You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. 
You create a page that contains the following code fragment. 
| English | Chinese | Japan | Korean | - 92 - Test Information Co.， Ltd. All rights reserved. <asp：ListBox ID="lstLanguages"AutoPostBack="true" runat="server" /> 
You write the following code segment in the code-behind file for the page. 
void BindData（object sender， EventArgs e） { 
lstLanguages.DataSource = 
CultureInfo.GetCultures（CultureTypes.AllCultures）； 
lstLanguages.DataTextField = "EnglishName"； 
lstLanguages.DataBind（）； 
} 
You need to ensure that the lstLanguages ListBox control maintains the selection of the user during postback. 
Which line of code should you insert in the constructor of the page？（）

You create a Microsoft ASP.NET application by using the...

单项选择题

You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. 
You create a page that contains the following control. 
 You write the following code segment in the code-behind file for the page. 
Private Sub LoadDate（ByVal sender As Object， _ByVal e As EventArgs） 
If IsPostBack Then 
calBegin.SelectedDate = _ 
DirectCast（ViewState（"date"）， DateTime）
End If 
End Sub 
Private Sub SaveDate（ByVal sender As Object， _ByVal e As EventArgs） 
ViewState（"date"） = calBegin.SelectedDate 
End Sub 
You need to ensure that the calBegin Calendar control maintains the selected date. Which code segment should you insert in the constructor of the page？ （）

You create a Microsoft ASP.NET application by using the...

单项选择题

You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. 
You create a page that contains the following control. 
 You write the following code segment in the code-behind file for the page.
void LoadDate（object sender， EventArgs e） { if （IsPostBack） { 
calBegin.SelectedDate = 
（DateTime）ViewState["date"]； 
} 
} 
void SaveDate（object sender， EventArgs e） { 
ViewState["date"] = calBegin.SelectedDate； 
} 
You need to ensure that the calBegin Calendar control maintains the selected date. Which code segment should you insert in the constructor of the page？（）

You create a Microsoft ASP.NET application by using the...

单项选择题

You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. 
You create a Web page that has a GridView control named GridView1. The GridView1 control displays the 
data from a database named Region and a table named Location. 
You write the following code segment to populate the GridView1 control. （Line numbers are included for reference only.） 
01 Protected Sub Page_Load（ByVal sender As Object， _ ByVal e As EventArgs） 
02 Dim connstr As String 
03 ... 
04 SqlDependency.Start（connstr） 
05 Using connection As New SqlConnection（connstr） 
06 Dim sqlcmd As New SqlCommand（） 
07 Dim expires As DateTime = DateTime.Now.AddMinutes（30） 
08 Dim dependency As SqlCacheDependency = _ 
09 New SqlCacheDependency（"Region"， "Location"） 
10 Response.Cache.SetExpires（expires） 
11 Response.Cache.SetValidUntilExpires（True） 
12 Response.AddCacheDependency（dependency） 
13 
14 sqlcmd.Connection = connection 
15 GridView1.DataSource = sqlcmd.ExecuteReader（） 
16 GridView1.DataBind（） 
17 End Using
18 End Sub 
You need to ensure that the proxy servers can cache the content of the GridView1 control. Which code segment should you insert at line 13？ （）
| English | Chinese | Japan | Korean | - 90 - Test Information Co.， Ltd. All rights reserved.