ASP.NET
ASP.NET
| ASP Master Page | <%@ Master Language="C#" AutoEventWireup="true" CodeFile="SiteTemplate.master.cs" Inherits="SiteTemplate" %> |
| Content Page | <%@ Page Language="C#" MasterPageFile="~/SiteTemplate.master" ... %> |
| <asp:ContentPlaceHolder id="TitleContent" runat="server"> </asp:ContentPlaceHolder> | |
| HttpHandler | IHttpHandler, ProcessRequest(System.Web.HttpContext context), IsReusable |
| HttpModule | IHttpModule, Init(HttpApplication app), app.BeginRequest += new EventHandler(this.OnBeginRequest); |
| WebGarden | In IIS 6,Application Pools are created.If number of WorkerProcess permitted for service request is greater than 1 then it called WebGarden. Round-robin, Least Active, Fastest Reply |
| Levels of Security | Authentication, Authorization, Confidentiality, Integrity |
| ASP.NET Security Architecture | Application : BeginRequest, AuthenticateRequest, PostAuthenticate Request, Authorize Request, Post Authorize Request, Acquire Request State |
| Authenticaton | Windows, Forms, Passport, Custom Impersonation is the process of executing code in the context (or on behalf) of another user identity |
| Forms Authentication | Ticket-based (also called token-based) system. <authentication mode="Forms"> <forms loginUrl="Login.aspx"> </forms> <location path="salesPages"> <system.web> <authorization> <allow roles="sales" /> <deny users="*" /> </authorization> </system.web> </location> FormsAuthentication.Authenticate(UsernameText.Text, PasswordText.Text) HttpCookie AuthCookie; AuthCookie = FormsAuthentication.GetAuthCookie(UsernameText.Text, true); AuthCookie.Expires = DateTime.Now.AddDays(10); Response.Cookies.Add(AuthCookie); Response.Redirect(FormsAuthentication.GetRedirectUrl(UsernameText.Text, true)); |
| Windows Based Authentication | |
| Basic Authentication | Web browser displays a login dialog box for user name and password.Credentials are transmitted between the client and server as clear text |
| Digest Authentication | Passes a hash of the password, |
| Integrated Windows Authentication | Both the client and the web server must be on the same local network or intranet Most convenient authentication standard for WAN-based and LAN-based intranet applications. It performs authentication without requiring any client interaction Authentication information is either NTLM (NT LAN Manager) authentication or Kerberos 5 <configuration> <system.web> <authentication mode="Windows"/> </system.web> </configuration> |
| Worker process EXE | IIS 5.0 - aspnet_wp.exe, IIS 6.0 - w3wp.exe, OutProcess - ASPNet_State.exe, SQL Server aspnet_regsql |
| Tracing | ASP.NET collects trace information for each request to the application which can be viewed in trace viewer. Web.Config : <trace enabled="true" pageOutput="false" requestLimit="40" localOnly="false"/> < %@ Page Trace="true" %> File :trace.axd in web app path |
| @Page Directive | AspCompat, Language, AutoEventWireup, CodeFile, Title, Culture, UICulture, ValidateRequest, Theme, SmartNavigation, MasterPageFile, EnableViewState, ErrorPage, Inherits |
| @Master Directive | Language, AutoEventWireup, CodeFile, Title, MasterPageFile, EnableViewState, Inherits |
| @Control Directive | Language, AutoEventWireup, CodeFile, EnableViewState, Inherits, Debug, Src |
| @Register Directive | Assembly, Namespace, Src, TagName, TagPrefix |
| @Reference Directive | Control, Page, VirutalPath |
| @PreviousPageType Directive | TagName, VirutalPath |
| @OutputCache Directive | Duration, Location, VaryByParam, VaryByControl, VaryByCustom, VaryByHeader |
| Finalize method in .NET | Object.Finalize, Garbage Collector |
| DISPOSE method | Dispose method belongs to ‘IDisposable’ interface. Call GC.SuppressFinalize(this) in destructor of the class. |
| Page Life Cycle | Init - LoadViewState - Load - Render - Unload |
| EnableViewStateMAC | Encoded and encrypted viewstate is checked to verify that it has not been tempered with on the client machine |
| Master Page | In Master page : <asp:ContentPlaceHolder ID="MainContent" runat="server"/> In Child Page : In Page directive MasterPageFile="~/Site.master" <asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent"> |
| System.Text.StringBuilder | Strings are immutable (new object every time), StringBuilder are mutable |
| Localization and Globalization | Globalization is process of identifying how many resources needs to be localized to adopt a multiple culture support, while Localization is actual process of translating resource to a specific culture. So Localization is the part of Globalization. (1) Tool -> Generate Resource (2) <asp:Button ID="Button1" runat="server" Text="Hello" meta:resourcekey="Button1Resource1" /> (3) Resource File with .resx extension is created (4) For French aspx.fr.resx (5) Need to set the Language Priority in IE Settings |
| Callbacks and Postback | Callback : It is a way to send a request to the web page from the client script. Postback is an expensive call with processing overhead. In callback a client function sends a request and a special marked method is invoked on the server. It does the processing & returns the value which is received by another client function to process the result. To have client side callbacks, the page has to implement ICallbackEventHandler & implement functions RaiseCallBackEvent & GetCallBackResult. PostBack: Postback is the event which sends the form data to the server. The server processes the data & sends it back to the browser. The page goes through its full life cycle & is rendered on the browser. It can be triggered by using the server controls. |
| 1)SmtpClient 2)MailMessage | |
| UniqueID and ClientID | Both the properties are associated with asp.net control. The difference is Unique ID has '$' (Dollar) sign and Client ID adds '_' (hyphen) to the control, if master page is used. Let's say you have placed a text box called 'txtName' in content place holder. So client ID will be ct100_ContentPlaceHolder1_txtName where Unique ID will be ct100$ContentPlaceHolder1$txtName. ClientID is used to access control in Java Script where using Unique ID you can make a post back using java script __doPostBack() function. |
| Lamda Expressions | A lambda expression is an anonymous function that you can use to create delegates or expression tree types. |
| Session State SQL Server | Utility aspnet_regsql. -S <server> SQL Server instance (SQL Server 7.0 and above) to work with. -U <login id> SQL Server user name to authenticate with; requires -P option. -P <password> SQL Server password to authenticate with; requires -U option. -E Authenticate with current Windows credentials. -C <connection string> Connection string. Instead of specifying a user name, password, and server name, specify a SQL Server connection string. The string must not contain a database name unless otherwise specified. Finally new database "ASPState" will be created in SQLServer, There will be no tables in this database.States will be stored in temp tables. TempDB : Tables dbo.ASPStateTempApplications, dbo.ASPStateTempSessions Connection String : <sessionStatemode="SQLServer" sqlConnectionString="server=SAURABHPC;trusted_connection=yes"> </sessionState> |
| Nunit | NuGet > Install-Package Nunit. [TestClass] [TestMethod] Assert.AreEqual(expected,actual) |
| StrongName | sn -k test.snk |
| Web Garden / Application Pool | A single application pool in IIS represents a single w3wp.exe process. Having multiple w3wp.exe process within a single app pool on a single server is called a 'Web Garden' |
| Extension Methods | Add methods to a class without altering the code of that class |
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