2013微软认证考试练习题及答案（18）[1]

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QUESTION 6
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?

A.

protected override void CreateChildControls() {

Controls.Clear();

OrderFormData oFData = new OrderFormData("OrderForm");

Controls.Add(oFData);

}

B.

protected override void RenderContents(HtmlTextWriter writer) {

OrderFormData oFData = new OrderFormData("OrderForm");

oFData.RenderControl(writer);

}

C.

protected override void EnsureChildControls() {

Controls.Clear();

OrderFormData oFData = new OrderFormData("OrderForm");

oFData.EnsureChildControls();

if (!ChildControlsCreated) CreateChildControls();

}

D.

protected override ControlCollection CreateControlCollection() {

ControlCollection controls = new ControlCollection(this);

OrderFormData oFData = new OrderFormData("OrderForm");

controls.Add(oFData);

return controls;

}

Answer: A

QUESTION 7
You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5.
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?

A.

protected virtual void OnCheckOrderForm(EventArgs e)微软认证(MCSE)