单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5.  You create a class that contains the following code segment. (Line numbers are included for reference only.)  01 Public Function GetCachedProducts( _ ByVal conn As SqlConnection) As Object  02  03 If Cache("products") Is Nothing Then  04 Dim cmd As New SqlCommand("SELECT * FROM Products", conn)  05 conn.Open()  06 Cache.Insert("products", GetData(cmd))  07 conn.Close()  08 End If  09 Return Cache("products")  10 End Function  11  12 Public Function GetData(ByVal prodCmd As SqlCommand) As Object  13 14 End Function  Each time a Web form has to access a list of products, the GetCachedProducts method is called to provide this list from the Cache object.  You need to ensure that the list of products is always available in the Cache object. Which code segment should you insert at line 13?（）

单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5.  You create a class that contains the following code segment. (Line numbers are included for reference  | English | Chinese | Japan | Korean | - 43 - Test Information Co., Ltd. All rights reserved. only.)  01 public object GetCachedProducts(sqlConnection conn) {  02  03 if (Cache["products"] == null) {  04 SqlCommand cmd = new SqlCommand(  05 "SELECT * FROM Products", conn);  07 conn.Open();  08 Cache.Insert("products", GetData(cmd));  09 conn.Close();  10 }  11 return Cache["products"];  12 }  13  14 public object GetData(SqlCommand prodCmd) {  15  16 }  Each time a Web form has to access a list of products, the GetCachedProducts method is called to provide this list from the Cache object.  You need to ensure that the list of products is always available in the Cache object. Which code segment should you insert at line 15? （）

单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5.  You add a Web form that contains the following code fragment.  AllowSorting="True" DataSourceID="Products">   SelectMethod="GetData" TypeName="DAL" />  | English | Chinese | Japan | Korean | - 42 - Test Information Co., Ltd. All rights reserved.   You write the following code segment for the GetData method of the DAL class. (Line numbers are included for reference only.)  01 Public Function GetData() As Object  02 Dim cnn As New SqlConnection( 03  Dim strQuery As String = "SELECT * FROM Products"  04  05 End Function  You need to ensure that the user can use the sorting functionality of the gvProducts GridView control.  Which code segment should you insert at line 04?（）