santosh-asp tutorial

Using the Generation operator

The Generation operators used for generate sequence. The Generation operators are Range, Repeat and Empty.

Now, we add the Default.aspx page and write the following code:

  

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
        <center> 
    <div>
        <h1>Using the Aggregate operators</h1>
        <asp:ListBox ID="lbDetail" runat="server" Height="350px" Width="500px"></asp:ListBox> <br /> <br />
        <asp:Button ID="btnDisplayRecord" runat="server" Text="Display Record" Font-Bold="true" OnClick="btnDisplayRecord_Click" />
    
    </div>
            </center>
    </form>
</body>
</html>

Now, double click on Display Record button and write the following code:-

  

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Xml.Linq;
public partial class _Default : System.Web.UI.Page
{
    protected void Page_Load(object sender, EventArgs e)
    {

    }    
    protected void btnDisplayRecord_Click(object sender, EventArgs e)
    {
        lbDetail.Items.Clear();
        var query = from q in Enumerable.Range(1, 30) select new { Number = q, oddEven = q % 2 == 1 ? "odd" : "even" };

        foreach (var number in query)
        {
            lbDetail.Items.Add("The Number=" + number.Number + number.oddEven);
        }       
    }
}

Now run the application and click on Display Record button and get output.