70-502CSharpChinese Exam
TS: Microsoft .NET Framework 3.5-Windows Presentation Foundation
- Exam Number/Code : 70-502CSharpChinese
- Exam Name : TS: Microsoft .NET Framework 3.5-Windows Presentation Foundation
- Questions and Answers : 110 Q&As
- Update Time: 2011-09-21
- Price:
$ 119.00$ 69.00
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Microsoft TS 70-502CSharpChinese exam braindumps questions and answers
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Exam : Microsoft 70-502
¡¡¡¡¡¡¡¡¡¡¡¡¡¡CSharpChinese
Title : TS: Microsoft .NET Framework 3.5 - Windows Presentation Foundation
1. ÄúÕýÔÚʹÓà Microsoft .NET Framework 3.5 ´´½¨Ò»¸ö Windows Presentation Foundation Ó¦ÓóÌÐò¡£
ÄúÔڴ˳ÌÐòÖаüº¬Á˹¦ÄÜÒÔ½â¾ö´°¿ÚÐÐΪÎÊÌâ¡£
ÄúÐèÒªÔÚ´°¿ÚÖÐÊó±êµ¥»÷µÄλÖÃÏÔʾ UI ÔªËØÁÐ±í¡£Äú»¹ÐèҪȷ±£´ËÔªËØÁбíÏÔʾÔÚÏûÏ¢¿òÖС£
ÄúÓ¦¸Ã½«ÏÂÃæÄĸö´úÂë¶Î°üÀ¨ÔÚ´úÂëÒþ²ØÎļþÖУ¿
A. Dim controlsToDisplay As String = String.Empty
Private Sub Window_MouseDown(ByVal sender As Object, _
ByVal e As MouseButtonEventArgs)
controlsToDisplay = CType(sender, UIElement).ToString()
MessageBox.Show(controlsToDisplay)
End Sub
B. Dim controlsToDisplay As String = String.Empty
Private Sub Window_MouseDown(ByVal sender As Object, _
ByVal e As MouseButtonEventArgs)
For i = 0 To VisualChildrenCount - 1
controlsToDisplay += GetVisualChild(i).ToString() + "rn"
Next
MessageBox.Show(controlsToDisplay)
End Sub
C. Dim controlsToDisplay As String = String.Empty
Private Sub Window_MouseDown(ByVal sender As Object, _
ByVal e As MouseButtonEventArgs)
Dim myVisual As Visual()
For i = 0 To VisualTreeHelper.GetChildrenCount(CType(sender, _
Visual)) - 1
myVisual(i) = CType(VisualTreeHelper.GetChild(CType(sender, _
Visual), i), Visual)
controlsToDisplay += myVisual.GetType().ToString() + "rn"
Next
MessageBox.Show(controlsToDisplay)
End Sub
D. Dim controlsToDisplay As String = String.Empty
Private Sub Window_MouseDown(ByVal sender As Object, _
ByVal e As MouseButtonEventArgs)
Dim pt As Point = e.GetPosition(Me)
VisualTreeHelper.HitTest(Me, Nothing, _
New HitTestResultCallback(AddressOf HitTestCallback), _
New PointHitTestParameters(pt))
MessageBox.Show(controlsToDisplay)
End Sub
Private Function HitTestCallback(ByVal result As HitTestResult) As _
HitTestResultBehavior
controlsToDisplay += result.VisualHit.GetType().ToString() + "rn"
Return HitTestResultBehavior.Continue
End Function
Answer: D
2. ÄúÕýÔÚʹÓà Microsoft .NET Framework 3.5 ´´½¨Ò»¸ö Windows Presentation Foundation Ó¦ÓóÌÐò¡£
ÄúÔڴ˳ÌÐòÖаüº¬Á˹¦ÄÜÒÔ½â¾ö´°¿ÚÐÐΪÎÊÌâ¡£
ÄúÐèÒªÔÚ´°¿ÚÖÐÊó±êµ¥»÷µÄλÖÃÏÔʾ UI ÔªËØÁÐ±í¡£Äú»¹ÐèҪȷ±£´ËÔªËØÁбíÏÔʾÔÚÏûÏ¢¿òÖС£
ÄúÓ¦¸Ã½«ÏÂÃæÄĸö´úÂë¶Î°üÀ¨ÔÚ´úÂëÒþ²ØÎļþÖУ¿
A. string controlsToDisplay = string.Empty;
private void Window_MouseDown(object sender, MouseButtonEventArgs e) {
controlsToDisplay = ((UIElement)sender).ToString();
MessageBox.Show(controlsToDisplay);
}
B. string controlsToDisplay = string.Empty;
private void Window_MouseDown(object sender, MouseButtonEventArgs e) {
for (int i = 0; i < this.VisualChildrenCount; i++) {
controlsToDisplay + = this.GetVisualChild(i).ToString() + "rn";
}
MessageBox.Show(controlsToDisplay);
}
C. string controlsToDisplay = string.Empty;
private void Window_MouseDown (object sender, MouseButtonEventArgs e)
{
Visual myVisual;
for (int i = 0; i < VisualTreeHelper.GetChildrenCount(sender as
Visual); i++) {
myVisual = (Visual)VisualTreeHelper.GetChild(sender as Visual, i);
controlsToDisplay += myVisual.GetType().ToString() + "rn";
}
MessageBox.Show(controlsToDisplay);
}
D. string controlsToDisplay = string.Empty;
private void Window_MouseDown(object sender, MouseButtonEventArgs e) {
Point pt = e.GetPosition(this);
VisualTreeHelper.HitTest(this, null, new
HitTestResultCallback(HitTestCallback), new
PointHitTestParameters(pt));
MessageBox.Show(controlsToDisplay);
}
private HitTestResultBehavior HitTestCallback(HitTestResult result) {
controlsToDisplay += result.VisualHit.GetType().ToString() + "rn";
return HitTestResultBehavior.Continue;
}
Answer: D
3. ÄúʹÓà Microsoft .NET Framework 3.5 ´´½¨Ò»¸ö Windows Presentation Foundation Ó¦ÓóÌÐò¡£
¸ÃÓ¦ÓóÌÐòÃûΪ EnterpriseApplication.exe¡£
ÄúʹÓÃÉè¼ÆÆ÷ÔÚÓû§×÷ÓÃÓò¼¶±ðÏò Settings.settings ÎļþÖÐÌí¼Ó WindowSize ²ÎÊýºÍ WindowPosition ²ÎÊý¡£´°¿ÚµÄ´óСºÍλÖÃÊÇ´ÓÓû§ÅäÖÃÎļþ¶ÁÈ¡µÄ¡£
¸ÃÓ¦ÓóÌÐò±ØÐëÕë¶Ôÿ¸öÖ´ÐÐËüµÄÓû§±£³Ö×î³õµÄ´°¿Ú´óСºÍλÖá£
ÄúÐèҪȷ±£Âú×ãÒÔÏÂÒªÇó£º
¡¤Ã¿¸öÓû§µÄ´°¿Ú´óС¶¼±£´æÔÚÓû§ÅäÖÃÎļþÖС£
¡¤ÔÚÓû§Í˳öÓ¦ÓóÌÐòºó±£ÁôÓû§ÉèÖá£
ÄúÓ¦¸ÃʹÓÃÄĸöÅäÖÃÉèÖã¿
A. private void OnClosing(object sender,
System.ComponentModel.CancelEventArgs e){
Settings.Default.WindowPosition = new Point (this.Left,
this.Top);
Settings.Default.WindowSize = new Size (this.Width,
this.Height);
Settings.Default.Save();
}
B. private void OnClosing(object sender,
System.ComponentModel.CancelEventArgs e){
RegistryKey appKey =
Registry.CurrentUser.CreateSubKey("Software\EnterpriseApplication");
RegistryKey settingsKey = appKey.CreateSubKey("WindowSettings");
RegistryKey windowPositionKey =
settingsKey.CreateSubKey("WindowPosition");
RegistryKey windowSizeKey = settingsKey.CreateSubKey("WindowSize");
windowPositionKey.SetValue("X", this.Left);
windowPositionKey.SetValue("Y", this.Top);
windowSizeKey.SetValue("Width", this.Width);
windowSizeKey.SetValue("Height", this.Height);
}
C. private void OnClosing(object sender,
System.ComponentModel.CancelEventArgs e){
XmlDocument doc = new XmlDocument();
doc.Load("EnterpriseApplication.exe.config");
XmlNode nodePosition =
doc.SelectSingleNode("//setting[@name='WindowPosition']");
nodePosition.ChildNodes[0].InnerText = String.Format("{0},{1}",
this.Left, this.Top);
XmlNode nodeSize =
doc.SelectSingleNode("//setting[@name='WindowSize']");
nodeSize.ChildNodes[0].InnerText = String.Format("{0},{1}",
this.Width, this.Height);
doc.Save("UserConfigDistractor2.exe.config");
}
D. private void Window_Closing(object sender,
System.ComponentModel.CancelEventArgs e){
StreamWriter sw =
new StreamWriter("EnterpriseApplication.exe.config", true);
sw.WriteLine("<EnterpriseApplication.Properties.Settings>");
sw.WriteLine("<setting name=
"WindowSize" serializeAs="String">");
sw.WriteLine(String.Format("<value>{0},{1}</value>",
this.Width, this.Height));
sw.WriteLine("</setting>");
sw.WriteLine("<setting name=
"WindowPosition" serializeAs="String">");
sw.WriteLine(String.Format("<value>{0},{1}</value>", this.Left,
this.Top));
sw.WriteLine("</setting>");
sw.WriteLine("</UserConfigProblem.Properties.Settings>");
sw.Close();
}
Answer: A
4. ÄúÕýÔÚʹÓà Microsoft .NET Framework 3.5 ´´½¨Ò»¸ö Windows Presentation Foundation Ó¦ÓóÌÐò¡£
¸ÃÓ¦ÓóÌÐòʹÓÃÈô¸É¸öÒì²½²Ù×÷À´¼ÆËãÏÔʾ¸øÓû§µÄÊý¾Ý¡£ÃûΪ tommorowsWeather µÄ²Ù×÷Ö´Ðн«ÓÉÆäËû²Ù×÷ʹÓõļÆËã¡£
ÄúÐèҪȷ±£ tommorowsWeather ÒÔ¾¡¿ÉÄܸߵÄÓÅÏȼ¶ÔËÐС£
ÄúÓ¦¸ÃʹÓÃÄĸö´úÂë¶Î£¿
A. tomorrowsWeather.Dispatcher.BeginInvoke(
System.Windows.Threading.DispatcherPriority.Normal,
new OneArgDelegate(UpdateUserInterface),
weather);
B. tomorrowsWeather.Dispatcher.BeginInvoke(
System.Windows.Threading.DispatcherPriority.DataBind,
new OneArgDelegate(UpdateUserInterface),
weather);
C. tomorrowsWeather.Dispatcher.BeginInvoke(
System.Windows.Threading.DispatcherPriority.Send,
new OneArgDelegate(UpdateUserInterface),
weather);
D. tomorrowsWeather.Dispatcher.BeginInvoke(
System.Windows.Threading.DispatcherPriority.Render,
new OneArgDelegate(UpdateUserInterface),
weather);
Answer: C
5. ÄúÕýÔÚʹÓà Microsoft .NET Framework 3.5 ´´½¨Ò»¸ö Windows Presentation Foundation Ó¦ÓóÌÐò¡£
ÄúÏò Window ÔªËØÖÐÌí¼ÓÒ»¸ö CommandBinding ÔªËØ¡£¸ÃÃüÁî¾ßÓÐÒ»¸ö¼üÅ̱ÊÊÆ Ctrl+H¡£Window ÔªËØÖаüº¬ÏÂÃæµÄ MenuItem ¿Ø¼þ¡£
<MenuItem Header="Highlight Content"
Command="local:CustomCommands.Highlight" />
ÄúÐèҪȷ±£µ±½¹µãÇл»µ½²»°üº¬ÈκÎÎı¾µÄ TextBox ¿Ø¼þʱ£¬MenuItem ¿Ø¼þ´¦ÓÚ½ûÓÃ״̬¶øÇÒ¸ÃÃüÁî²»¿ÉÖ´ÐС£
ÄúÓ¦¸ÃÔõô°ì£¿
A. ÔÚ TextBox ¿Ø¼þµÄ GotFocus ʼþ´¦Àí³ÌÐòÖУ¬ÉèÖà MenuItem ¿Ø¼þµÄ IsEnabled ÊôÐÔ¡£
B. ½«¸ÃÃüÁîµÄ CanExecute ÊôÐÔÉèÖÃΪ Highlight_CanExecute¡£
½«ÒÔÏ·½·¨Ìí¼Óµ½¸Ã´°¿ÚµÄ´úÂëÒþ²ØÎļþÖС£
private void Highlight_CanExecute(object sender, CanExecuteEventArgs e) {
TextBox txtBox = sender as TextBox;
e.CanExecute = (txtBox.Text.Length > 0);
}
C. ½«¸ÃÃüÁîµÄ CanExecute ÊôÐÔÉèÖÃΪ Highlight_CanExecute¡£
½«ÒÔÏ·½·¨Ìí¼Óµ½¸Ã´°¿ÚµÄ´úÂëÒþ²ØÎļþÖС£
private void Highlight_CanExecute(object sender, CanExecuteEventArgs e) {
TextBox txtBox = e.Source as TextBox;
e.CanExecute = (txtBox.Text.Length > 0);
}
D. ½«¸ÃÃüÁîµÄ CanExecute ÊôÐÔÉèÖÃΪ Highlight_CanExecute¡£
½«ÒÔÏ·½·¨Ìí¼Óµ½¸Ã´°¿ÚµÄ´úÂëÒþ²ØÎļþÖС£
private void Highlight_CanExecute(object sender, CanExecuteEventArgs e) {
MenuItem menu = e.Source as MenuItem;
TextBox txtBox = menu.CommandTarget as TextBox;
Menu.IsEnabled = (txtBox.Text.Length > 0);
}
Answer: C
6. ÄúÕýÔÚ½« Windows ´°ÌåÓ¦ÓóÌÐòת»»Îª Windows Presentation Foundation (WPF) Ó¦ÓóÌÐò¡£ÄúʹÓà Microsoft .NET Framework 3.5 ´´½¨¸Ã WPF Ó¦ÓóÌÐò¡£
¸Ã WPF Ó¦ÓóÌÐò½«ÖØÓÃ´Ë Windows ´°ÌåÓ¦ÓóÌÐòµÄ 30 ¸ö´°Ìå¡£
¸Ã WPF Ó¦ÓóÌÐòÖаüº¬ÏÂÃæµÄÀඨÒå¡£
public class OwnerWindow :
System.Windows.Forms.IWin32Window
{
private IntPtr handle;
public IntPtr Handle
{
get { return handle; }
set { handle=value; }
}
}
ÄúÔڸà WPF Ó¦ÓóÌÐòÖбàдÒÔÏ´úÂë¶Î¡££¨Ëù°üÀ¨µÄÐкŽö¹©²Î¿¼¡££©
01 public DialogResult LaunchWindowsFormsDialog(
02 Form dialog, Window wpfParent)
03 {
04 WindowInteropHelper helper=new
05 WindowInteropHelper(wpfParent);
06 OwnerWindow owner=new OwnerWindow();
07
08 }
ÄúÐèҪȷ±£¸ÃÓ¦ÓóÌÐòÄܹ»ÒÔģʽ¶Ô»°¿òÐÎʽÆô¶¯¿ÉÖØÓõĴ°Ìå¡£
ÄúÓ¦¸ÃÔÚµÚ 07 Ðд¦²åÈëÄĸö´úÂë¶Î£¿
A. owner.Handle = helper.Owner;
return dialog.ShowDialog(owner);
B. owner.Handle = helper.Handle;
return dialog.ShowDialog(owner);
C. owner.Handle = helper.Owner;
bool? result = wpfParent.ShowDialog();
if (result.HasValue)
return result.Value System.Windows.Forms.DialogResult.OK :
System.Windows.Forms.DialogResult.Cancel;
else
return System.Windows.Forms.DialogResult.Cancel;
D. owner.Handle = helper.Handle;
bool? result = wpfParent.ShowDialog();
if (result.HasValue)
return result.Value System.Windows.Forms.DialogResult.OK :
System.Windows.Forms.DialogResult.Cancel;
else
return System.Windows.Forms.DialogResult.Cancel;
Answer: B
7. ÄúʹÓà Windows Presentation Foundation ºÍ Microsoft .NET Framework 3.5 ´´½¨Ò»¸ö´°Ìå¡£¸Ã´°ÌåÖаüº¬Ò»¸ö״̬À¸¡£
Äú´òËãÏò¸Ã״̬À¸Ìí¼ÓÒ»¸ö ProgressBar ¿Ø¼þ¡£
ÄúÐèҪȷ±£ ProgressBar ¿Ø¼þÏÔʾÄúÎÞ·¨Ô¤²âÍê³Éʱ¼äµÄÈÎÎñµÄ½ø¶È¡£
ÄúÓ¦¸ÃʹÓÃÄĸö´úÂë¶Î£¿
A. progbar.IsIndeterminate = true;
B. progbar.IsIndeterminate = false;
C. progbar.HasAnimatedProperties = true;
D. progbar.HasAnimatedProperties = false;
Answer: A
8. ÄúÕýÔÚʹÓà Microsoft .NET Framework 3.5 ´´½¨Ò»¸ö Windows Presentation Foundation (WPF) Ó¦ÓóÌÐò¡£
¸Ã WPF Ó¦ÓóÌÐòÓÐÒ»¸öÃûΪ rootGrid µÄ Grid ¿Ø¼þ¡£
Äú±àдÒÔÏ XAML ´úÂëƬ¶Î¡£
<Window x:Class="MCP.HostingWinFormsControls"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/
presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="HostingWinFormsControls"
Loaded="Window_Loaded">
<Grid x:Name="rootGrid">
</Grid>
</Window>
ÄúÐèҪȷ±£Ã¿´Î´ò¿ª WPF ´°¿Úʱ£¬¶¼»áÏò rootGrid ÖÐÌí¼ÓÒ»¸öÃûΪ MyCustomFormsControl µÄ Windows ´°Ìå¿Ø¼þ¡£
ÄúÓ¦¸ÃʹÓÃÄĸö´úÂë¶Î£¿
A. private void Window_Loaded(object sender, RoutedEventArgs e)
{
WindowsFormsHost host = new WindowsFormsHost();
MyCustomFormsControl formsControl = new MyCustomFormsControl();
host.Child = formsControl;
rootGrid.Children.Add(host);
}
B. private void Window_Loaded(object sender, RoutedEventArgs e)
{
ElementHost host = new ElementHost();
MyCustomFormsControl formsControl=new MyCustomFormsControl();
host.Child=formsControl;
rootGrid.Children.Add(host);
}
C. private void Window_Loaded(object sender, RoutedEventArgs e)
{
MyCustomFormsControl formsControl=new MyCustomFormsControl();
formsControl.CreateControl();
HwndSource source = HwndSource.FromHwnd(formsControl.Handle);
UIElement formsElement = source.RootVisual as UIElement;
rootGrid.Children.Add(formsElement);
}
D. private void Window_Loaded(object sender, RoutedEventArgs e)
{
MyCustomFormsControl formsControl=new MyCustomFormsControl();
formsControl.CreateControl();
HwndTarget target = new HwndTarget(formsControl.Handle);
UIElement formsElement = target.RootVisual as UIElement;
rootGrid.Children.Add(formsElement);
}
Answer: A
9. ÄúÕýÔÚʹÓà Microsoft .NET Framework 3.5 ´´½¨Ò»¸ö Windows Presentation Foundation Ó¦ÓóÌÐò¡£
Äú±àдÒÔÏ´úÂë¶Î£¨Ëù°üÀ¨µÄÐкŽö¹©²Î¿¼£©¡£
01 Dim content As Object
02 Dim fileName As String = "theFile"
03 Using xamlFile As New FileStream(fileName & ".xaml", _
04 FileMode.Open, FileAccess.Read)
06 content = TryCast(XamlReader.Load(xamlFile), Object)
07 End Using
08 Using container As Package = Package.Open(fileName & ".xps", _
09 FileMode.Create)
10
11 End Using
ÄúÐèҪȷ±£Âú×ãÒÔÏÂÒªÇó£º
¡¤´ËÓ¦ÓóÌÐò½«ÏÖÓÐÁ÷Îĵµ×ª»»Îª XPS Îĵµ¡£
¡¤XPS ÎĵµÊ¹ÓÃÁ÷Îĵµ¸ñʽÉú³É¡£
¡¤XPS ÎĵµµÄ´óСΪ¿ÉÄܵÄ×îСֵ¡£
ÄúÓ¦¸ÃÔÚµÚ 10 ÐвåÈëÏÂÃæÄĸö´úÂë¶Î£¿
A. Using xpsDoc As New XpsDocument(container, _
CompressionOption.SuperFast)
Dim rsm As XpsSerializationManager = New _
System.Windows.Xps.XpsSerializationManager(New _
XpsPackagingPolicy(xpsDoc), False)
rsm.SaveAsXaml(paginator)
End Using
B. Using xpsDoc As New XpsDocument(container, _
CompressionOption.SuperFast)
Dim rsm As New XpsSerializationManager(New _
XpsPackagingPolicy(xpsDoc), False)
rsm.Commit()
End Using
C. Using xpsDoc As New XpsDocument(container, _
CompressionOption.Maximum)
Dim rsm As New XpsSerializationManager(New _
XpsPackagingPolicy(xpsDoc), False)
Dim paginator As DocumentPaginator = (CType(content, _
IDocumentPaginatorSource)).DocumentPaginator
rsm.SaveAsXaml(paginator)
End Using
D. Using xpsDoc As New XpsDocument(container, _
CompressionOption.SuperFast)
Dim rsm As New XpsSerializationManager(New _
XpsPackagingPolicy(xpsDoc), False)
Dim paginator As DocumentPaginator = (CType(content, _
IDocumentPaginatorSource)).DocumentPaginator
rsm.SaveAsXaml(paginator)
End Using
Answer: C
10. ÄúÕýÔÚʹÓà Microsoft .NET Framework 3.5 ´´½¨Ò»¸ö Windows Presentation Foundation Ó¦ÓóÌÐò¡£
Äú±àдÒÔÏ´úÂë¶Î£¨Ëù°üÀ¨µÄÐкŽö¹©²Î¿¼£©¡£
01 Dim content As Object
02 Dim fileName As String = "theFile"
03 Using xamlFile As New FileStream(fileName & ".xaml", _
04 FileMode.Open, FileAccess.Read)
06 content = TryCast(XamlReader.Load(xamlFile), Object)
07 End Using
08 Using container As Package = Package.Open(fileName & ".xps", _
09 FileMode.Create)
10
11 End Using
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¡¤´ËÓ¦ÓóÌÐò½«ÏÖÓÐÁ÷Îĵµ×ª»»Îª XPS Îĵµ¡£
¡¤XPS ÎĵµÊ¹ÓÃÁ÷Îĵµ¸ñʽÉú³É¡£
¡¤XPS ÎĵµµÄ´óСӦΪ¿ÉÄܵÄ×îСֵ¡£
ÄúÓ¦¸ÃÔÚµÚ 10 ÐвåÈëÏÂÃæÄĸö´úÂë¶Î£¿
A. Using xpsDoc As New XpsDocument(container, _
CompressionOption.SuperFast)
Dim rsm As XpsSerializationManager = New _
System.Windows.Xps.XpsSerializationManager(New _
XpsPackagingPolicy(xpsDoc), False)
rsm.SaveAsXaml(paginator)
End Using
B. Using xpsDoc As New XpsDocument(container, _
CompressionOption.SuperFast)
Dim rsm As New XpsSerializationManager(New _
XpsPackagingPolicy(xpsDoc), False)
rsm.Commit()
End Using
C. Using xpsDoc As New XpsDocument(container, _
CompressionOption.Maximum)
Dim rsm As New XpsSerializationManager(New _
XpsPackagingPolicy(xpsDoc), False)
Dim paginator As DocumentPaginator = (CType(content, _
IDocumentPaginatorSource)).DocumentPaginator
rsm.SaveAsXaml(paginator)
End Using
D. Using xpsDoc As New XpsDocument(container, _
CompressionOption.SuperFast)
Dim rsm As New XpsSerializationManager(New _
XpsPackagingPolicy(xpsDoc), False)
Dim paginator As DocumentPaginator = (CType(content, _
IDocumentPaginatorSource)).DocumentPaginator
rsm.SaveAsXaml(paginator)
End Using
Answer: C
11. ÄúÕýÔÚʹÓà Microsoft .NET Framework 5 ´´½¨Ò»¸ö Windows Presentation Foundation Ó¦ÓóÌÐò¡£
¸ÃÓ¦ÓóÌÐò¶¨ÒåÒ»¸ö BrowserWindow Àà¡£BrowserWindow ÀàµÄÿ¸öʵÀýÔÊÐíÓû§ÔÚÒ»¸öµ¥¶ÀµÄ´°¿ÚÖÐä¯ÀÀÍøÕ¾¡£ÔÚ´ò¿ªÐµÄä¯ÀÀÆ÷´°¿Úʱ£¬Óû§½«Öض¨Ïòµ½Ò»¸öÔ¤¶¨ÒåµÄ URL¡£
Äú±àдÒÔÏ´úÂë¶Î¡£
01 private void OpenNewWindow(object sender, RoutedEventArgs e)
02 {
03 Thread newWindowThread = new Thread(new
ThreadStart(NewThreadProc));
04
05 newWindowThread.Start();
06 }
07 private void NewThreadProc()
08 {
09
10 }
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¡¤ÔÚ´´½¨ÆäËûä¯ÀÀÆ÷´°¿Úʱ£¬Ó¦ÓóÌÐòµÄÖ÷´°¿Ú²»±»×èÖ¹¡£
¡¤ÔÚÓ¦ÓóÌÐòµÄÖ÷´°¿Ú¹Ø±Õʱ£¬Ó¦ÓóÌÐò¼´Ö´ÐÐÍê±Ï¡£
ÄúÓ¦¸ÃÔõô°ì£¿
A. ÔÚµÚ 04 Ðд¦²åÈëÒÔÏ´úÂë¶Î¡£
newWindowThread.SetApartmentState(ApartmentState.STA);
newWindowThread.IsBackground = true;
ÔÚµÚ 09 Ðд¦²åÈëÒÔÏ´úÂë¶Î¡£
BrowserWindow newWindow = new BrowserWindow();
newWindow.Show();
Application app = new Application();
app.Run(newWindow);
B. ÔÚµÚ 04 Ðд¦²åÈëÒÔÏ´úÂë¶Î¡£
newWindowThread.IsBackground = true;
ÔÚµÚ 09 Ðд¦²åÈëÒÔÏ´úÂë¶Î¡£
newWindowThread.SetApartmentState(ApartmentState.STA);
BrowserWindow newWindow = new BrowserWindow();
newWindow.Show();
Application app = new Application();
app.Run(newWindow);
C. ÔÚµÚ 04 Ðд¦²åÈëÒÔÏ´úÂë¶Î¡£
newWindowThread.SetApartmentState(ApartmentState.STA);
newWindowThread.IsBackground = false;
ÔÚµÚ 09 Ðд¦²åÈëÒÔÏ´úÂë¶Î¡£
BrowserWindow newWindow = new BrowserWindow();
System.Windows.Threading.Dispatcher.Run();
newWindow.Show();
D. ÔÚµÚ 04 Ðд¦²åÈëÒÔÏ´úÂë¶Î¡£
newWindowThread.SetApartmentState(ApartmentState.STA);
newWindowThread.IsBackground = true;
ÔÚµÚ 09 Ðд¦²åÈëÒÔÏ´úÂë¶Î¡£
BrowserWindow newWindow = new BrowserWindow();
newWindow.Show();
System.Windows.Threading.Dispatcher.Run();
Answer: D
12. ÄúÕýÔÚʹÓà Microsoft .NET Framework 3.5 ´´½¨Ò»¸ö Windows Presentation Foundation Ó¦ÓóÌÐò¡£
´ËÓ¦ÓóÌÐò½«Ê¹Óà FlowDocumentPageViewer ÀàµÄʵÀýÀ´ÏÔʾÎĵµ¡£¸ÃʵÀýµÄÃû³ÆΪ fdpv¡£Óû§¿ÉÒÔÍ»³öÏÔʾÎĵµÄÚÈݲ¢ÎªÆäÌí¼Ó×¢ÊÍ¡£
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A. Protected Sub OnTextInput(ByVal sender As Object, _
ByVal e As RoutedEventArgs)
Dim service As AnnotationService = _
AnnotationService.GetService(fdpv)
If service Is Nothing Then
AnnotationStream = New FileStream("annotations.xml", _
FileMode.Open, FileAccess.ReadWrite)
service = New AnnotationService(fdpv)
Dim store As AnnotationStore = _
New XmlStreamStore(AnnotationStream)
service.Enable(store)
End If
End Sub
Private Sub OnClosing(ByVal sender As Object, _
ByVal e As System.ComponentModel.CancelEventArgs)
Dim service As AnnotationService = _
AnnotationService.GetService(fdpv)
If Not service Is Nothing AndAlso service.IsEnabled Then
service.Store.Flush()
service.Disable()
AnnotationStream.Close()
End If
End Sub
B. Protected Sub OnLoaded(ByVal sender As Object, _
ByVal e As RoutedEventArgs)
Dim service As AnnotationService = _
AnnotationService.GetService(fdpv)
If service Is Nothing Then
AnnotationStream = New FileStream("annotations.xml", _
FileMode.Open, FileAccess.ReadWrite)
service = New AnnotationService(fdpv)
End If
End Sub
Private Sub OnClosing(ByVal sender As Object, _
ByVal e As System.ComponentModel.CancelEventArgs)
Dim service As AnnotationService = _
AnnotationService.GetService(fdpv)
If Not service Is Nothing AndAlso service.IsEnabled Then
service.Store.Flush()
service.Disable()
AnnotationStream.Close()
End If
End Sub
C. Protected Sub OnLoaded(ByVal sender As Object, _
ByVal e As RoutedEventArgs)
Dim service As AnnotationService = _
AnnotationService.GetService(fdpv)
If service Is Nothing Then
AnnotationStream = New FileStream("annotations.xml", _
FileMode.Open, FileAccess.ReadWrite)
service = New AnnotationService(fdpv)
Dim store As AnnotationStore = New _
XmlStreamStore(AnnotationStream)
service.Enable(store)
End If
End Sub
Private Sub OnClosing(ByVal sender As Object, _
ByVal e As System.ComponentModel.CancelEventArgs)
Dim service As AnnotationService = _
AnnotationService.GetService(fdpv)
If Not service Is Nothing AndAlso service.IsEnabled Then
service.Store.Flush()
service.Disable()
AnnotationStream.Close()
End If
End Sub
D. Protected Sub OnLoaded(ByVal sender As Object, _
ByVal e As RoutedEventArgs)
Dim service As AnnotationService = _
AnnotationService.GetService(fdpv)
If service Is Nothing Then
AnnotationStream = New FileStream("annotations.xml", _
FileMode.Open, FileAccess.ReadWrite)
service = New AnnotationService(fdpv)
Dim store As AnnotationStore = New _
XmlStreamStore(AnnotationStream)
service.Enable(store)
End If
End Sub
Private Sub OnClosing(ByVal sender As Object, _
ByVal e As System.ComponentModel.CancelEventArgs)
Dim service As AnnotationService = _
AnnotationService.GetService(fdpv)
If Not service Is Nothing AndAlso service.IsEnabled Then
service.Disable()
AnnotationStream.Close()
End If
End Sub
Answer: C
13. ÄúÕýÔÚʹÓà Microsoft .NET Framework 3.5 ´´½¨Ò»¸ö Windows Presentation Foundation Ó¦ÓóÌÐò¡£
ÄúΪ¸ÃÓ¦ÓóÌÐò´´½¨Ò»¸ö´°¿Ú¡£
ÄúÐèҪȷ±£Âú×ãÒÔÏÂÒªÇó£º
¡¤Ê¹Óà ListBox ¿Ø¼þÒÔË«ÁиñʽÏÔʾ×Ö·û´®Êý×é¡£
¡¤ListBox ¿Ø¼þÖÐÊý¾ÝµÄÁ÷¶¯·½ÏòΪ´Ó×óÏòÓÒ¡¢×ÔÉÏÏòÏ¡£
ÄúÓ¦¸ÃÔõô°ì£¿
A. ʹÓð´ÈçÏ·½Ê½¶¨ÒåµÄ ListBox ¿Ø¼þ¡£
<ListBox Name="myList">
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<UniformGrid Columns="2"/>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
</ListBox>
ʹÓÃÏÂÃæµÄ C# ´úÂ뽫×Ö·û´®Êý×éÓë ListBox ¿Ø¼þ¹ØÁª¡£
myList.ItemsSource = arrayOfString;
B. ʹÓð´ÈçÏ·½Ê½¶¨ÒåµÄ ListBox ¿Ø¼þ¡£
<ListBox Name="myList">
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel />
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
</ListBox>
ʹÓÃÏÂÃæµÄ C# ´úÂ뽫×Ö·û´®Êý×éÓë ListBox ¿Ø¼þ¹ØÁª¡£
myList.ItemsSource = arrayOfString;
C. ʹÓð´ÈçÏ·½Ê½¶¨ÒåµÄ ListBox ¿Ø¼þ¡£
<ListBox Name="myList">
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel />
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
</ListBox>
ʹÓÃÏÂÃæµÄ C# ´úÂ뽫×Ö·û´®Êý×éÓë ListBox ¿Ø¼þ¹ØÁª¡£
myListView.ItemsSource = arrayOfString;
D. ʹÓð´ÈçÏ·½Ê½¶¨ÒåµÄ ListBox ¿Ø¼þ¡£
<ListBox Name="myList">
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition />
</Grid.ColumnDefinitions>
</Grid>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
</ListBox>
ʹÓÃÏÂÃæµÄ C# ´úÂ뽫×Ö·û´®Êý×éÓë ListBox ¿Ø¼þ¹ØÁª¡£
myList.ItemsSource = arrayOfString;
Answer: A
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ÄúÐèҪȷ±£ÎªÎĵµ×÷µÄ×¢Ê͵ÃÒÔ±£´æ£¬ÇÒÕâЩעÊÍÔÚÎĵµÔÙ´ÎÏÔʾʱ³ÊÏÖ³öÀ´¡£
ÄúÓ¦¸ÃʹÓÃÏÂÃæÄĸö´úÂë¶Î£¿
A. protected void OnTextInput(object sender, RoutedEventArgs e) {
AnnotationService service = AnnotationService.GetService(fdpv);
if (service == null) {
AnnotationStream = new FileStream("annotations.xml",
FileMode.Open, FileAccess.ReadWrite);
service = new AnnotationService(fdpv);
AnnotationStore store = new XmlStreamStore(AnnotationStream);
service.Enable(store);
}
}
private void OnClosing(object sender,
System.ComponentModel.CancelEventArgs e) {
AnnotationService service = AnnotationService.GetService(fdpv);
if (service != null && service.IsEnabled) {
service.Store.Flush();
service.Disable();
AnnotationStream.Close();
}
}
B. protected void OnLoaded(object sender, RoutedEventArgs e) {
AnnotationService service = AnnotationService.GetService(fdpv);
if (service == null) {
AnnotationStream = new FileStream("annotations.xml",
FileMode.Open, FileAccess.ReadWrite);
service = new AnnotationService(fdpv);
}
}
private void OnClosing(object sender,
System.ComponentModel.CancelEventArgs e) {
AnnotationService service = AnnotationService.GetService(fdpv);
if (service != null && service.IsEnabled) {
service.Store.Flush();
service.Disable();
AnnotationStream.Close();
}
}
C. protected void OnLoaded(object sender, RoutedEventArgs e) {
AnnotationService service = AnnotationService.GetService(fdpv);
if (service == null) {
AnnotationStream = new FileStream("annotations.xml",
FileMode.Open, FileAccess.ReadWrite);
service = new AnnotationService(fdpv);
AnnotationStore store = new XmlStreamStore(AnnotationStream);
service.Enable(store);
}
}
private void OnClosing(object sender,
System.ComponentModel.CancelEventArgs e) {
AnnotationService service = AnnotationService.GetService(fdpv);
if (service != null && service.IsEnabled) {
service.Store.Flush();
service.Disable();
AnnotationStream.Close();
}
}
D. protected void OnLoaded(object sender, RoutedEventArgs e) {
AnnotationService service = AnnotationService.GetService(fdpv);
if (service == null) {
AnnotationStream = new FileStream("annotations.xml",
FileMode.Open, FileAccess.ReadWrite);
service = new AnnotationService(fdpv);
AnnotationStore store = new XmlStreamStore(AnnotationStream);
service.Enable(store);
}
}
private void OnClosing(object sender,
System.ComponentModel.CancelEventArgs e) {
AnnotationService service = AnnotationService.GetService(fdpv);
if (service != null && service.IsEnabled) {
service.Disable();
AnnotationStream.Close();
}
}
Answer: C
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Exam : Microsoft 70-502
¡¡¡¡¡¡¡¡¡¡¡¡¡¡CSharpChinese
Title : TS: Microsoft .NET Framework 3.5 - Windows Presentation Foundation
1. ÄúÕýÔÚʹÓà Microsoft .NET Framework 3.5 ´´½¨Ò»¸ö Windows Presentation Foundation Ó¦ÓóÌÐò¡£
ÄúÔڴ˳ÌÐòÖаüº¬Á˹¦ÄÜÒÔ½â¾ö´°¿ÚÐÐΪÎÊÌâ¡£
ÄúÐèÒªÔÚ´°¿ÚÖÐÊó±êµ¥»÷µÄλÖÃÏÔʾ UI ÔªËØÁÐ±í¡£Äú»¹ÐèҪȷ±£´ËÔªËØÁбíÏÔʾÔÚÏûÏ¢¿òÖС£
ÄúÓ¦¸Ã½«ÏÂÃæÄĸö´úÂë¶Î°üÀ¨ÔÚ´úÂëÒþ²ØÎļþÖУ¿
A. Dim controlsToDisplay As String = String.Empty
Private Sub Window_MouseDown(ByVal sender As Object, _
ByVal e As MouseButtonEventArgs)
controlsToDisplay = CType(sender, UIElement).ToString()
MessageBox.Show(controlsToDisplay)
End Sub
B. Dim controlsToDisplay As String = String.Empty
Private Sub Window_MouseDown(ByVal sender As Object, _
ByVal e As MouseButtonEventArgs)
For i = 0 To VisualChildrenCount - 1
controlsToDisplay += GetVisualChild(i).ToString() + "rn"
Next
MessageBox.Show(controlsToDisplay)
End Sub
C. Dim controlsToDisplay As String = String.Empty
Private Sub Window_MouseDown(ByVal sender As Object, _
ByVal e As MouseButtonEventArgs)
Dim myVisual As Visual()
For i = 0 To VisualTreeHelper.GetChildrenCount(CType(sender, _
Visual)) - 1
myVisual(i) = CType(VisualTreeHelper.GetChild(CType(sender, _
Visual), i), Visual)
controlsToDisplay += myVisual.GetType().ToString() + "rn"
Next
MessageBox.Show(controlsToDisplay)
End Sub
D. Dim controlsToDisplay As String = String.Empty
Private Sub Window_MouseDown(ByVal sender As Object, _
ByVal e As MouseButtonEventArgs)
Dim pt As Point = e.GetPosition(Me)
VisualTreeHelper.HitTest(Me, Nothing, _
New HitTestResultCallback(AddressOf HitTestCallback), _
New PointHitTestParameters(pt))
MessageBox.Show(controlsToDisplay)
End Sub
Private Function HitTestCallback(ByVal result As HitTestResult) As _
HitTestResultBehavior
controlsToDisplay += result.VisualHit.GetType().ToString() + "rn"
Return HitTestResultBehavior.Continue
End Function
Answer: D
2. ÄúÕýÔÚʹÓà Microsoft .NET Framework 3.5 ´´½¨Ò»¸ö Windows Presentation Foundation Ó¦ÓóÌÐò¡£
ÄúÔڴ˳ÌÐòÖаüº¬Á˹¦ÄÜÒÔ½â¾ö´°¿ÚÐÐΪÎÊÌâ¡£
ÄúÐèÒªÔÚ´°¿ÚÖÐÊó±êµ¥»÷µÄλÖÃÏÔʾ UI ÔªËØÁÐ±í¡£Äú»¹ÐèҪȷ±£´ËÔªËØÁбíÏÔʾÔÚÏûÏ¢¿òÖС£
ÄúÓ¦¸Ã½«ÏÂÃæÄĸö´úÂë¶Î°üÀ¨ÔÚ´úÂëÒþ²ØÎļþÖУ¿
A. string controlsToDisplay = string.Empty;
private void Window_MouseDown(object sender, MouseButtonEventArgs e) {
controlsToDisplay = ((UIElement)sender).ToString();
MessageBox.Show(controlsToDisplay);
}
B. string controlsToDisplay = string.Empty;
private void Window_MouseDown(object sender, MouseButtonEventArgs e) {
for (int i = 0; i < this.VisualChildrenCount; i++) {
controlsToDisplay + = this.GetVisualChild(i).ToString() + "rn";
}
MessageBox.Show(controlsToDisplay);
}
C. string controlsToDisplay = string.Empty;
private void Window_MouseDown (object sender, MouseButtonEventArgs e)
{
Visual myVisual;
for (int i = 0; i < VisualTreeHelper.GetChildrenCount(sender as
Visual); i++) {
myVisual = (Visual)VisualTreeHelper.GetChild(sender as Visual, i);
controlsToDisplay += myVisual.GetType().ToString() + "rn";
}
MessageBox.Show(controlsToDisplay);
}
D. string controlsToDisplay = string.Empty;
private void Window_MouseDown(object sender, MouseButtonEventArgs e) {
Point pt = e.GetPosition(this);
VisualTreeHelper.HitTest(this, null, new
HitTestResultCallback(HitTestCallback), new
PointHitTestParameters(pt));
MessageBox.Show(controlsToDisplay);
}
private HitTestResultBehavior HitTestCallback(HitTestResult result) {
controlsToDisplay += result.VisualHit.GetType().ToString() + "rn";
return HitTestResultBehavior.Continue;
}
Answer: D
3. ÄúʹÓà Microsoft .NET Framework 3.5 ´´½¨Ò»¸ö Windows Presentation Foundation Ó¦ÓóÌÐò¡£
¸ÃÓ¦ÓóÌÐòÃûΪ EnterpriseApplication.exe¡£
ÄúʹÓÃÉè¼ÆÆ÷ÔÚÓû§×÷ÓÃÓò¼¶±ðÏò Settings.settings ÎļþÖÐÌí¼Ó WindowSize ²ÎÊýºÍ WindowPosition ²ÎÊý¡£´°¿ÚµÄ´óСºÍλÖÃÊÇ´ÓÓû§ÅäÖÃÎļþ¶ÁÈ¡µÄ¡£
¸ÃÓ¦ÓóÌÐò±ØÐëÕë¶Ôÿ¸öÖ´ÐÐËüµÄÓû§±£³Ö×î³õµÄ´°¿Ú´óСºÍλÖá£
ÄúÐèҪȷ±£Âú×ãÒÔÏÂÒªÇó£º
¡¤Ã¿¸öÓû§µÄ´°¿Ú´óС¶¼±£´æÔÚÓû§ÅäÖÃÎļþÖС£
¡¤ÔÚÓû§Í˳öÓ¦ÓóÌÐòºó±£ÁôÓû§ÉèÖá£
ÄúÓ¦¸ÃʹÓÃÄĸöÅäÖÃÉèÖã¿
A. private void OnClosing(object sender,
System.ComponentModel.CancelEventArgs e){
Settings.Default.WindowPosition = new Point (this.Left,
this.Top);
Settings.Default.WindowSize = new Size (this.Width,
this.Height);
Settings.Default.Save();
}
B. private void OnClosing(object sender,
System.ComponentModel.CancelEventArgs e){
RegistryKey appKey =
Registry.CurrentUser.CreateSubKey("Software\EnterpriseApplication");
RegistryKey settingsKey = appKey.CreateSubKey("WindowSettings");
RegistryKey windowPositionKey =
settingsKey.CreateSubKey("WindowPosition");
RegistryKey windowSizeKey = settingsKey.CreateSubKey("WindowSize");
windowPositionKey.SetValue("X", this.Left);
windowPositionKey.SetValue("Y", this.Top);
windowSizeKey.SetValue("Width", this.Width);
windowSizeKey.SetValue("Height", this.Height);
}
C. private void OnClosing(object sender,
System.ComponentModel.CancelEventArgs e){
XmlDocument doc = new XmlDocument();
doc.Load("EnterpriseApplication.exe.config");
XmlNode nodePosition =
doc.SelectSingleNode("//setting[@name='WindowPosition']");
nodePosition.ChildNodes[0].InnerText = String.Format("{0},{1}",
this.Left, this.Top);
XmlNode nodeSize =
doc.SelectSingleNode("//setting[@name='WindowSize']");
nodeSize.ChildNodes[0].InnerText = String.Format("{0},{1}",
this.Width, this.Height);
doc.Save("UserConfigDistractor2.exe.config");
}
D. private void Window_Closing(object sender,
System.ComponentModel.CancelEventArgs e){
StreamWriter sw =
new StreamWriter("EnterpriseApplication.exe.config", true);
sw.WriteLine("<EnterpriseApplication.Properties.Settings>");
sw.WriteLine("<setting name=
"WindowSize" serializeAs="String">");
sw.WriteLine(String.Format("<value>{0},{1}</value>",
this.Width, this.Height));
sw.WriteLine("</setting>");
sw.WriteLine("<setting name=
"WindowPosition" serializeAs="String">");
sw.WriteLine(String.Format("<value>{0},{1}</value>", this.Left,
this.Top));
sw.WriteLine("</setting>");
sw.WriteLine("</UserConfigProblem.Properties.Settings>");
sw.Close();
}
Answer: A
4. ÄúÕýÔÚʹÓà Microsoft .NET Framework 3.5 ´´½¨Ò»¸ö Windows Presentation Foundation Ó¦ÓóÌÐò¡£
¸ÃÓ¦ÓóÌÐòʹÓÃÈô¸É¸öÒì²½²Ù×÷À´¼ÆËãÏÔʾ¸øÓû§µÄÊý¾Ý¡£ÃûΪ tommorowsWeather µÄ²Ù×÷Ö´Ðн«ÓÉÆäËû²Ù×÷ʹÓõļÆËã¡£
ÄúÐèҪȷ±£ tommorowsWeather ÒÔ¾¡¿ÉÄܸߵÄÓÅÏȼ¶ÔËÐС£
ÄúÓ¦¸ÃʹÓÃÄĸö´úÂë¶Î£¿
A. tomorrowsWeather.Dispatcher.BeginInvoke(
System.Windows.Threading.DispatcherPriority.Normal,
new OneArgDelegate(UpdateUserInterface),
weather);
B. tomorrowsWeather.Dispatcher.BeginInvoke(
System.Windows.Threading.DispatcherPriority.DataBind,
new OneArgDelegate(UpdateUserInterface),
weather);
C. tomorrowsWeather.Dispatcher.BeginInvoke(
System.Windows.Threading.DispatcherPriority.Send,
new OneArgDelegate(UpdateUserInterface),
weather);
D. tomorrowsWeather.Dispatcher.BeginInvoke(
System.Windows.Threading.DispatcherPriority.Render,
new OneArgDelegate(UpdateUserInterface),
weather);
Answer: C
5. ÄúÕýÔÚʹÓà Microsoft .NET Framework 3.5 ´´½¨Ò»¸ö Windows Presentation Foundation Ó¦ÓóÌÐò¡£
ÄúÏò Window ÔªËØÖÐÌí¼ÓÒ»¸ö CommandBinding ÔªËØ¡£¸ÃÃüÁî¾ßÓÐÒ»¸ö¼üÅ̱ÊÊÆ Ctrl+H¡£Window ÔªËØÖаüº¬ÏÂÃæµÄ MenuItem ¿Ø¼þ¡£
<MenuItem Header="Highlight Content"
Command="local:CustomCommands.Highlight" />
ÄúÐèҪȷ±£µ±½¹µãÇл»µ½²»°üº¬ÈκÎÎı¾µÄ TextBox ¿Ø¼þʱ£¬MenuItem ¿Ø¼þ´¦ÓÚ½ûÓÃ״̬¶øÇÒ¸ÃÃüÁî²»¿ÉÖ´ÐС£
ÄúÓ¦¸ÃÔõô°ì£¿
A. ÔÚ TextBox ¿Ø¼þµÄ GotFocus ʼþ´¦Àí³ÌÐòÖУ¬ÉèÖà MenuItem ¿Ø¼þµÄ IsEnabled ÊôÐÔ¡£
B. ½«¸ÃÃüÁîµÄ CanExecute ÊôÐÔÉèÖÃΪ Highlight_CanExecute¡£
½«ÒÔÏ·½·¨Ìí¼Óµ½¸Ã´°¿ÚµÄ´úÂëÒþ²ØÎļþÖС£
private void Highlight_CanExecute(object sender, CanExecuteEventArgs e) {
TextBox txtBox = sender as TextBox;
e.CanExecute = (txtBox.Text.Length > 0);
}
C. ½«¸ÃÃüÁîµÄ CanExecute ÊôÐÔÉèÖÃΪ Highlight_CanExecute¡£
½«ÒÔÏ·½·¨Ìí¼Óµ½¸Ã´°¿ÚµÄ´úÂëÒþ²ØÎļþÖС£
private void Highlight_CanExecute(object sender, CanExecuteEventArgs e) {
TextBox txtBox = e.Source as TextBox;
e.CanExecute = (txtBox.Text.Length > 0);
}
D. ½«¸ÃÃüÁîµÄ CanExecute ÊôÐÔÉèÖÃΪ Highlight_CanExecute¡£
½«ÒÔÏ·½·¨Ìí¼Óµ½¸Ã´°¿ÚµÄ´úÂëÒþ²ØÎļþÖС£
private void Highlight_CanExecute(object sender, CanExecuteEventArgs e) {
MenuItem menu = e.Source as MenuItem;
TextBox txtBox = menu.CommandTarget as TextBox;
Menu.IsEnabled = (txtBox.Text.Length > 0);
}
Answer: C
6. ÄúÕýÔÚ½« Windows ´°ÌåÓ¦ÓóÌÐòת»»Îª Windows Presentation Foundation (WPF) Ó¦ÓóÌÐò¡£ÄúʹÓà Microsoft .NET Framework 3.5 ´´½¨¸Ã WPF Ó¦ÓóÌÐò¡£
¸Ã WPF Ó¦ÓóÌÐò½«ÖØÓÃ´Ë Windows ´°ÌåÓ¦ÓóÌÐòµÄ 30 ¸ö´°Ìå¡£
¸Ã WPF Ó¦ÓóÌÐòÖаüº¬ÏÂÃæµÄÀඨÒå¡£
public class OwnerWindow :
System.Windows.Forms.IWin32Window
{
private IntPtr handle;
public IntPtr Handle
{
get { return handle; }
set { handle=value; }
}
}
ÄúÔڸà WPF Ó¦ÓóÌÐòÖбàдÒÔÏ´úÂë¶Î¡££¨Ëù°üÀ¨µÄÐкŽö¹©²Î¿¼¡££©
01 public DialogResult LaunchWindowsFormsDialog(
02 Form dialog, Window wpfParent)
03 {
04 WindowInteropHelper helper=new
05 WindowInteropHelper(wpfParent);
06 OwnerWindow owner=new OwnerWindow();
07
08 }
ÄúÐèҪȷ±£¸ÃÓ¦ÓóÌÐòÄܹ»ÒÔģʽ¶Ô»°¿òÐÎʽÆô¶¯¿ÉÖØÓõĴ°Ìå¡£
ÄúÓ¦¸ÃÔÚµÚ 07 Ðд¦²åÈëÄĸö´úÂë¶Î£¿
A. owner.Handle = helper.Owner;
return dialog.ShowDialog(owner);
B. owner.Handle = helper.Handle;
return dialog.ShowDialog(owner);
C. owner.Handle = helper.Owner;
bool? result = wpfParent.ShowDialog();
if (result.HasValue)
return result.Value System.Windows.Forms.DialogResult.OK :
System.Windows.Forms.DialogResult.Cancel;
else
return System.Windows.Forms.DialogResult.Cancel;
D. owner.Handle = helper.Handle;
bool? result = wpfParent.ShowDialog();
if (result.HasValue)
return result.Value System.Windows.Forms.DialogResult.OK :
System.Windows.Forms.DialogResult.Cancel;
else
return System.Windows.Forms.DialogResult.Cancel;
Answer: B
7. ÄúʹÓà Windows Presentation Foundation ºÍ Microsoft .NET Framework 3.5 ´´½¨Ò»¸ö´°Ìå¡£¸Ã´°ÌåÖаüº¬Ò»¸ö״̬À¸¡£
Äú´òËãÏò¸Ã״̬À¸Ìí¼ÓÒ»¸ö ProgressBar ¿Ø¼þ¡£
ÄúÐèҪȷ±£ ProgressBar ¿Ø¼þÏÔʾÄúÎÞ·¨Ô¤²âÍê³Éʱ¼äµÄÈÎÎñµÄ½ø¶È¡£
ÄúÓ¦¸ÃʹÓÃÄĸö´úÂë¶Î£¿
A. progbar.IsIndeterminate = true;
B. progbar.IsIndeterminate = false;
C. progbar.HasAnimatedProperties = true;
D. progbar.HasAnimatedProperties = false;
Answer: A
8. ÄúÕýÔÚʹÓà Microsoft .NET Framework 3.5 ´´½¨Ò»¸ö Windows Presentation Foundation (WPF) Ó¦ÓóÌÐò¡£
¸Ã WPF Ó¦ÓóÌÐòÓÐÒ»¸öÃûΪ rootGrid µÄ Grid ¿Ø¼þ¡£
Äú±àдÒÔÏ XAML ´úÂëƬ¶Î¡£
<Window x:Class="MCP.HostingWinFormsControls"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/
presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="HostingWinFormsControls"
Loaded="Window_Loaded">
<Grid x:Name="rootGrid">
</Grid>
</Window>
ÄúÐèҪȷ±£Ã¿´Î´ò¿ª WPF ´°¿Úʱ£¬¶¼»áÏò rootGrid ÖÐÌí¼ÓÒ»¸öÃûΪ MyCustomFormsControl µÄ Windows ´°Ìå¿Ø¼þ¡£
ÄúÓ¦¸ÃʹÓÃÄĸö´úÂë¶Î£¿
A. private void Window_Loaded(object sender, RoutedEventArgs e)
{
WindowsFormsHost host = new WindowsFormsHost();
MyCustomFormsControl formsControl = new MyCustomFormsControl();
host.Child = formsControl;
rootGrid.Children.Add(host);
}
B. private void Window_Loaded(object sender, RoutedEventArgs e)
{
ElementHost host = new ElementHost();
MyCustomFormsControl formsControl=new MyCustomFormsControl();
host.Child=formsControl;
rootGrid.Children.Add(host);
}
C. private void Window_Loaded(object sender, RoutedEventArgs e)
{
MyCustomFormsControl formsControl=new MyCustomFormsControl();
formsControl.CreateControl();
HwndSource source = HwndSource.FromHwnd(formsControl.Handle);
UIElement formsElement = source.RootVisual as UIElement;
rootGrid.Children.Add(formsElement);
}
D. private void Window_Loaded(object sender, RoutedEventArgs e)
{
MyCustomFormsControl formsControl=new MyCustomFormsControl();
formsControl.CreateControl();
HwndTarget target = new HwndTarget(formsControl.Handle);
UIElement formsElement = target.RootVisual as UIElement;
rootGrid.Children.Add(formsElement);
}
Answer: A
9. ÄúÕýÔÚʹÓà Microsoft .NET Framework 3.5 ´´½¨Ò»¸ö Windows Presentation Foundation Ó¦ÓóÌÐò¡£
Äú±àдÒÔÏ´úÂë¶Î£¨Ëù°üÀ¨µÄÐкŽö¹©²Î¿¼£©¡£
01 Dim content As Object
02 Dim fileName As String = "theFile"
03 Using xamlFile As New FileStream(fileName & ".xaml", _
04 FileMode.Open, FileAccess.Read)
06 content = TryCast(XamlReader.Load(xamlFile), Object)
07 End Using
08 Using container As Package = Package.Open(fileName & ".xps", _
09 FileMode.Create)
10
11 End Using
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¡¤´ËÓ¦ÓóÌÐò½«ÏÖÓÐÁ÷Îĵµ×ª»»Îª XPS Îĵµ¡£
¡¤XPS ÎĵµÊ¹ÓÃÁ÷Îĵµ¸ñʽÉú³É¡£
¡¤XPS ÎĵµµÄ´óСΪ¿ÉÄܵÄ×îСֵ¡£
ÄúÓ¦¸ÃÔÚµÚ 10 ÐвåÈëÏÂÃæÄĸö´úÂë¶Î£¿
A. Using xpsDoc As New XpsDocument(container, _
CompressionOption.SuperFast)
Dim rsm As XpsSerializationManager = New _
System.Windows.Xps.XpsSerializationManager(New _
XpsPackagingPolicy(xpsDoc), False)
rsm.SaveAsXaml(paginator)
End Using
B. Using xpsDoc As New XpsDocument(container, _
CompressionOption.SuperFast)
Dim rsm As New XpsSerializationManager(New _
XpsPackagingPolicy(xpsDoc), False)
rsm.Commit()
End Using
C. Using xpsDoc As New XpsDocument(container, _
CompressionOption.Maximum)
Dim rsm As New XpsSerializationManager(New _
XpsPackagingPolicy(xpsDoc), False)
Dim paginator As DocumentPaginator = (CType(content, _
IDocumentPaginatorSource)).DocumentPaginator
rsm.SaveAsXaml(paginator)
End Using
D. Using xpsDoc As New XpsDocument(container, _
CompressionOption.SuperFast)
Dim rsm As New XpsSerializationManager(New _
XpsPackagingPolicy(xpsDoc), False)
Dim paginator As DocumentPaginator = (CType(content, _
IDocumentPaginatorSource)).DocumentPaginator
rsm.SaveAsXaml(paginator)
End Using
Answer: C
10. ÄúÕýÔÚʹÓà Microsoft .NET Framework 3.5 ´´½¨Ò»¸ö Windows Presentation Foundation Ó¦ÓóÌÐò¡£
Äú±àдÒÔÏ´úÂë¶Î£¨Ëù°üÀ¨µÄÐкŽö¹©²Î¿¼£©¡£
01 Dim content As Object
02 Dim fileName As String = "theFile"
03 Using xamlFile As New FileStream(fileName & ".xaml", _
04 FileMode.Open, FileAccess.Read)
06 content = TryCast(XamlReader.Load(xamlFile), Object)
07 End Using
08 Using container As Package = Package.Open(fileName & ".xps", _
09 FileMode.Create)
10
11 End Using
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¡¤´ËÓ¦ÓóÌÐò½«ÏÖÓÐÁ÷Îĵµ×ª»»Îª XPS Îĵµ¡£
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ÄúÓ¦¸ÃÔÚµÚ 10 ÐвåÈëÏÂÃæÄĸö´úÂë¶Î£¿
A. Using xpsDoc As New XpsDocument(container, _
CompressionOption.SuperFast)
Dim rsm As XpsSerializationManager = New _
System.Windows.Xps.XpsSerializationManager(New _
XpsPackagingPolicy(xpsDoc), False)
rsm.SaveAsXaml(paginator)
End Using
B. Using xpsDoc As New XpsDocument(container, _
CompressionOption.SuperFast)
Dim rsm As New XpsSerializationManager(New _
XpsPackagingPolicy(xpsDoc), False)
rsm.Commit()
End Using
C. Using xpsDoc As New XpsDocument(container, _
CompressionOption.Maximum)
Dim rsm As New XpsSerializationManager(New _
XpsPackagingPolicy(xpsDoc), False)
Dim paginator As DocumentPaginator = (CType(content, _
IDocumentPaginatorSource)).DocumentPaginator
rsm.SaveAsXaml(paginator)
End Using
D. Using xpsDoc As New XpsDocument(container, _
CompressionOption.SuperFast)
Dim rsm As New XpsSerializationManager(New _
XpsPackagingPolicy(xpsDoc), False)
Dim paginator As DocumentPaginator = (CType(content, _
IDocumentPaginatorSource)).DocumentPaginator
rsm.SaveAsXaml(paginator)
End Using
Answer: C
11. ÄúÕýÔÚʹÓà Microsoft .NET Framework 5 ´´½¨Ò»¸ö Windows Presentation Foundation Ó¦ÓóÌÐò¡£
¸ÃÓ¦ÓóÌÐò¶¨ÒåÒ»¸ö BrowserWindow Àà¡£BrowserWindow ÀàµÄÿ¸öʵÀýÔÊÐíÓû§ÔÚÒ»¸öµ¥¶ÀµÄ´°¿ÚÖÐä¯ÀÀÍøÕ¾¡£ÔÚ´ò¿ªÐµÄä¯ÀÀÆ÷´°¿Úʱ£¬Óû§½«Öض¨Ïòµ½Ò»¸öÔ¤¶¨ÒåµÄ URL¡£
Äú±àдÒÔÏ´úÂë¶Î¡£
01 private void OpenNewWindow(object sender, RoutedEventArgs e)
02 {
03 Thread newWindowThread = new Thread(new
ThreadStart(NewThreadProc));
04
05 newWindowThread.Start();
06 }
07 private void NewThreadProc()
08 {
09
10 }
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¡¤ÔÚÓ¦ÓóÌÐòµÄÖ÷´°¿Ú¹Ø±Õʱ£¬Ó¦ÓóÌÐò¼´Ö´ÐÐÍê±Ï¡£
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A. ÔÚµÚ 04 Ðд¦²åÈëÒÔÏ´úÂë¶Î¡£
newWindowThread.SetApartmentState(ApartmentState.STA);
newWindowThread.IsBackground = true;
ÔÚµÚ 09 Ðд¦²åÈëÒÔÏ´úÂë¶Î¡£
BrowserWindow newWindow = new BrowserWindow();
newWindow.Show();
Application app = new Application();
app.Run(newWindow);
B. ÔÚµÚ 04 Ðд¦²åÈëÒÔÏ´úÂë¶Î¡£
newWindowThread.IsBackground = true;
ÔÚµÚ 09 Ðд¦²åÈëÒÔÏ´úÂë¶Î¡£
newWindowThread.SetApartmentState(ApartmentState.STA);
BrowserWindow newWindow = new BrowserWindow();
newWindow.Show();
Application app = new Application();
app.Run(newWindow);
C. ÔÚµÚ 04 Ðд¦²åÈëÒÔÏ´úÂë¶Î¡£
newWindowThread.SetApartmentState(ApartmentState.STA);
newWindowThread.IsBackground = false;
ÔÚµÚ 09 Ðд¦²åÈëÒÔÏ´úÂë¶Î¡£
BrowserWindow newWindow = new BrowserWindow();
System.Windows.Threading.Dispatcher.Run();
newWindow.Show();
D. ÔÚµÚ 04 Ðд¦²åÈëÒÔÏ´úÂë¶Î¡£
newWindowThread.SetApartmentState(ApartmentState.STA);
newWindowThread.IsBackground = true;
ÔÚµÚ 09 Ðд¦²åÈëÒÔÏ´úÂë¶Î¡£
BrowserWindow newWindow = new BrowserWindow();
newWindow.Show();
System.Windows.Threading.Dispatcher.Run();
Answer: D
12. ÄúÕýÔÚʹÓà Microsoft .NET Framework 3.5 ´´½¨Ò»¸ö Windows Presentation Foundation Ó¦ÓóÌÐò¡£
´ËÓ¦ÓóÌÐò½«Ê¹Óà FlowDocumentPageViewer ÀàµÄʵÀýÀ´ÏÔʾÎĵµ¡£¸ÃʵÀýµÄÃû³ÆΪ fdpv¡£Óû§¿ÉÒÔÍ»³öÏÔʾÎĵµÄÚÈݲ¢ÎªÆäÌí¼Ó×¢ÊÍ¡£
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ÄúÓ¦¸ÃʹÓÃÏÂÃæÄĸö´úÂë¶Î£¿
A. Protected Sub OnTextInput(ByVal sender As Object, _
ByVal e As RoutedEventArgs)
Dim service As AnnotationService = _
AnnotationService.GetService(fdpv)
If service Is Nothing Then
AnnotationStream = New FileStream("annotations.xml", _
FileMode.Open, FileAccess.ReadWrite)
service = New AnnotationService(fdpv)
Dim store As AnnotationStore = _
New XmlStreamStore(AnnotationStream)
service.Enable(store)
End If
End Sub
Private Sub OnClosing(ByVal sender As Object, _
ByVal e As System.ComponentModel.CancelEventArgs)
Dim service As AnnotationService = _
AnnotationService.GetService(fdpv)
If Not service Is Nothing AndAlso service.IsEnabled Then
service.Store.Flush()
service.Disable()
AnnotationStream.Close()
End If
End Sub
B. Protected Sub OnLoaded(ByVal sender As Object, _
ByVal e As RoutedEventArgs)
Dim service As AnnotationService = _
AnnotationService.GetService(fdpv)
If service Is Nothing Then
AnnotationStream = New FileStream("annotations.xml", _
FileMode.Open, FileAccess.ReadWrite)
service = New AnnotationService(fdpv)
End If
End Sub
Private Sub OnClosing(ByVal sender As Object, _
ByVal e As System.ComponentModel.CancelEventArgs)
Dim service As AnnotationService = _
AnnotationService.GetService(fdpv)
If Not service Is Nothing AndAlso service.IsEnabled Then
service.Store.Flush()
service.Disable()
AnnotationStream.Close()
End If
End Sub
C. Protected Sub OnLoaded(ByVal sender As Object, _
ByVal e As RoutedEventArgs)
Dim service As AnnotationService = _
AnnotationService.GetService(fdpv)
If service Is Nothing Then
AnnotationStream = New FileStream("annotations.xml", _
FileMode.Open, FileAccess.ReadWrite)
service = New AnnotationService(fdpv)
Dim store As AnnotationStore = New _
XmlStreamStore(AnnotationStream)
service.Enable(store)
End If
End Sub
Private Sub OnClosing(ByVal sender As Object, _
ByVal e As System.ComponentModel.CancelEventArgs)
Dim service As AnnotationService = _
AnnotationService.GetService(fdpv)
If Not service Is Nothing AndAlso service.IsEnabled Then
service.Store.Flush()
service.Disable()
AnnotationStream.Close()
End If
End Sub
D. Protected Sub OnLoaded(ByVal sender As Object, _
ByVal e As RoutedEventArgs)
Dim service As AnnotationService = _
AnnotationService.GetService(fdpv)
If service Is Nothing Then
AnnotationStream = New FileStream("annotations.xml", _
FileMode.Open, FileAccess.ReadWrite)
service = New AnnotationService(fdpv)
Dim store As AnnotationStore = New _
XmlStreamStore(AnnotationStream)
service.Enable(store)
End If
End Sub
Private Sub OnClosing(ByVal sender As Object, _
ByVal e As System.ComponentModel.CancelEventArgs)
Dim service As AnnotationService = _
AnnotationService.GetService(fdpv)
If Not service Is Nothing AndAlso service.IsEnabled Then
service.Disable()
AnnotationStream.Close()
End If
End Sub
Answer: C
13. ÄúÕýÔÚʹÓà Microsoft .NET Framework 3.5 ´´½¨Ò»¸ö Windows Presentation Foundation Ó¦ÓóÌÐò¡£
ÄúΪ¸ÃÓ¦ÓóÌÐò´´½¨Ò»¸ö´°¿Ú¡£
ÄúÐèҪȷ±£Âú×ãÒÔÏÂÒªÇó£º
¡¤Ê¹Óà ListBox ¿Ø¼þÒÔË«ÁиñʽÏÔʾ×Ö·û´®Êý×é¡£
¡¤ListBox ¿Ø¼þÖÐÊý¾ÝµÄÁ÷¶¯·½ÏòΪ´Ó×óÏòÓÒ¡¢×ÔÉÏÏòÏ¡£
ÄúÓ¦¸ÃÔõô°ì£¿
A. ʹÓð´ÈçÏ·½Ê½¶¨ÒåµÄ ListBox ¿Ø¼þ¡£
<ListBox Name="myList">
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<UniformGrid Columns="2"/>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
</ListBox>
ʹÓÃÏÂÃæµÄ C# ´úÂ뽫×Ö·û´®Êý×éÓë ListBox ¿Ø¼þ¹ØÁª¡£
myList.ItemsSource = arrayOfString;
B. ʹÓð´ÈçÏ·½Ê½¶¨ÒåµÄ ListBox ¿Ø¼þ¡£
<ListBox Name="myList">
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<StackPanel />
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
</ListBox>
ʹÓÃÏÂÃæµÄ C# ´úÂ뽫×Ö·û´®Êý×éÓë ListBox ¿Ø¼þ¹ØÁª¡£
myList.ItemsSource = arrayOfString;
C. ʹÓð´ÈçÏ·½Ê½¶¨ÒåµÄ ListBox ¿Ø¼þ¡£
<ListBox Name="myList">
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<WrapPanel />
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
</ListBox>
ʹÓÃÏÂÃæµÄ C# ´úÂ뽫×Ö·û´®Êý×éÓë ListBox ¿Ø¼þ¹ØÁª¡£
myListView.ItemsSource = arrayOfString;
D. ʹÓð´ÈçÏ·½Ê½¶¨ÒåµÄ ListBox ¿Ø¼þ¡£
<ListBox Name="myList">
<ListBox.ItemsPanel>
<ItemsPanelTemplate>
<Grid>
<Grid.ColumnDefinitions>
<ColumnDefinition />
<ColumnDefinition />
</Grid.ColumnDefinitions>
</Grid>
</ItemsPanelTemplate>
</ListBox.ItemsPanel>
</ListBox>
ʹÓÃÏÂÃæµÄ C# ´úÂ뽫×Ö·û´®Êý×éÓë ListBox ¿Ø¼þ¹ØÁª¡£
myList.ItemsSource = arrayOfString;
Answer: A
14. ÄúÕýÔÚʹÓà Microsoft .NET Framework 3.5 ´´½¨Ò»¸ö Windows Presentation Foundation Ó¦ÓóÌÐò¡£
´ËÓ¦ÓóÌÐòʹÓà FlowDocumentPageViewer ÀàµÄʵÀýÀ´ÏÔʾÎĵµ¡£¸ÃʵÀýµÄÃû³ÆΪ fdpv¡£Óû§¿ÉÒÔÍ»³öÏÔʾÎĵµÄÚÈݲ¢ÎªÆäÌí¼Ó×¢ÊÍ¡£
ÄúÐèҪȷ±£ÎªÎĵµ×÷µÄ×¢Ê͵ÃÒÔ±£´æ£¬ÇÒÕâЩעÊÍÔÚÎĵµÔÙ´ÎÏÔʾʱ³ÊÏÖ³öÀ´¡£
ÄúÓ¦¸ÃʹÓÃÏÂÃæÄĸö´úÂë¶Î£¿
A. protected void OnTextInput(object sender, RoutedEventArgs e) {
AnnotationService service = AnnotationService.GetService(fdpv);
if (service == null) {
AnnotationStream = new FileStream("annotations.xml",
FileMode.Open, FileAccess.ReadWrite);
service = new AnnotationService(fdpv);
AnnotationStore store = new XmlStreamStore(AnnotationStream);
service.Enable(store);
}
}
private void OnClosing(object sender,
System.ComponentModel.CancelEventArgs e) {
AnnotationService service = AnnotationService.GetService(fdpv);
if (service != null && service.IsEnabled) {
service.Store.Flush();
service.Disable();
AnnotationStream.Close();
}
}
B. protected void OnLoaded(object sender, RoutedEventArgs e) {
AnnotationService service = AnnotationService.GetService(fdpv);
if (service == null) {
AnnotationStream = new FileStream("annotations.xml",
FileMode.Open, FileAccess.ReadWrite);
service = new AnnotationService(fdpv);
}
}
private void OnClosing(object sender,
System.ComponentModel.CancelEventArgs e) {
AnnotationService service = AnnotationService.GetService(fdpv);
if (service != null && service.IsEnabled) {
service.Store.Flush();
service.Disable();
AnnotationStream.Close();
}
}
C. protected void OnLoaded(object sender, RoutedEventArgs e) {
AnnotationService service = AnnotationService.GetService(fdpv);
if (service == null) {
AnnotationStream = new FileStream("annotations.xml",
FileMode.Open, FileAccess.ReadWrite);
service = new AnnotationService(fdpv);
AnnotationStore store = new XmlStreamStore(AnnotationStream);
service.Enable(store);
}
}
private void OnClosing(object sender,
System.ComponentModel.CancelEventArgs e) {
AnnotationService service = AnnotationService.GetService(fdpv);
if (service != null && service.IsEnabled) {
service.Store.Flush();
service.Disable();
AnnotationStream.Close();
}
}
D. protected void OnLoaded(object sender, RoutedEventArgs e) {
AnnotationService service = AnnotationService.GetService(fdpv);
if (service == null) {
AnnotationStream = new FileStream("annotations.xml",
FileMode.Open, FileAccess.ReadWrite);
service = new AnnotationService(fdpv);
AnnotationStore store = new XmlStreamStore(AnnotationStream);
service.Enable(store);
}
}
private void OnClosing(object sender,
System.ComponentModel.CancelEventArgs e) {
AnnotationService service = AnnotationService.GetService(fdpv);
if (service != null && service.IsEnabled) {
service.Disable();
AnnotationStream.Close();
}
}
Answer: C
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