*********************************************************************************
/*Add Stylesheet in your application names StyleSheet.css*/
body {}
.gridView{width:100%;background:#ffffff;border:1px solid #476db6; border-collapse:separate;}
.gridView th{border:0px;background:#a7b7fe;color:#000000;text-align:center;font-size:18px;}
.gridView td{border:0px;padding-left:10px;}
.gridView tr:hover{cursor:pointer; background:#ffff00;}
.gridView tr:last-child:hover{ background:#000;background:#a7b7fe;}
.altRow{background:#d1daff;}
.gridPager{background:#a7b7fe;color:#000000;}
.gridPager table{margin:0px auto;}
.gridPager table td{width:20px;}
.gridPager table span{cursor:pointer;font-weight:bold;color:#1a1ac9;}
.gridPager table a{cursor:pointer;text-decoration:none;color:#000000;}
.gridPager table a:hover{text-decoration:underline;}
*********************************************************************************
<%@ 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>GridView Edit,Update,Delete And Bind DropdownList in RowEditing event.</title>
<link href="StyleSheet.css" rel="stylesheet" type="text/css" />
</head>
<body>
<form id="form1" runat="server">
<div>
<%="You are viewing page "+(GridView1.PageIndex+1)+" of "+GridView1.PageCount+" ,row count "+GridView1.Rows.Count %>
<asp:GridView ID="GridView1"
runat="server"
AutoGenerateColumns="false"
AutoGenerateEditButton="true"
AutoGenerateDeleteButton="true"
DataKeyNames="Id,Department_id"
CssClass="gridView"
AlternatingRowStyle-CssClass="altRow"
PagerStyle-CssClass="gridPager"
AllowPaging="true"
PageSize="15"
onpageindexchanging="GridView1_PageIndexChanging"
onrowcancelingedit="GridView1_RowCancelingEdit"
onrowdeleting="GridView1_RowDeleting"
onrowediting="GridView1_RowEditing"
onrowupdating="GridView1_RowUpdating" onrowdatabound="GridView1_RowDataBound">
<Columns>
<asp:BoundField DataField="Employeename" HeaderText="Employee Name" />
<asp:BoundField DataField="Salary" HeaderText="Salary" />
<asp:TemplateField HeaderText="Department Name">
<ItemTemplate>
<asp:Literal ID="litDepartment" runat="server" Text='<%#Eval("Department_id") %>'></asp:Literal>
</ItemTemplate>
<EditItemTemplate>
<asp:DropDownList ID="ddlDepartment" runat="server">
</asp:DropDownList>
</EditItemTemplate>
</asp:TemplateField>
</Columns>
</asp:GridView>
</div>
</form>
</body>
</html>
<script type="text/javascript" language="javascript">
function DeleteConfirmation() {
if (confirm("Are you sure, you want to delete the selected records ?") == true)
return true;
else
return false;
}
</script>
********************************************************************************
using System;
using System.Collections.Generic;
using System.Web.UI.WebControls;
public partial class _Default : System.Web.UI.Page
{
private Employee employee = new Employee();
private Department department = new Department();
protected void Page_Load(object sender, EventArgs e)
{
GridView1.CellSpacing = -1;
if (!IsPostBack)
{
BindGrid();
}
}
private void BindGrid()
{
GridView1.DataSource = employee.ReadAll();
GridView1.DataBind();
}
protected void GridView1_PageIndexChanging(object sender, System.Web.UI.WebControls.GridViewPageEventArgs e)
{
GridView1.PageIndex = e.NewPageIndex;
BindGrid();
}
protected void GridView1_RowEditing(object sender, System.Web.UI.WebControls.GridViewEditEventArgs e)
{
GridView1.EditIndex = e.NewEditIndex;
BindGrid();
}
protected void GridView1_RowUpdating(object sender, System.Web.UI.WebControls.GridViewUpdateEventArgs e)
{
GridViewRow currentRow = GridView1.Rows[e.RowIndex];
String dataKey = GridView1.DataKeys[e.RowIndex].Values[0].ToString();
String employeeName = ((TextBox)currentRow.Cells[1].Controls[0]).Text;
String salary = ((TextBox)currentRow.Cells[2].Controls[0]).Text;
String department_id = ((DropDownList)currentRow.FindControl("ddlDepartment")).SelectedValue;
try
{
employee = new Employee();
employee.Id = Convert.ToInt16(dataKey);
employee.Employeename = employeeName;
employee.Salary = Convert.ToDecimal(salary);
employee.Department_id = Convert.ToInt16(department_id);
employee.UpdateById(employee);
}
catch { }
GridView1.EditIndex = -1;
BindGrid();
}
protected void GridView1_RowCancelingEdit(object sender, System.Web.UI.WebControls.GridViewCancelEditEventArgs e)
{
GridView1.EditIndex = -1;
BindGrid();
}
protected void GridView1_RowDeleting(object sender, System.Web.UI.WebControls.GridViewDeleteEventArgs e)
{
String dataKey = GridView1.DataKeys[e.RowIndex].Values[0].ToString();
employee.DeleteById(dataKey);
GridView1.EditIndex = -1;
BindGrid();
}
protected void GridView1_RowDataBound(object sender, System.Web.UI.WebControls.GridViewRowEventArgs e)
{
GridViewRow currentRow = e.Row;
if (e.Row.RowType == DataControlRowType.DataRow)
{
LinkButton delete = (LinkButton)currentRow.Cells[0].Controls[2];
if (delete.Text == "Delete")
{
delete.Attributes.Add("onclick", "DeleteConfirmation()");
}
try
{
Literal departmentName = (Literal)currentRow.Cells[3].FindControl("litDepartment");
departmentName.Text = department.ReadAllById(departmentName.Text)[0].Departmentname;
}
catch
{
}
}
if (e.Row.RowType == DataControlRowType.DataRow &&
(e.Row.RowState & DataControlRowState.Edit) == DataControlRowState.Edit)
{
String Department_id = GridView1.DataKeys[e.Row.RowIndex].Values[1].ToString();
DropDownList ddlDepartment = (DropDownList)currentRow.Cells[3].FindControl("ddlDepartment");
ddlDepartment.DataSource = department.ReadAll();
ddlDepartment.DataTextField = "Departmentname";
ddlDepartment.DataValueField = "Id";
ddlDepartment.DataBind();
ddlDepartment.SelectedValue = Department_id;
}
}
}
********************************************************************************
/* Connection Class*
using System;
using System.Web.Configuration;
public class Connection
{
public Connection(){}
/// <summary>
/// Get Connection string.
/// <summary>
public static String Cs
{
get
{
return WebConfigurationManager.ConnectionStrings["cs"].ConnectionString;
}
}
}
*******************************************************************************
/*Connection Class*/
using System;
using System.Web.Configuration;
public class Connection
{
public Connection(){}
/// <summary>
/// Get Connection string.
/// <summary>
public static String Cs
{
get
{
return WebConfigurationManager.ConnectionStrings["cs"].ConnectionString;
}
}
}
*******************************************************************************
/*Department Class*/
#region Namespaces
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Web;
#endregion
/// <summary>
/// class c
/// </summary>
public class Department
{
#region Properties
private Int32 _Id;
/// <summary>
///Gets or Sets the Int32 value of Id
/// </summary>
public Int32 Id { get { return _Id;} set { _Id = value;} }
private String _Departmentname;
/// <summary>
///Gets or Sets the String value of Departmentname
/// </summary>
public String Departmentname { get { return _Departmentname;} set { _Departmentname = value;} }
#endregion
#region Private Meambers
private SqlCommand cmd;
private SqlConnection con;
private SqlDataReader table;
private String ConnectionString = String.Empty;
#endregion
#region Constructor
/// <summary>
///Default constructor
/// </summary>
public Department()
{
ConnectionString=Connection.Cs;
}
/// <summary>
///Parameterised constructor
/// </summary>
public Department(String connectionString)
{
ConnectionString=connectionString;
}
#endregion
#region Public Methods
/// <summary>
/// This meathod returns all records of Department table.
/// </summary>
/// <returns> All rows of Department table.</returns>
public List<Department> ReadAll()
{
using(con = new SqlConnection(ConnectionString))
{
try
{
List<Department> list = new List<Department>();
if (con.State == ConnectionState.Closed)
{
con.Open();
}
cmd = new SqlCommand("Select * From [dbo].[Department]",con);
using(table = cmd.ExecuteReader())
{
while (table.Read())
{
Department obj = new Department();
obj._Id = table.GetInt32(0);
obj._Departmentname = table.GetString(1);
list.Add(obj);
}
return list;
}
}
finally
{
if (con.State == ConnectionState.Open)
{
con.Close();
}
}
}
}
/// <summary>
/// This meathod returns all records of Department table by column Id.
/// </summary>
/// <param name="Id"></param>
/// <returns>All rows of Department table.</returns>
public List<Department> ReadAllById(String id)
{
using(con = new SqlConnection(ConnectionString))
{
try
{
List<Department> list = new List<Department>();
if (con.State == ConnectionState.Closed)
{
con.Open();
}
cmd = new SqlCommand("Select * From [dbo].[Department] Where [Id]=@ID",con);
cmd.Parameters.AddWithValue("@Id",id);
using(table = cmd.ExecuteReader())
{
while (table.Read())
{
Department obj = new Department();
obj._Id = table.GetInt32(0);
obj._Departmentname = table.GetString(1);
list.Add(obj);
}
return list;
}
}
finally
{
if (con.State == ConnectionState.Open)
{
con.Close();
}
}
}
}
#endregion
}
*******************************************************************************
/*Employee Class*/
#region Namespaces
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SqlClient;
using System.Linq;
using System.Web;
#endregion
/// <summary>
/// class Employee
/// </summary>
public class Employee
{
#region Properties
private Int32 _Id;
/// <summary>
///Gets or Sets the Int32 value of Id
/// </summary>
public Int32 Id { get { return _Id;} set { _Id = value;} }
private String _Employeename;
/// <summary>
///Gets or Sets the String value of Employeename
/// </summary>
public String Employeename { get { return _Employeename;} set { _Employeename = value;} }
private Decimal _Salary;
/// <summary>
///Gets or Sets the Decimal value of Salary
/// </summary>
public Decimal Salary { get { return _Salary;} set { _Salary = value;} }
private Int32 _Department_id;
/// <summary>
///Gets or Sets the Int32 value of Department_id
/// </summary>
public Int32 Department_id { get { return _Department_id;} set { _Department_id = value;} }
#endregion
#region Private Meambers
private SqlCommand cmd;
private SqlConnection con;
private SqlDataReader table;
private String ConnectionString = String.Empty;
#endregion
#region Constructor
/// <summary>
///Default constructor
/// </summary>
public Employee()
{
ConnectionString=Connection.Cs;
}
/// <summary>
///Parameterised constructor
/// </summary>
public Employee(String connectionString)
{
ConnectionString=connectionString;
}
#endregion
#region Public Methods
/// <summary>
/// This meathod returns all records of Employee table.
/// </summary>
/// <returns> All rows of Employee table.</returns>
public List<Employee> ReadAll()
{
using(con = new SqlConnection(ConnectionString))
{
try
{
List<Employee> list = new List<Employee>();
if (con.State == ConnectionState.Closed)
{
con.Open();
}
cmd = new SqlCommand("Select Top(1000)* From [dbo].[Employee]",con);
using(table = cmd.ExecuteReader())
{
while (table.Read())
{
Employee obj = new Employee();
obj._Id = table.GetInt32(0);
obj._Employeename = table.GetString(1);
obj._Salary = table.GetDecimal(2);
obj._Department_id = table.GetInt32(3);
list.Add(obj);
}
return list;
}
}
finally
{
if (con.State == ConnectionState.Open)
{
con.Close();
}
}
}
}
/// <summary>
/// This meathod is for updating record in Employee table by column Id.
/// </summary>
/// <param name="object of Employee"></param>
/// <returns>Number of row affected by query.</returns>
public Int32 UpdateById(Employee obj)
{
using(con = new SqlConnection(ConnectionString))
{
try
{
if (con.State == ConnectionState.Closed)
{
con.Open();
}
cmd = new SqlCommand("Update [dbo].[Employee] Set [Employeename] = @Employeename,[Salary] = @Salary,[Department_id] = @Department_id Where [Id] =@Id",con);
cmd.Parameters.AddWithValue("@Employeename",obj._Employeename);
cmd.Parameters.AddWithValue("@Salary",obj._Salary);
cmd.Parameters.AddWithValue("@Department_id",obj._Department_id);
cmd.Parameters.AddWithValue("@Id",obj._Id);
return cmd.ExecuteNonQuery();
}
finally
{
if (con.State == ConnectionState.Open)
{
con.Close();
}
cmd.Parameters.Clear();
}
}
}
/// <summary>
/// This meathod is for deleting records in Employee table by column Id.
/// </summary>
/// <param name="Id" ></param>
/// <returns>Number of row affected by query.</returns>
public Int32 DeleteById(String id)
{
using(con = new SqlConnection(ConnectionString))
{
try
{
if (con.State == ConnectionState.Closed)
{
con.Open();
}
cmd = new SqlCommand("Delete From [dbo].[Employee] Where [Id] =@Id",con);
cmd.Parameters.AddWithValue("@Id",id);
return cmd.ExecuteNonQuery();
}
finally
{
if (con.State == ConnectionState.Open)
{
con.Close();
}
cmd.Parameters.Clear();
}
}
}
#endregion
#region Private Methods
/// <summary>
/// This meathod returns empty list.
/// </summary>
private List<Employee> GetEmptyList(List<Employee> obj)
{
obj.Add(new Employee());
return obj;
}
#endregion
}
*******************************************************************************
/*Web.config File*/
<connectionStrings>
<add name="cs" connectionString="Data Source=YOUR DATA SOURCE;Initial Catalog=softwarekaffee;Persist Security Info=True;User ID=sa;Password=YOUR PASSWORD"/>
</connectionStrings>
*******************************************************************************
/*Database Schema*/
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);
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