CODE BEHIND FILE 
    
 
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 LinqEqualsExample : System.Web.UI.Page
 {
   protected void Page_Load(object sender, EventArgs e)
   {
   if (!IsPostBack)
   {
  
  
   gvLikeOperator.DataSource = GetStudentList();
   gvLikeOperator.DataBind();
   }
   }
   protected void btnSubmit_Click(object sender, EventArgs e)
   {
   if (txtStudentName.Text.Trim() != string.Empty)
   {
   var data = (from m in GetStudentList()
   where m.StudentName.Equals(txtStudentName.Text.Trim())
   select m);
   
   gvLikeOperator.DataSource = data;
   gvLikeOperator.DataBind();
   
   
   }
   }
  
   
   private List<Student> GetStudentList()
   {
  
   List<Student> StudentStudents = new List<Student>{
   new Student{StudentID=1,  StudentName="Amin", Number =55},
   new Student{StudentID=2,  StudentName="Alomgir" , Number =55},
   new Student{StudentID=3,  StudentName="Ashikur Rahman", Number =65},
   new Student{StudentID=4,  StudentName="Shamim Ahmed" , Number =55},
   new Student{StudentID=5,  StudentName="Amolash" , Number =95},
   new Student{StudentID=6,  StudentName="Alum" , Number =95},
   new Student{StudentID=7,  StudentName="Abil", Number =75},
   new Student{StudentID=8,  StudentName="Enamul", Number =95},
   new Student{StudentID=9,  StudentName="Nahid", Number =95},
   new Student{StudentID=10,  StudentName="Asraf", Number =95},
   new Student{StudentID=11,  StudentName="Asfaq", Number =85},
   new Student{StudentID=12,  StudentName="kbil", Number =95},
   new Student{StudentID=13,  StudentName="Masum", Number =95},
   new Student{StudentID=14,  StudentName="Nasid", Number =45},
   new Student{StudentID=15,  StudentName="Babu", Number =75},
   new Student{StudentID=16,  StudentName="Titu", Number =85}
   };
  
   return StudentStudents;
  
   }
  
   public class Student
   {
   public int StudentID { get; set; }
   public string StudentName { get; set; }
   public  int  Number{ get; set; }
   }
 }