单项选择题 You create a custom control named OrderForm.  You write the following code segment.  public delegate void  CheckOrderFormEventHandler(EventArgs e);  private static readonly object CheckOrderFormKey  = new object();  public event CheckOrderFormEventHandler  CheckOrderForm {  add {  Events.AddHandler(CheckOrderFormKey, value);  }  remove {  Events.RemoveHandler(CheckOrderFormKey,  value);  }  }  You need to provide a method that enables the OrderForm control to raise the CheckOrderForm event.  Which code segment should you use?（）

单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5.  You create a composite custom control named MyControl.  You need to add an instance of the OrderFormData control to the MyControl control.  | English | Chinese | Japan | Korean | - 18 - Test Information Co., Ltd. All rights reserved.  Which code segment should you use? （）

单项选择题 You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version  3.5.  You create a composite custom control named MyControl.  You need to add an instance of the OrderFormData control to the MyControl control.  Which code segment should you use? （） | English | Chinese | Japan | Korean | - 17 - Test Information Co., Ltd. All rights reserved.