machineasp.net

ASP.
NETPart1Instructor:CharlesMoenCSCI/CINF4230*ASP.
NETMicrosofttechnologyforbuildingdynamic,interactivewebsitesPartoftheMicrosoft.
NETFrameworkServer-sidetechnologythatmustbeusedonaMicrosoftserverIt'susedonsomeofthebiggestwebsites-Microsoft.
com-Costco.
com-Dell.
com-Monster.
com-MySpace.
com-Match.
comASP.
NET(Walther,Wikipedia,Ding,Microsoft)*ASP.
NETHistoryNamedASP+whilestillinbetaASP.
NET1.
0wasreleasedbyMicrosoftinJanuary2002ItsnameissimilartoanearlierMicrosofttechnologyfordynamically-createdWebpagesthatiscalledASP(forActiveServerPages),buttheyareincompatibleandareverydifferentTheearlyversionissometimescalled"ClassicASP"ASP.
NET3.
5CurrentversionReleasedinNovember2007ASP.
NET(Wikipedia)*.
NETFrameworkAmarketingtermthatMicrosoftusesforacollectionoftechnologiesLanguages,suchasC#andVBThe.
NETclasslibraryASP.
NET–theengineforhostingdynamicwebpagesADO.
NET–thetechnologyforconnectingtodatabaseVisualStudioASP.
NET(MacDonald)*.
NETFrameworkFrameworkClassLibraryMorethan13,000classesAlltheclassesaredividedintonamespacesTheclassesarestoredin.
dllfiles,whicharecalled"assemblies,"e.
g.
System.
Web.
dllCommonLanguageRuntimeExecutesyourapplicationcodeAcompilerconvertsthesourcecodeintoMSIL(MicrosoftIntermediateLanguage),whichisplatform-independentTheJITTER(Just-In-Timecompiler)convertstheMSILcodeintomachinecodewhentheapplicationexecutesASP.
NET(Walther)*DevelopmentEnvironmentsIDEVisualWebpagedevelopment,drag-and-dropcontrols,codecompletion,integrateddebugging,automaticcompiling,more.
.
.
MicrosoftVisualStudio2008MicrosoftVisualWebDeveloper2008ExpressEditionFreewww.
microsoft.
com/express/vwdServersIISASP.
NETDevelopmentServerrunbytheIDEOSWindowsXPProfessionalWindowsVistaASP.
NET(Wikipedia,Walther,Ding)*Server-sideProcessingASP.
NET(MacDonald)IISistheserverhttp://dcm.
uhcl.
edu/moen/welcome.
aspxCharles+MoenServerlooksattheextensionoftherequestedfileIfitishtmlTheserverlocatesthefileThenreturnsittotheuseragentinsideanHTTPresponseIfitisaspxTheserverfindstheprogramthatcanprocessitSendstherequesttotheASP.
NETengineinaspnet_isapi.
dllASP.
NETprocessesthepageintheaspxfileTheservergetstheHTMLfromASP.
NET;returnsittotheuseragentinsideanHTTPresponseASP.
NET*FileTypes.
aspxASP.
NETwebpages.
aspx.
csCode-behindfilesthatcontainC#codeSeparatesapplicationlogicfromthestructureandpresentationofthewebpage.
ascxUsercontrolsthatyou'vedeveloped.
asmxWebservices–methodsthatcanbecalledovertheInternetweb.
configXMLconfigurationfileGlobal.
asaxGlobalapplicationfile–defineglobalvariablesandeventhandlersASP.
NET(MacDonald)*.
aspxFileExampleasp:LabelID="Label1"runat="server"Text="Enteryourname:">ASP.
NET(MacDonald)A.
aspxpageisreferredtoasaWebFormMost.
aspxpageshaveaformelementDifferentfromanHTMLformbecauseitusesASP.
NETcontrols*PageDirectiveASP.
NET(MacDonald)AlwaysthefirstlineTellsASP.
NETbasicinformationabouthowtocompilethepageLanguageusedforthecodeThewaythateventhandlersareconnectedIfyou'reusingcode-behind,itspecifiesthecode-behindfileandthenameoftheclassinthecode-behindfileExampleasp:LabelID="Label1"runat="server"Text="Enteryourname:">*DOCTYPEASP.
NET(MacDonald)FollowsthepagedirectiveDefaultstotransitionalExampleasp:LabelID="Label1"runat="server"Text="Enteryourname:">*HTMLElementsASP.
NET(MacDonald)HTMLelements–html,head,bodyFormelementIncludedbydefaultContainsanesteddivelementbydefaultExampleasp:LabelID="Label1"runat="server"Text="Enteryourname:">*ASP.
NETWebControlsASP.
NET(MacDonald)OrdinaryXHTMLelementsaremixedwithASP.
NETwebcontrolsIndentifiedbytheasp:namespaceWhenthepageisprocessedintheASP.
NETengine,theASP.
NETwebcontrolsarerenderedasXHTMLmarkupPagesenttotheclientisalwaysstandardXHTML,andmayincludeCSSandJavaScriptExampleasp:LabelID="Label1"runat="server"Text="Enteryourname:">*ASP.
NETControlsHTMLservercontrolsEquivalenttostandardHTMLelementsProcessedontheserversideWebcontrolsASP.
NETversionsofstandardcontrolsbuttons,inputfields,labelsValidationcontrolsrequiredfield,range,regularexpressionDatacontrolsforworkingwithdatainadatabaseNavigationcontrolsmenus,treeviews,breadcrumbtrailsRichcontrolscalendar,fileupload,wizards,banneradsLogincontrolsASP.
NET(Walther,MacDonald)*HTMLServerControlsEquivalenttostandardHTMLelementsProcessedontheserversideEachcontrolhasaclassthatisdefinedinSystem.
Web.
UI.
HtmlControls(MacDonald,p.
138)AdvantagesTheyretaintheirstateTheyfireserver-sideevents,whichyourcodecanrespondtoEasytoconvertfromanexistingpageAddrunat="server"ASP.
NET(Walther,MacDonald)*ConvertingfromHTMLtoASP.
NETASP.
NET(MacDonald)CurrencyConverterConvert: inputtype="text"id="US"nbsp;U.
S.
dollarstoEuros.
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