The complete ASP.NET (IIS) Tutorial with code example in power point slide show

Information Services (IIS) 6.0 is a powerful Web server that provides a highly reliable, manageable, and scalable Web application infrastructure for all versions of Windows ◦ Compatibility with Microsoft and Other Products◦ Rapid Installation and Configuration◦ Easy Service Management◦ Effortless Performance Monitoring◦ Easy to Implement Security◦ Foundation for ASP.NET◦ IIS pass the request from client to application

Web Server (IIS)Web Server (IIS)

Web ServerWeb Server

Server Machine

ASP (.Net)

Server Machine

ASP (.Net)

Web server (IIS)Web server (IIS)

Client Machine

Client Machine

Client Machine

Client Machine

Client Machine

Client Machine

http request http request http request

Web Server

IIS

Web

Server

IIS

Web

Server

8080

15251525

88998899

(Default Port)

Port Nos.

192.168.0.12Server IP

http://192.168.0.12/myfoler/WebForm1.aspx

http://192.168.0.12:8899/index.html

Is the platform that we use to create Web applications and Web services that run under IIS

At a high level, ASP.NET is a collection of .NET classes that collaborate to process an HTTP request and generate an HTTP response

It provides high level of consistency across web applications

We have components like web development tools,◦ System.web namespace◦ Server and HTML controls

ASP .Net

ASP.NET is a managed server-side framework ◦ For building applications based on HTTP, HTML, XML and SOAP◦ ASP.NET relies on IIS for an HTTP entry point

ASP.NET supports building HTML-based Web applications◦ Based on ASP.NET pages, Web forms and server-side controls

ASP.NET supports building Web services◦ Based on Web service classes and WebMethods

ASP.NET

CLR

Windows 2000 or Windows .NET Server

IIS

HTML over HTTP

XML/SOAP over HTTP

Web Application client

Web Service client

ASP .Net Frame Work

Executable portion of a web application are compiled Enriched tool support ASP.NET applications are based on CLR, so therefore

they are powerful and flexible. On the fly updates deployed without restarting server Better session management Integration with ADO.NET Built in features for caching XML Web services let you create distributed Web

applications Browser-independent Language-independent

ASP.NET programming model is based on applications◦Each application is based on IIS virtual directory

◦Each application is contained within a physical directory

◦Each application runs in its own isolated AppDomain

AssemblyInfo.cs◦ All the information about assembly including

version company name etc

Webform1.aspx◦ The visual description of a Web form.

Webform1.aspx.cs/vb◦ The code that responds to events on the Web

form

Global.asax ◦ The global events that occur in web application

are here

Web.config◦ It is a XML file that web server uses when

processing this application

References ◦ System◦ System.Data◦ System.Drawing◦ System.XML

Webform Views ◦ Design view

The design View represents the user interface.

◦ HTML view. Represents ASP.NET syntax for the webpage

System. Object

System.Web.UI

System.Web.UI.Control

System.Web.UI.Web Controls System.Web.UI.HTMLControls

Component Examples Description

Server controlsServer controls

TextBoxLabelButtonListBoxDropDownListDataGrid

These controls respond to user events by running event procedures on the server. Server controls have built-in features for saving data that the user enters between page displays.

HTML controlsHTML controls

Text AreaTableImageSubmit ButtonReset Button

These represent the standard visual elements provided in HTML. HTML controls are useful when the more complete feature set provided by server controls is not needed.

Data controlsData controls

SqlConnectionSqlCommand,OleDbConnection,OleDbCommandDataSet

Data controls provide a way to connect to, perform commands on, and retrieve data from SQL and OLE databases and XML data files.

ASP.NET stores items added to a page’s ViewState property as hidden fields managed by the ASP.NET page framework.

As soon as form is submitted for processing, all information relevant to the view state of the page is stored within this hidden form field.

View state is enabled for every page by default.

Hidden ViewState control of name-value pairs stored in the Web Form

Adjustable at Web Form and control level

<%@ Page EnableViewState="False" %>

<asp:ListBox id="ListName" EnableViewState="true" runat="server">

</asp:ListBox>

<input type="hidden" name="__VIEWSTATE" value="dDwtMTA4MzE0MjEwNTs7Pg==" />

The validation controls check the validity of data entered in associated server controls on the client before the page is posted back to the server.

Supports validation on client and server Client-side validation is provided by a JScript

library named WebUIValidation.js Can force down-level option

<% @ Page Language="c#" ClientTarget="DownLevel" %>

Validation control Description

RequiredFieldValidator Check whether a control contains data

CompareValidatorCheck whether an entered item matches an entry in another control

RangeValidatorCheck whether an entered item is between two values

ValidationSummaryDisplay validation errors in a central location or display a general validation error description

Validation control Description

RegularExpressionValidator Check whether an entered item matches a specified format

CustomValidator Check the validity of an entered item using a client-side script or a server-side code, or both

HTTP is a stateless protocol, which means that it does not automatically indicate whether a sequence of requests is all from the same client or even whether a single browser instance is still actively viewing a page or site. As a result, building Web applications that need to maintain some cross-request state information (shopping carts, data scrolling, and so on) can be extremely challenging without additional infrastructure help.ASP.NET provides the following support for sessions:

•A session-state facility that is easy to use, familiar to ASP developers, and consistent with other .NET Framework APIs.

•A reliable session-state facility that can survive Internet Information Services (IIS) restarts and worker-process restarts without losing session data.

•A scalable session-state facility that can be used in both Web farm (multicomputer) and Web garden (multiprocess) scenarios and that enables administrators to allocate more processors to a Web application to improve its scalability.

•A session-state facility that works with browsers that do not support HTTP cookies.

•A throughput equivalent to that of ASP (or better) for core session-state scenarios (50/50 read/write when putting items into shopping carts, modifying last page visited, validating credit card details, and so on).

Session State

Session

Server Machine

ASP.Net Progs.

Server Machine

ASP.Net Progs.

Create Session

Session Name “XX”

Session Value “cmc”

Client Machine

“XX” Session with “cmc”

Client Machine


Client Machine


Client Machine


Client Machine


Client Machine


Session “XX” is available till the browser is open, delete automatically when the browser is closed

Web page 1(Creating Session)(Creating Session)

Session.Add(“session_name", “session_value”)

Web page 1(Creating Session)(Creating Session)

Session.Add(“session_name", “session_value”)

Web page 2

(Accessing Session)(Accessing Session)

variable = Session(“session_name")

Web page 2

(Accessing Session)(Accessing Session)

variable = Session(“session_name")

Session

User Id

Password LoginLogin

TextBox1

Session.Add(“user_session", TextBox1.Text)

Login ID

stud1

******

stud1Label1

Label1.Text=Session.Add(“user_session")

Web Page 1

Web Page 2

Session

•A cookie is a small piece of information stored by the browser at local disk.

• Each cookie is stored in a name =value; pair called a crumb(that is, if the cookie name is "id" and you want to save the id's value as "this", the cookie would be saved as id=this)

•In a cookie up to 20 name=value pairs can be stored

•Cookie is always returned as a string of all the cookies that apply to the page.

•It stores information in cookie folder.

•It expires when browser is closed if expired time is not set.

Cookie

Cookie

Server Machine

ASP.Net Progs.

Server Machine

ASP.Net Progs.

Create Cookie

Cookie Name “CC”

Cookie Value “edu”

Create Cookie

Cookie Name “CC”

Cookie Value “edu”

Client Machine

Create “CC” Cookie

Client Machine


Client Machine


Client Machine


Client Machine


Client Machine


[CC] edu

[CC] edu

[CC] edu

Local Disk

Dim MyCookie As New HttpCookie("CMCcookie")

Dim now As DateTime = DateTime.Now

MyCookie.Value = TextBox1.Text

MyCookie.Expires = now.AddSeconds(100)

Response.Cookies.Add(MyCookie)

Dim MyCookie As New HttpCookie("CMCcookie")

Dim now As DateTime = DateTime.Now

MyCookie.Value = TextBox1.Text

MyCookie.Expires = now.AddSeconds(100)

Response.Cookies.Add(MyCookie)

Cookie

Dim ck As HttpCookieck = Request.Cookies("CMCcookie")If ck Is Nothing Then Exit SubEnd If TextBox1.Text = ck.Name TextBox2.Text = ck.Value

Dim ck As HttpCookieck = Request.Cookies("CMCcookie")If ck Is Nothing Then Exit SubEnd If TextBox1.Text = ck.Name TextBox2.Text = ck.Value

studentstudent

Set CookieSet Cookie

TextBox1

CMCcookieCMCcookie

studentstudent TextBox2

TextBox1

Show CookieShow Cookie

Cookie

Dim i, j As Integer

Dim arr1() As String

Dim MyCookieColl As HttpCookieCollection

Dim MyCookie As HttpCookie

MyCookieColl = Request.Cookies

' Capture all cookie names into a string array.

arr1 = MyCookieColl.AllKeys

For i = 0 To arr1.GetUpperBound(0)

MyCookie = MyCookieColl(arr1(i))

Response.Write("Cookie: " & MyCookie.Name & " ")

Response.Write("Value " & MyCookie.Value & " ")

Response.Write("Expires: " & MyCookie.Expires & " ")

Response.Write("Secure:" & MyCookie.Secure & " ")

Next i

Display All Cookies From Local

Machine

Display All Cookies From Local

Machine

Application

•Application variables are, in effect, global variables for a given ASP.NET application.

•Client-side application developers, ASP.NET programmers should always consider the impact of storing anything as a global variable.

•Share information throughout the application by using the Application class

•This class exposes a key-value dictionary of objects that you can use to store both .NET Framework objects and scalar values related to multiple Web requests from multiple clients.

•The memory impact of storing something in application state. The memory occupied by variables stored in application state is not released until the value is either removed or replaced.

Application

Server Machine

ASP.Net Progs.

Server Machine

ASP.Net Progs.

Create Application

Session Name “My_App”

Session Value “India”

Create Application

Session Name “My_App”

Session Value “India”

Client Machine

Accessing “My_App” with value “India”

Client Machine


Client Machine


Client Machine


Client Machine


Client Machine


Application

Server MachineServer Machine

Application(“My_App") = “India”

Server MachineServer Machine

Application(“My_App") = “India”

Client 1Client 1

x=Application(“My_App")

TextBox1.Text=x

IndiaIndia

Client 2Client 2

y=Application(“My_App")

TextBox1.Text=y

IndiaIndia

Client 3Client 3

z=Application(“My_App")

TextBox1.Text=z

IndiaIndia

Caching

•Caching, use to create high-performance Web applications.

•Caching are Output Caching and Data Caching

•Output Caching allows to store dynamic page and user control responses

•On subsequent requests, the page or user control code is not executed.

•The cached output is used to satisfy the request.

•Data Caching can use to programmatically store arbitrary objects, such as data sets, to server memory so that your application can save the time and resources it takes to recreate them.

Caching (Output Cache)

<%@ OutputCache Duration="30" VaryByParam="location;count" %><%@ Page Language="vb" AutoEventWireup="false" Codebehind="WebForm1.aspx.vb" Inherits="cacheing.WebForm1"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">

<HTML>

<BODY>

-------------------------------------------------

-------------------------------------------------

</BODY>

</HTML>

WebForm1.aspx (Html View)

Response.Write("The Page was executed " & DateTime.Now.ToString + "")

If RadioButton1.Checked = True Then

Label1.Text = "You have selected... Red color"

Else

Label1.Text = "You have selected... Blue color"

End If WebForm1.aspx.vb

Caching (Data Cache)

Dim flag As Integer source = Cache("MyDataCache") If source Is Nothing Then flag = 100 cmd = New OleDb.OleDbCommand("select * from dept ", conn) adp = New OleDbDataAdapter(cmd) ds = New DataSet() adp.Fill(ds, “deptX")

source = New DataView(ds.Tables("deptX "))

Cache.Insert("MyDataCache", source, New Caching.CacheDependency(Server.MapPath("datacache")), DateTime.Now.AddSeconds(20), Cache.NoSlidingExpiration) End If DataGrid1.DataSource = source DataGrid1.DataBind() If flag = 100 Then Label1.Text = "Data from Database" Else Label1.Text = "Data from Cache" End If

WebForm1.aspx.vb

Ad Rotator Control

•AdRotator control to display a randomly selected advertisement banner on the Web page.

•The displayed advertisement can change whenever the page refreshes.

•Advertisement information is stored in a separate XML file.

•The XML file allows you to maintain a list of advertisements and their associated attributes. Attributes include the path to an image to display, the URL to link to when the control is clicked, the alternate text to display when the image in not available, a keyword, and the frequency of the advertisement.

•AdRotator control to display a randomly selected advertisement banner on the Web page.

•The displayed advertisement can change whenever the page refreshes.

•Advertisement information is stored in a separate XML file.

•The XML file allows you to maintain a list of advertisements and their associated attributes. Attributes include the path to an image to display, the URL to link to when the control is clicked, the alternate text to display when the image in not available, a keyword, and the frequency of the advertisement.

Ad Rotator Control

<Advertisements> <Ad> <ImageUrl>image1.jpg</ImageUrl> <NavigateUrl>http://www.microsoft.com</NavigateUrl> <AlternateText>Microsoft Main Site</AlternateText> <Impressions>80</Impressions> <Keyword>Topic1</Keyword> </Ad> <Ad> <ImageUrl>image2.jpg</ImageUrl> <NavigateUrl>http://www.wingtiptoys.com</NavigateUrl> <AlternateText>Wing Tip Toys</AlternateText> <Impressions>80</Impressions> <Keyword>Topic2</Keyword> </Ad></Advertisements>

<Advertisements> <Ad> <ImageUrl>image1.jpg</ImageUrl> <NavigateUrl>http://www.microsoft.com</NavigateUrl> <AlternateText>Microsoft Main Site</AlternateText> <Impressions>80</Impressions> <Keyword>Topic1</Keyword> </Ad> <Ad> <ImageUrl>image2.jpg</ImageUrl> <NavigateUrl>http://www.wingtiptoys.com</NavigateUrl> <AlternateText>Wing Tip Toys</AlternateText> <Impressions>80</Impressions> <Keyword>Topic2</Keyword> </Ad></Advertisements>

WebForm1.aspx (Design View)

Ad Rotator ControAd Rotator Contro

Ads.xml

AdvertisementFile=“Ads.xml”

Image1.jpg, image2.jpg and other picture file

should be added to the current project

There are some advanced list controls like Repeater, DataList, and DataGrid

They take collections of data and loop through them automatically.

They act as containers for other controls that actually display the data such as labels.

These controls are very powerful and save developers a lot of manual work.

Advanced List Controls

Provides simple output of a list of items Templates provide the visual form It iterates over the bound data, rendering its

ItemTemplate once for each item in the DataSource collection

Useful to have complete control over how data from a data source is rendered

No paging Can provide templates for separators Does not provide update data

Repeater Control

Standard templates for Repeater controls◦ HeaderTemplate: rendered once before all data

bound rows◦ ItemTemplate: rendered once for each row in the

data source◦ AlternatingItemTemplate: like ItemTemplate, but

when present is used for every other row◦ SeparatorTemplate: rendered between each row◦ FooterTemplate: rendered once, after all data

bound rows

Repeater Control

To bind embedded controls to the data source of the container control DataBinder.Eval() method is used

DataBinder.Eval() method is provided by .net to evaluate expression

Syntax◦ <%# DataBinder.Eval(Container.DataItem,“DataFieldname") %>◦ Container represents the container for data items ◦ DataField represents the name of data item field

Repeater Control

Provides list output with editing Default look is a table Customized via templates Directional rendering (horizontal or vertical) Alternate item Updateable No paging

DataList Control

Full-featured list output Default look is a grid Default is to show all columns, though you

can specify a subset of columns to display Columns can be formatted with templates Optional paging Updatable

DataGrid Control

ASP.NET supports tracing ◦ Easy way to include “debug” statements ◦ No more messy Response.Write() calls!

Great way to collect request details◦ Server control tree◦ Server variables, headers, cookies◦ Form/Query string parameters◦ Tracing provides a wealth of information about the

page Can be enabled at page- or application- level

Tracing

Methods◦Trace.Write: Writes category and text to trace◦Trace.Warn: Writes category and text to trace in

red Properties

◦Trace.IsEnabled: True if tracing is turned on for the application or just that page

◦ Tracemode = "[SortByTime | SortByCategory Trace.axd

◦ is an Http Handler( An Http Handler is a coding option that allows us to handle request/responses at the most basic level).

Tracing

<trace enabled="false" requestLimit="10" pageOutput="false" traceMode="SortByTime" localOnly="true"

/>

Tracing

.NET Common Language Runtime provides structured Exception handling using try catch block.

ASP.NET provides declarative application custom error handling◦ Automatically redirect users to error page when

unhandled exceptions occur◦ Prevents ugly error messages from being sent to

users<customErrors mode="RemoteOnly"/>

Error Handling

Mode attribute is either set into On or RemoteOnly .

On◦ Error messages will be displayed in client and well as server where application is running

RemoteOnly◦ Error messages will be displayed only at client location

Error Handling

Custom Error Pages Can specify error pages for specific HTTP

status codes in web.config<configuration> <customerrors mode=“remoteonly” defaultredirect=“error.htm”> <error statuscode=“404” redirect=“adminmessage.htm”/> <error statuscode=“403” redirect=“noaccessallowed.htm”/> </customerrors> </configuration>

Error Handling

Subhas MalikSoftware Developer(R&D Web ERP).

Microsoft SQL Server , C# , Ajax , Jquery , WCF , WPF , Telerik , MVP, MVC.Kolkata, West Bengal, India.

Subhas Malik writes about a wide range of technology and products, but has a particular focus on internet technology, browsers, software development (both back end and font end), cyber security, mobile technology and many others related to Information Technology. He joined blog/tech forum/developer community since 2009 and has also covered blogger, Microsoft, codeplex, stackoverflow, slideshare, linkedin, codeproject, c-sharpcorner, youtube, quora, stackexchange, soundcloud, Google, Yahoo, servers, supercomputing, Linux, other open-source software, and science and many other tech community.follow in blogger, wordpress , google+, Facebook, twitter, rediff mypage and itimes.

Subhas MalikSoftware Developer(R&D Web ERP).

Microsoft SQL Server , C# , Ajax , Jquery , WCF , WPF , Telerik , MVP, MVC.Kolkata, West Bengal, India.

Subhas Malik writes about a wide range of technology and products, but has a particular focus on internet technology, browsers, software development (both back end and font end), cyber security, mobile technology and many others related to Information Technology. He joined blog/tech forum/developer community since 2009 and has also covered blogger, Microsoft, codeplex, stackoverflow, slideshare, linkedin, codeproject, c-sharpcorner, youtube, quora, stackexchange, soundcloud, Google, Yahoo, servers, supercomputing, Linux, other open-source software, and science and many other tech community.follow in blogger, wordpress , google+, Facebook, twitter, rediff mypage and itimes.

Thank You!

The complete ASP.NET (IIS) Tutorial with code example in power point slide show

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Transcript of The complete ASP.NET (IIS) Tutorial with code example in power point slide show