单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5.  You plan to submit text that contains HTML code to a page in the application.  You need to ensure that the HTML code can be submitted successfully without affecting other applications that run on the Web server.  What should you do？（）

单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5.  You plan to submit text that contains HTML code to a page in the application.  You need to ensure that the HTML code can be submitted successfully without affecting other applications that run on the Web server.  What should you do？（）

单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5.  You write the following code fragment. （Line numbers are included for reference only.） You need to ensure that the error message displayed in the validation control is also displayed in the validation summary list.  What should you do？（）