<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<!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>LINQ demo</title>
<style type="text/css">
fieldset
{
width:500px;
padding:0px 0px 20px 20px;
}
legend
{
padding:20px 0px 20px 20px;
}
table
{
width:400px;
}
</style>
</head>
<body>
<form id="form1" runat="server">
<div>
<fieldset>
<legend>Read All Department</legend>
<asp:GridView ID="gridviewDept" runat="server">
</asp:GridView>
</fieldset>
</div>
<div>
<fieldset>
<legend>Read All Employee</legend>
<asp:GridView ID="gridEmp" runat="server">
</asp:GridView>
</fieldset>
</div>
</form>
</body>
</html>
using System;
using System.Linq;
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
DataClassesDataContext ctx = new DataClassesDataContext();
gridviewDept.DataSource = ctx.GetTable<Department>().ToList();
gridviewDept.DataBind();
var data = from dep in ctx.GetTable<Department>()
join emp in ctx.GetTable<Employee>()
on dep.Id equals emp.Department_Id
select new { emp.Id, emp.EmployeeName, emp.Salary, dep.DepartmentName };
gridEmp.DataSource = data.ToList();
gridEmp.DataBind();
}
}
}
Go
Create database softwarekaffee
Go
use softwarekaffee
Go
create table Department
(
Id int identity primary key,
DepartmentName nvarchar(30)
)
Insert Into Department Values ('Sales');
Insert Into Department Values ('Production');
Insert Into Department Values ('Purchase');
Insert Into Department Values ('Stock');
Go
create table Employee
(
Id int identity primary key,
EmployeeName nvarchar(30),
Salary decimal(7,2),
Department_Id int references Department(Id)
)
Insert Into Employee Values ('Kaushik',41000,1);
Insert Into Employee Values ('Rahul',25000,2);
Insert Into Employee Values ('Sumit',26000,3);
Insert Into Employee Values ('Ravi',40000,4);
Insert Into Employee Values ('Rajeev',41000,1);
Insert Into Employee Values ('Amit',25000,2);
Insert Into Employee Values ('Gautam',26000,3);
Insert Into Employee Values ('Ranveer',40000,4);
Insert Into Employee Values ('Devendra',40000,4);
Insert Into Employee Values ('Sunil',40000,4);
Insert Into Employee Values ('Manas',41000,1);
Insert Into Employee Values ('Mishri Lal',25000,2);
Insert Into Employee Values ('Avinash',26000,3);
Insert Into Employee Values ('Alok',40000,4);
Insert Into Employee Values ('Pooja',41000,1);
Insert Into Employee Values ('Geeta',25000,2);
Insert Into Employee Values ('Lalita',26000,3);
Insert Into Employee Values ('Meenakshi',40000,4);
Insert Into Employee Values ('Rajendra',40000,4);
Insert Into Employee Values ('Sunita',40000,4);
Insert Into Employee Values ('Sandeep',26000,3);
Insert Into Employee Values ('Vinod',40000,4);
Insert Into Employee Values ('Remo',40000,4);
***********************************************************************
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