Z 3 ) State Manangement

 State Manangement

  • Application state management is another technique for maintaining the state on the server-side. The data persisting in the application state is shared by all users and that data can be accessed from anywhere within the application.

 
Source Code :-  Ac1.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Ac1.aspx.cs" Inherits="WebApplication1.Ac1" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
        <div>
            <br />
            <br />
&nbsp; Email
            <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
            <br />
            <br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
            <asp:Button ID="Button1" runat="server" Height="29px" OnClick="Button1_Click" Text="Send" Width="75px" />
        </div>
    </form>
</body>
</html>
 Button Code :-  Ac1.aspx.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;


namespace WebApplication1
{
    public partial class Ac1 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            //create session
            Session["email"] = TextBox1.Text;
            Session.Timeout = 4;   // error object refrence not found
            Response.Redirect("Ac3.aspx");
        }
    }
}

    Q )How to Destroy Session 

  2 Method for destroy session
  • Clear        :- Just Clear the session value.
  • Abandon  :-  Clear the memory location

                                                 Source Code :-  Ac2.aspx

<%@ Page Language="C#" AutoEventWireup="true"  CodeFile="Ac2.aspx.cs" Inherits="WebApplication1.Ac2" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
        <div>
            <br />
            <br />
            <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
            <br />
            <br />
            <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Logout" />
        </div>
    </form>
</body>
</html>
                                                          Button Code :-  Ac2.aspx.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication1
{
    public partial class Ac2 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            Label1.Text = (string)Session["email"];
            if (Session["email"] == null)
            {
                Response.Redirect("Ac1.aspx");
            }
            else
            {
                if (!IsPostBack)
                {

                }
            }
        }

        protected void show()
        {
            Session.Clear();
            Session.Abandon();
            Response.Redirect("Ac1.aspx");
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            show();
        }
    }
}
                                                  Source Code :-  Ac3.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Ac3.aspx.cs" Inherits="WebApplication1.Ac3" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
        <div>
            <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
            <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" style="height: 26px" Text="logout" />
        </div>
    </form>
</body>
</html>

                                                             Button Code :-  Ac3.aspx.cs
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication1
{
    public partial class Ac3 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            Label1.Text = (string)Session["Email"];
            if (Session["Email"] == null)
            {
                Response.Redirect("Ac1.aspx");
            }
            else
            {
                if (!IsPostBack)
                {

                }
            }
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
           // Session.Clear();
           // Session.Abandon();
            Response.Redirect("Ac1.aspx");
        }
    }
}

Q ) how to increase Session Time 
  • By Default it is a 60 sec 
Step :- Web.Confige 
         
   <system.web>
    <sessionState mode="InProc" cookieless="true" timeout="60"/>
  </system.web>
Step :- session create ke niche 
      Code :- Session.Timeout = 4 ;

  
  View State 

  •  ViewState is use to data on single page.
  • View state work on client side 
  • Session is on server side 
  • Session store data on whole website
 Source Code :- ViewwState.aspx



 <%@ Page Language="C#" AutoEventWireup="true" CodeFile="Bvstate.aspx.cs" Inherits="WebApplication1.vstate" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
        <div>
            &nbsp;<br />
            <br />
            <br />
            &nbsp; Enter data value
            <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
            <br />
            <br />
&nbsp;&nbsp;
            <asp:Button ID="Button1" runat="server" Height="29px" OnClick="Button1_Click" Text="Clear Value" Width="73px" />
&nbsp;&nbsp;
            <asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="Display Value" />
            <br />
            <br />
&nbsp;&nbsp;
            <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
            <br />
        </div>
    </form>
</body>
</html>

Button Code :- ViewwState.aspx

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Data;
using System.Data.SqlClient;
using System.IO;

namespace WebApplication1
{
    public partial class vstate : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {

            }
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
                    Q ) How To create View State ?

            ViewState["name"] = TextBox1.Text;
            TextBox1.Text = "";
        }

        protected void Button2_Click(object sender, EventArgs e)
        {
                    Q ) How To GetView State ?

            Label1.Text = ViewState["name"].ToString();
        }
    }
}

Context
  • Contex is also called State Mangement 
  • Context Management is use to server transfer method .
      Source Code :- Context1.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="aaContext.aspx.cs" Inherits="WebApplication1.aaContext" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
        <div>
            <br />
            <br />
            <br />
            Enter data
            <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
            <br />
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
            <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Send" />
        </div>
    </form>
</body>
</html>

                                            Button Code :- Context1.aspx

 using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication1
{
    public partial class aaContext : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {
            
        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            // Context.Items[""] = Controlname;
            //Server.Transfer("pagename.aspx");

           // Q )  how to create context

            Context.Items["email"] = TextBox1.Text;
            Server.Transfer("aaContext2.aspx");
        }
    }
}

                                                  Source Code :- Context2.aspx
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="aaContext2.aspx.cs" Inherits="WebApplication1.aaContext2" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
        <div>
            <br />
&nbsp; Welcome User&nbsp;&nbsp;&nbsp;&nbsp;
            <asp:Label ID="Label1" runat="server" BackColor="#FF99FF" Text="Label"></asp:Label>
        </div>
    </form>
</body>
</html>
                                              
                                                        Button Code :- Context2.aspx
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication1
{
    public partial class aaContext2 : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

            // Q ) How to retrive context value

            //Controle = Context.Items["variable"].ToString();
            Label1.Text = Context.Items["email"].ToString();
        }
    }
}

   Cookies 
  • It is a state management 
  • All cookies information is to be store user hard drive 
  • Cookies dosn't use server memory
  • Cookies to be expire as per requirement 
Source code :- Cookie.aspx 

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Cookies.aspx.cs" Inherits="WebApplication1.Cookies" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <p>
        <br />
    </p>
    <p>
        &nbsp;</p>
    <form id="form1" runat="server">
        <p>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
            <asp:TextBox ID="TextBox1" runat="server"></asp:TextBox>
&nbsp;&nbsp;&nbsp;&nbsp;
            <asp:Button ID="Button1" runat="server" OnClick="Button1_Click" Text="Create cookies" />
        </p>
        <p>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
            <asp:TextBox ID="TextBox2" runat="server"></asp:TextBox>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
            <asp:Button ID="Button2" runat="server" OnClick="Button2_Click" Text="Retrive Cookies" />
        </p>
        <p>
            &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
            <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
            &nbsp;</p>
        <div>
        </div>
    </form>
</body>
</html>

Button code :- Cookie.aspx.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication1
{
    public partial class Cookies : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void Button1_Click(object sender, EventArgs e)
        {
             //Q ) How to create cookies 

            Response.Cookies["name"].Value = TextBox1.Text;
            Response.Cookies["name"].Expires = DateTime.Now.AddMinutes(1);
            Label1.Text = "cookies created";
            TextBox1.Text = "";
        }

        protected void Button2_Click(object sender, EventArgs e)
        {

            if(Request.Cookies["name"]==null)
            {
                TextBox2.Text = "no cooies found";
            }
            else
            {
                  //Q ) How to retrive cookies 
                TextBox2.Text = Request.Cookies["name"].Value;
            }
        }
    }
}

 
     Application State  

  •  Server side state management 
  • It is a global storage concept application state data accesable any where 
  • Syntax :- Application ["Variable"] = Value;
Source Code :- ApplicationState.aspx

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Applicatstate.aspx.cs" Inherits="WebApplication1.Applicatstate" %>

<!DOCTYPE html>

<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
    <title></title>
</head>
<body>
    <form id="form1" runat="server">
        <div>
            <br />
            <br />
&nbsp;&nbsp;
            <asp:Label ID="Label1" runat="server" Text="Label"></asp:Label>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
            <asp:Button ID="Button1" runat="server" Height="31px" OnClick="Button1_Click" Text="Click to visit" Width="117px" />
        </div>
    </form>
</body>
</html>

 Button Code :- ApplicationState.aspx.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace WebApplication1
{
    public partial class Applicatstate : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void Button1_Click(object sender, EventArgs e)
        {
            int count = 0;
            if(Application["visit"]!=null)
            {
                count = int.Parse(Application["visit"].ToString());
            }
            count = count + 1;
            Application["visit"] = count;  //replace
            Label1.Text =count.ToString(); //print data
        }
    }
}

Comments

Post a Comment

Popular posts from this blog

DATA CONTROL ( Gridview , Repeater , Formview , DataList , Detailsview , Listview )

  GRIDVIEW SOURCE CODE :      <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False"              Height="279px" Width="610px">             <Columns>                 <asp:TemplateField HeaderText="roll">                 <ItemTemplate>                     <asp:TextBox ID="txtroll" runat="server" Text='<%# Eval("roll") %>'></asp:TextBox>                 </ItemTemplate>                 </asp:TemplateField>                 <asp:TemplateField HeaderText="name">                 <ItemTemplate>               ...
Read more

Z 5 ) MVC (Model view Controller)

Image
  MVC (Model view Controller)    Model View Controller   The first version of  MVC is called MVED(Model View Editor) MVC is to multi layer architecture  Model         (class and variables) View          (.cshtml) Controller   (Logic building) MVC is directly operate html page in this reason it is called light weight environment. MVC Block Diagrame   .NET Framework  ASP.NET MVC ASP.Net Webform Benefits of MVC application It is manage complex application Direct control use in html It provide test driven development testing to (url http/data)
Read more

Z 8 ) MVC HTMLHELPER METHOD AND ACTIONLINK (how to use css ,atrributes,style in css)

Image
  HTML HELPER METHODS IN ASP.NET MVC 5 In ASP.NET MVC Framework, helper methods: Ø  Are extension methods to the Html Helper class, can be called only from views. Ø  An HTML helper is a method that is used to render html content in a view. Ø  Simplifies the process of creating a view. Ø  Allows generating HTML markup that you can reuse across the Web application. Some of the commonly used helper methods while developing an MVC application are as follows: Ø  Html.ActionLink() Ø  Html.BeginForm() and Html.EndForm() Ø  Html.Label() Ø  Html.TextBox() Ø  Html.TextArea() Ø  Html.Password() Ø  Html.CheckBox()
Read more