单项选择题
You create a Web Form. The Web Form allows users to calculate values and display the results in a label named lblResults. You need to capture all unhandled exceptions on the Web Form through the Error event. The Error event must capture each unhandled exception and display it on the Web Form.
Which code segment should you use?（）
A.
B.
C.
D.
相关考题
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单项选择题
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？（）
A.
B.
C.
D.
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多项选择题
You are creating a composite control for capturing user address information in a Web application. You define a number of properties that the user can set at design time. You need to group these properties in the Properties dialog box. In addition, you need to ensure that when users click on a particular property, they receive a short explanation of that property. The properties are shown in the exhibit. Which two actions should you perform?（）
A. Attach the Category attribute class to the controls class definition. Set its value to UserAddress. Mark the class as public.
B. Attach the Browsable attribute class to each property in the group. Set its value to True. Mark the property as private.
C. Attach the Category attribute class to each property in the group. Set its value to UserAddress. Mark the property as public.
D. Attach the Description attribute class to each property in the group. Set each value to a description of the given property.
E. Attach the DefaultProperty attribute class to each property in the group. Set each value to a description of the given property. -
多项选择题
You create a server control that inherits from WebControl. You need to enable the server control to emit markup for a new kind of mobile device. You must not alter the code in the server controls. Which two actions should you perform?（）
A. Create a class that inherits HtmlTextWriter and that can emit the new markup.
B. Create a class that inherits StreamWriter and that can emit the new markup.
C. Reference the class in the <capabilities> element of the new device's browser definition file.
D. Reference the class in the <controlAdapters> element of the new device's browser definition file.
