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单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5.  You create a login Web form by using the following code fragment.   | English | Chinese | Japan | Korean | - 153 - Test Information Co., Ltd. All rights reserved.      When a user clicks the btnLogin Button control, the login() client-side script is called to authenticate the  user. The credentials provided in the TextBox controls are used to call the client-side script.  You also add the following client-script code fragment in the Web form. (Line numbers are included for reference only.) 01   02 function login() {  03 var username = $get(’txtUser’).value;  04 var password = $get(’txtPassword’).value;  05  06 // authentication logic.  07 }  08 function onLoginCompleted(validCredentials, userContext,  09 methodName)  10 {  11 // notify user on authentication result.  12 }  13  14 function onLoginFailed(error, userContext, methodName)  15 {  16 // notify user on authentication exception.  17 }  18   The ASP.NET application is configured to use Forms Authentication. The ASP.NET AJAX authentication  service is activated in the Web.config file.  You need to ensure that the following workflow is maintained:  ¡;¤On successfu authentication, the onLoginCompleted client-script function is called to notify the user.  | English | Chinese | Japan | Korean | - 154 - Test Information Co., Ltd. All rights reserved. ¡;¤On failure of authentication, the onLoginFailed clien-script function is called to display an error message.  Which code segment should you insert at line 06?()

A、A

B、B

C、C

D、D

  • A
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