试题详情
- 单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You create an AJAX-enabled Web form by using the following code fragment：
... When the updFirstPanel UpdatePanel control is updated， a dynamic client script is registered. You write the following code segment in the code-behind file of the Web form： 01 protected void Page_Load（object sender， EventArgs e） 02 { 03 if（IsPostBack） 04 { 05 string generatedScript = ScriptGenerator.GenerateScript（）； 06 ► 07 } 08 } You need to ensure that the client-script code is registered only when an asynchronous postback is issued on the updFirstPanel UpdatePanel control. Which code segment should you insert at line 06？ （）
A、A
B、B
C、C
D、D
- D
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