- 搜標題
- 搜題干
- 搜選項
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.
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