2013年微軟認(rèn)證考試_70-562練習(xí)4

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    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) {
    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);
    }
    Answer: B
    QUESTION 8
    You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5.
    You add a TextBox control named TextBox1.
    You write the following code segment for validation.
    protected void CustomValidator1_ServerValidate( object source, ServerValidateEventArgs args) {
     DateTime dt = String.IsNullOrEmpty(args.Value)
     DateTime.Now : Convert.ToDateTime(args.Value);
     args.IsValid = (DateTime.Now - dt).Days < 10;
    }
    You need to validate the value of TextBox1.
    Which code fragment should you add to the Web page?
    A.
    
    
    B.
    
    ">
    
    C.
    
    ">
    D.
    
    ">
    Answer: A