單項選擇題

You are developing an ASP.NET Web page that contains input controls， validation controls， and a button named btnSubmit. The page has the following code-behind.01 Public Class _Default 02 Inherits System.Web.UI.Page03 04 Protected Sub SaveToDatabase（）05 06 End Sub07 08 Protected Sub btnSubmit_Click（ByVal sender As Object，09 ByVal e As EventArgs） Handles btnSubmit.Click10 11 End Sub12 13 End Class You need to ensure that all data that is submitted passes validation before the data is saved in a database. What should you do？（）

A.Add the following method override. Protected Overrides Sub OnInit（ByVal e As EventArgs） MyBase.OnInit（e） If （Page.IsValid） Then Me.SaveToDatabase（） End Sub
B.Add the following method override. Protected Overrides Sub OnLoad（ByVal e As EventArgs） MyBase.OnLoad（e） If （Page.IsValid） Then Me.SaveToDatabase（） End Sub
C.Add the following method override.Protected Overrides Sub OnPreRender（ByVal e As EventArgs） MyBase.OnPreRender（e） If （Page.IsValid） Then Me.SaveToDatabase（） End Sub
D.Add the following code segment at line 10. If （Page.IsValid） Then Me.SaveToDatabase（）

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單項選擇題

You create a new ASP.NET MVC 2 Web application. The following default routes are created in the Global.asax.vb file.01 Shared Sub RegisterRoutes（ByVal routes As RouteCollection）02 03 routes.IgnoreRoute（"{resource}.axd/{*pathInfo}"）04 05 routes.MapRoute（ "Default"， "{controller}/{action}/{id}"， New With {.controller = "Home"， .action = "Index"， .id = ""}） 06 End Sub You implement a controller named HomeController that includes methods with the following signatures.Function Index（） As ActionResult Function Details（ByVal id As Integer） As ActionResultFunction DetailsByUsername（ ByVal username As String） As ActionResult You need to add a route to meet the following requirements. The details for a user must be displayed when a user name is entered as the path by invoking the DetailsByUsername action. User names can contain alphanumeric characters and underscores， and can be between 3 and 20 characters long.What should you do？（）

A.Replace line 05 with the following code segment. routes.MapRoute（ "Default"， "{controller}/{action}/{id}"， New With {.controller = "Home"， .action = "DetailsByUsername"， .id = ""}）
B.Replace line 05 with the following code segment. routes.MapRoute（"Default"， "{controller}/{action}/{username}"， New With {.controller = "Home"， .action = "DetailsByUsername"， .username = ""}， New With {.username = "\w{3，20}"} ）
C.At line 04， add the following code segment.routes.MapRoute（ "Details byUsername""{username}"， New With {.controller = "Home"， .action = "DetailsByUsername"}， New With {.username = "\w{3，20}"}）
D.At line 04， add the following code segment. routes.MapRoute（ "Details by Username"， "{id}"， New With {.controller = "Home"， .action = "DetailsByUsername"}， New With {.id = "\w{3，20}"} ）

單項選擇題

You are implementing an ASP.NET MVC 2 application. In the Areas folder， you add a subfolder named Product to create a single project areA. You add files named ProductController.vb and Index.aspx to the appropriate subfolders. You then add a file named Route.vb to the Product folder that contains the following code.01 Public Class Route Inherits AreaRegistration02 03 Public Overrides ReadOnly Property AreaName As String04 Get 05 Return "product"06 End Get 07 End Property08 09 Public Overrides Sub RegisterArea（ByVal context As AreaRegistrationContext）10 11 context.MapRoute（"product_default"， "product/{controller}/{action}/{id}"， New With {.controller = "Product"， .action = "Index"，.id = ""}）12 13 End Sub End Class When you load the URL http：///product， you discover that the correct page is not returned. You need to ensure that the correct page is returned. What should you do？（）

A.Replace line 11 with the following code segment. context.MapRoute（"product_default"， "{area}/{controller}/{action}/{id}"， New With {.area = "product"， .controller = "Product"， .action = "Index"， .id = ""}）
B.Replace line 11 with the following code segment. context.MapRoute（"product_default"， "{area}"， New With {.controller = "Product"， .action = "Index"， .id = ""}）
C.Add the following code segment at line 12. AreaRegistration.RegisterAllAreas（）
D.Add the following code segment to the RegisterRoutes method in the Global.asax.vb file. AreaRegistration.RegisterAllAreas（）