You create a Web Form. The Web Form uses the FormView control to enable a user to edit a record in the database. When the user clicks the Update button on the FormView control, the application must validate that the user has entered data in all of the fields. You need to ensure that the Web Form does not update if the user has not entered data in all of the fields. Which code segment should you use？（）
1、You create a Web Form that contains a
You create a Web Form that contains a TreeView control. The TreeView control allows users to navigate within the Marketing section of your Web...
2、You are creating a Web Form. The Web
You are creating a Web Form. The Web Form allows users to rename or delete products in a list. You create a DataTable named dtProducts that...
3、You are creating a Web Form. The Web
You are creating a Web Form. The Web Form allows users to rename or delete products in a list. You create a DataTable named dtProducts that...
4、You create a Web Form. The Web Form al
You create a Web Form. The Web Form allows users to log on to a Web site. You implement the login logic using a Login control named Login1...
5、You are creating a Web Form. You write
You are creating a Web Form. You write the following code segment to create a SqlCommand object.Dim conn As SqlConnection = New SqlConnection(c...
6、You create a Web Form. The Web Form al
You create a Web Form. The Web Form allows users to recover their passwords. You add a PasswordRecovery server control by using the following...