You create an ASP.NET page named TestPage.aspx that contains validation controls. You need to verify that all input values submitted by the user have been validated by testing the Page.IsValid property. Which page event should you add an event handler to？（）

单项选择题YouaredevelopinganASP.NETWebapplication.Youcreateamasterpage.Themasterpagerequiresaregionwhereyoucanaddpage-specificcontentbyusingtheASP.NETpagedesigner.Youneedtoaddacontroltothemasterpagetodefinetheregion.Whichcontrolshouldyouadd？（）

A.Content
B.ContentPlaceHolder
C.PlaceHolder
D.Substitution

单项选择题YouareimplementinganASP.NETapplicationthatusesdata-boundGridViewcontrolsinmultiplepages.YouaddJavaScriptcodetoperiodicallyupdatespecifictypesofdataitemsintheseGridViewcontrols.YouneedtoensurethattheJavaScriptcodecanlocatetheHTMLelementscreatedforeachrowintheseGridViewcontrols，withoutneedingtobechangedifthecontrolsaremovedfromonepagetoanother.Whatshouldyoudo？（）

A.Replace the GridView control with a ListView control.
B.Set the ClientIDMode attribute to Predictable in the web.config file.
C.Set the ClientIDRowSuffix attribute of each unique GridView control to a different value.
D.Set the @ OutputCache directives VaryByControl attribute to the ID of the GridView control.

单项选择题YouareimplementinganASP.NETWebsitethatwillbeaccessedbyaninternationalaudience.Thesitecontainsglobalandlocalresourcesfordisplayelementsthatmustbetranslatedintothelanguagethatisselectedbytheuser.YouneedtoensurethattheLabelcontrolnamedlblCompanydisplaystextintheusersselectedlanguagefromtheglobalresourcefile.Whichcontrolmarkupshouldyouuse？（）

A.<asp:Label ID="lblCompany" runat="server"  meta:resourcekey="lblCompany" /> 
B.<asp:Label ID="lblCompany" runat="server"    Text="meta:lblCompany.Text" /> 
C.<asp:Label ID="lblCompany" runat="server"  Text="<%$ Resources:lblCompanyText %>" />
D.<asp:Label ID="lblCompany" runat="server"  Text="<%$ Resources:WebResources, lblCompanyText %>" /> 

单项选择题YouhavecreatedanASP.NETservercontrolnamedShoppingCartforusebyotherdevelopers.SomedevelopersreportthattheShoppingCartcontroldoesnotfunctionproperlywithViewStatedisabled.YouwanttoensurethatallinstancesoftheShoppingCartcontrolworkevenifViewStateisdisabled.Whatshouldyoudo？（）

A.Require developers to set EnableViewStateMac to true.
B.Store state in ControlState instead of ViewState.
C.Serialize the state into an Application state entry called "MyControl".
D.Require developers to change the session state mode to SQLServer.

单项选择题YouarecreatinganASP.NETWebsite.ThesitehasamasterpagenamedCustom.master.Thecode-behindfileforCustom.mastercontainsthefollowingcodesegment.PartialPublicClassCustomInheritsSystem.Web.UI.MasterPagePublicPropertyRegionAsStringProtectedSubPage_Load（ByValsenderAsObject，ByValeAsSystem.EventArgs）HandlesMe.LoadEndSubEndClassYoucreateanewASP.NETpageandspecifyCustom.masterasitsmasterpage.YouaddaLabelcontrolnamedlblRegiontothenewpage.YouneedtodisplaythevalueofthemasterpagesRegionpropertyinlblRegion.Whatshouldyoudo？（）

A.Add the following code segment to the Page_Load method of the page code-behind file. Dim custom As Custom = Me.Parent  lblRegion.Text = custom.Region
B.Add the following code segment to the Page_Load method of the page code-behind file. Dim custom As Custom = Me.Master  lblRegion.Text = custom.Region
C.Add the following code segment to the Page_Load method of the Custom.Master.vb code-behind file. Dim lblRegion As Label = Page.FindControl（"lblRegion"） lblRegion.Text = Me.Region
D.Add the following code segment to the Page_Load method of the Custom.Master.vb code-behind file. Dim lblRegion As Label = Master.FindControl（"lblRegion"） lblRegion.Text = Me.Region