MCTS 70-515 题库：Web应用程序开发与Microsoft .NET Framework 4

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"该资源是针对MCTS 70-515认证考试的题库，专注于Windows Communication Foundation (WCF)与Microsoft .NET Framework 4的开发。它旨在帮助考生顺利通过IT专业资格考试。" 这篇内容包含了两个具体的问题及其解答，涉及到ASP.NET应用程序的开发和性能优化：问题1：在实现一个使用数据绑定GridView控件的ASP.NET应用时，你添加了JavaScript代码来定期更新特定类型的数据显示。为了确保JavaScript代码能够定位到GridView控件中的HTML元素，即使控件从一个页面移动到另一个页面也不需要更改，你应该怎么做？答案：C. 设置每个独特GridView控件的ClientIDRowSuffix属性为不同的值。解释：在ASP.NET中，GridView控件的默认行为是生成不规则的ID（通常是基于父容器的ID），这使得在JavaScript中查找和操作这些元素变得复杂。通过设置`ClientIDRowSuffix`属性，你可以为每行数据指定一个唯一的后缀，从而在JavaScript中更容易地找到它们。这样，即使控件的位置改变，其对应的HTML元素ID也能保持一致。问题2：你正在实施一个包含名为TestPage.aspx的ASP.NET应用，该页面使用了一个名为Te的主页面。你需要做什么来确保TestPage.aspx的内容缓存可以因主页面的不同而变化？答案：D. 设置@OutputCache指令的VaryByControl属性为GridView控件的ID。解释：ASP.NET的`@OutputCache`指令用于缓存页面或部分页面的输出，提高性能。如果页面内容依赖于其他控件（如主页面），则应使用`VaryByControl`属性指定依赖的控件ID。这样，当这些控件的值改变时，缓存的内容也会相应更新，确保用户看到的是最新的内容。这个题库着重于实际的开发实践，包括但不限于数据绑定控件的使用、前端JavaScript交互以及ASP.NET的性能优化策略。通过学习和练习这些题目，考生将能更好地理解和掌握如何在.NET Framework 4环境中开发Web应用程序，特别是使用WCF进行通信。

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1.You are implementing an ASP.NET application that uses data

bound GridVi

ew controls in multiple

pages. You add JavaScript code to periodically update specific types of data items in these GridView

controls. You need to ensure that the JavaScript code can locate the HTML elements created for each

row in these GridView controls,

without needing to be changed if the controls are moved from one pa to

another. What should you do?

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 directive's VaryByControl attribute to the ID of the GridView control.

Answer: C

2.You are implementing an ASP.NET application that includes a page named TestPage.asp

TestPage.aspx uses a master page named TestMaster.master. You add the following code to the

TestPage.aspx code

behind file to read a TestMaster.master public property named CityName.

protected void Page_Load(object sender, EventArgs e).

{ string s = Mas

ter.CityName;.

} You need to ensure that TestPage.aspx can access the CityName property. What should you do?

A.Add the following directive to TestPage.aspx.

<%@ MasterType VirtualPath="~/TestMaster.master" %>

B.Add the following directive to TestPage.aspx.

<%@ PreviousPageType VirtualPath="~/TestMaster.master" %>

C.Set the Strict attribute in the @ Master directive of the TestMaster.master page to true.

D.Set the Explicit attribute in the @ Master directive of the TestMaster.master page to true.

Answer: A

3.You are implementing an ASP.NET application that includes a page named TestPage.aspx.

TestPage.aspx uses a master page named TestMaster.master. You add the following code to the

TestPage.aspx code

behind file to read a TestMaster.master public property n

amed CityName.

Protected Sub Page_Load(ByVal sender As Object,

ByVal e As System.EventArgs) Handles Me.Load

Dim s As String = Master.CityName

End Sub

You need to ensure that TestPage.aspx can access the CityName property. What should you do?

A.Add the foll

owing directive to TestPage.aspx.

<%@ MasterType VirtualPath="~/TestMaster.master" %>

B.Add the following directive to TestPage.aspx.

<%@ PreviousPageType VirtualPath="~/TestMaster.master" %>

C.Set the Strict attribute in the @ Master directive of the Test

Master.master page to true.

D.Set the Explicit attribute in the @ Master directive of the TestMaster.master page to true.

Answer: A

4.You are implementing an ASP.NET page. You add asp:Button controls for Help and for Detail. You add

an ASP.NET skin file n

amed default.skin to a theme. You need to create and use a separate style for the

Help button, and you must use the default style for the Detail button. What should you do?

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