试题详情
- 单项选择题 You are creating a Windows Forms Application by using the .NET Framework 3.5.You plan to design a new control that will be used on multiple forms in the app.You need to ensure that the control meets the following requirement： （1）It retrieves data from a MSSQL Server 2008 database instance. （2）It uses WPF classes to display data. （3）It uses user-customizable actions when the control is first painted on the form. What should you do？（）
A、Create a new custom class for the control that is derived from the Control class.
B、Create a new custom class for the control that is derived from the UserControl class.
C、Create a new custom class for the control that is derived from the ContentControl class.
D、Create a new custom class for the control that is derived from the ContentPresenter class.
- B
关注下方微信公众号，在线模考后查看
热门试题