You can generate random number using Random class. According to msdn library:
Random class instance . Next () : Following Code gives Non-negative integer number like 1 to further.
Random class instance . Next (Int32) : You can specify a number, which is maximum for generated output.
Random class instance . Next (Int32, Int32): You can specify minimum and maximum number in parameter, following output generated between specified argument.
Lets take an simple example
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>
<!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>Random Number</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="Label1" runat="server"></asp:Label>
<br />
<br />
<asp:Button ID="Button1" runat="server" Height="37px" onclick="Button1_Click"
Text="Random Number " />
</div>
</form>
</body>
</html>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class Default2 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
Random r1 = new Random();
string s = r1.Next(10, 100).ToString ();
Label1.Text = s;
}
}
Represents a pseudo-random number generator, a device that produces a sequence of numbers that meet certain statistical requirements for randomness.A Random class exists in System namespace, used to display pseudo-random numbers. The Class has many methods, such as Next() method. Overloaded Next method take different parameters such as zero argument, one argument and two argument.
Random class instance . Next () : Following Code gives Non-negative integer number like 1 to further.
Random class instance . Next (Int32) : You can specify a number, which is maximum for generated output.
Random class instance . Next (Int32, Int32): You can specify minimum and maximum number in parameter, following output generated between specified argument.
Application
- Mathematical CAPTCHA Design
- Kids Game.
Lets take an simple example
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default2.aspx.cs" Inherits="Default2" %>
<!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>Random Number</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:Label ID="Label1" runat="server"></asp:Label>
<br />
<br />
<asp:Button ID="Button1" runat="server" Height="37px" onclick="Button1_Click"
Text="Random Number " />
</div>
</form>
</body>
</html>
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
public partial class Default2 : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
}
protected void Button1_Click(object sender, EventArgs e)
{
Random r1 = new Random();
string s = r1.Next(10, 100).ToString ();
Label1.Text = s;
}
}
Code generate following output
.jpg "Computer Programming : TextBox WatermarkExtender control in Ajax with example")