Single - any valid single floating-point 32-bit number.
//
//
// Result: Int32 - Returns an integer indicating the sign of the
// input parameter. The result is -1 if the input
// parameter is less than one; 0 if the input is
// zero; and 1 if the input is > 0
//
// Quick Example: Sign(3.5) // Returns 1
//
//********************************************************************************
// This example is from http://idealprogrammer.com
 
 
 
partial class _Sign : System.Web.UI.Page
{
 
    protected void Page_Load(object sender, System.EventArgs e)
    {
 
 
        Label1.Text = "Example #1: 	Sign(decimal)";
 
        TextBox1.Text = string.Format("Sign(3.5) = {0}", Math.Sign(3.5)); // Returns 1
 
 
        Label2.Text = "Example #2: 	Sign(double)";
        double myDouble = -6.5;
        TextBox2.Text = string.Format("Sign(myDouble) = {0}", Math.Sign(myDouble)); // Returns -1
 
 
        Label3.Text = "Example #3: 	Sign(int16)";
        Int16 myInt16 = 0;
 
 
        TextBox3.Text = string.Format("Sign(myInt16) = {0}", Math.Sign(myInt16)); // Returns 0
 
 
    }
 
 
}

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

< %@ Page Language="VB" AutoEventWireup="false" CodeFile="Sign.aspx.cs" Inherits="_Sign" %>
 
< !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 MathFunctions Sign
  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 “MathFunctions”
    • Right-click Functions folder in solution explorer;
    • add new folder;
    • name of folder could be: MathFunctions
  5. Add Web Form Named Sign to MathFunctions folder
    • Right-click MathFunctions folder;
    • add new item;
    • Select Web Form
    • Check place code behind in separate file
    • Web Form name could be Sign
  6. Click on cs in step 1 at the top of this page to copy code into code-behind Sign.aspx.cs
  7. Click on XML in step 2 above to copy code into web form Sign.aspx
  8. Right-click on Sign.aspx in solution explorer and select view in browser

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