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2012年微软认证考试考前冲刺试题3
QUESTION 5
You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5.
You create the following controls:
A composite custom control named MyControl.
A templated custom control named OrderFormData.
You write the following code segment to override the method named CreateChildControls() in the MyControl class. (Line numbers are included for reference only.)
01 protected override void
02 CreateChildControls() {
03 Controls.Clear();
04 OrderFormData oFData = new
05 OrderFormData("OrderForm");
06
07 }
You need to add the OrderFormData control to the MyControl control.
Which code segment should you insert at line 06?
A.Template.InstantiateIn(this); this.Controls.Add(oFData);
B.Template.InstantiateIn(oFData); Controls.Add(oFData);
C.this.TemplateControl = (TemplateControl)Template; -Can’t Remember All-???
oFData.TemplateControl = (TemplateControl)Template;
Controls.Add(oFData);
D.this.TemplateControl = (TemplateControl)oFData; -Can’t Remember All-???
Controls.Add(oFData);
Answer: B
QUESTION 6
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) {
CheckOrderFormEventHandler checkOrderForm = (CheckOrderFormEventHandler)Events[ typeof(CheckOrderFormEventHandler)];
if (checkOrderForm != null) checkOrderForm(e); }
B.
protected virtual void OnCheckOrderForm(EventArgs e) {
CheckOrderFormEventHandler checkOrderForm = Events[CheckOrderFormKey] as CheckOrderFormEventHandler;
if (checkOrderForm != null) checkOrderForm(e); }
C.
CheckOrderFormEventHandler checkOrderForm = new CheckOrderFormEventHandler(checkOrderFormCallBack);
protected virtual void OnCheckOrderForm(EventArgs e) {
if (checkOrderForm != null) checkOrderForm(e);
}
D.
CheckOrderFormEventHandler checkOrderForm = new CheckOrderFormEventHandler(checkOrderFormCallBack);
protected virtual void OnCheckOrderForm(EventArgs e) {
if (checkOrderForm != null) RaiseBubbleEvent(checkOrderForm, e);
}