Posted by : Anwar Hossain
Category : How to use LINQ in ASP.NET C#

How to select Top row in LINQ using ASP.NET C#

Dear viewers I will show how to Select Top row in LINQ using ASP.NET C#.I have shown a very simple example to select top row from a list. After creating a collection of student list a textbox and a submit button has been taken to submit to take expected row from student list .After Querying data LINQ Take method can be used to take expected row.

Select Top 10 row in LINQ


<html xmlns="">
<head id="Head1" runat="server">
  <style type="text/css">
  color: #336600;
  color: #99CC00;
  <form id="form1" runat="server">
  <table width="100%">
  <td colspan="3">
  <h2 class="style4">LINQ Select Top Row Example</h2></td>
  <td width="260" class="style1">
  <strong>Enter your Expected row number
  <td width="10">
  <asp:TextBox ID="txtContactsSearch" runat="server"></asp:TextBox>
  <asp:Button ID="btnSubmit" runat="server" Text="Search" OnClick="btnSubmit_Click" />
  <td width="260">
   <td width="10">
  <td colspan="3">
  <asp:GridView ID="gvLikeOperator" runat="server" AutoGenerateColumns="False" CellPadding="4"
  ForeColor="#333333" GridLines="None" Width="40%">
  <AlternatingRowStyle BackColor="White" />
  <asp:BoundField DataField="StudentName" HeaderText="Student Name" ItemStyle-HorizontalAlign="Center">
  <ItemStyle HorizontalAlign="Center" />
  <EditRowStyle BackColor="#7C6F57" />
  <FooterStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />
  <HeaderStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />
  <PagerStyle BackColor="#666666" ForeColor="White" HorizontalAlign="Center" />
  <RowStyle BackColor="#E3EAEB" />
  <SelectedRowStyle BackColor="#C5BBAF" Font-Bold="True" ForeColor="#333333" />
  <SortedAscendingCellStyle BackColor="#F8FAFA" />
  <SortedAscendingHeaderStyle BackColor="#246B61" />
  <SortedDescendingCellStyle BackColor="#D4DFE1" />
  <SortedDescendingHeaderStyle BackColor="#15524A" />


using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data.Linq.SqlClient;
public partial class LinqSelectTop : System.Web.UI.Page
  protected void Page_Load(object sender, EventArgs e)
  protected void btnSubmit_Click(object sender, EventArgs e)
  if (txtContactsSearch.Text.Trim() != string.Empty)
  var data = (from m in GetStudentList()
  select m).Take(Convert.ToInt32(txtContactsSearch.Text.Trim()));
  gvLikeOperator.DataSource = data;
  private List<Student> GetStudentList()
  List<Student> StudentStudents = new List<Student>{
  new Student{StudentID=1,  StudentName="Amin"},
  new Student{StudentID=2,  StudentName="Alomgir"},
  new Student{StudentID=3,  StudentName="Ashikur Rahman"},
  new Student{StudentID=4,  StudentName="Shamim Ahmed"},
  new Student{StudentID=5,  StudentName="Amolash"},
  new Student{StudentID=6,  StudentName="Alum"},
  new Student{StudentID=7,  StudentName="Abil"},
  new Student{StudentID=8,  StudentName="Enamul"},
  new Student{StudentID=9,  StudentName="Nahid"},
  new Student{StudentID=10,  StudentName="Asraf"},
  new Student{StudentID=11,  StudentName="Asfaq"},
  new Student{StudentID=12,  StudentName="kbil"},
  new Student{StudentID=13,  StudentName="Masum"},
  new Student{StudentID=14,  StudentName="Nasid"},
  new Student{StudentID=15,  StudentName="Babu"},
  new Student{StudentID=16,  StudentName="Titu"}
  return StudentStudents;
  public class Student
  public int StudentID { get; set; }
  public string StudentName { get; set; }

Out Put


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