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Exam Code: 70-341Prüfungsname: Core Solutions of Microsoft Exchange Server 2013
Aktulisiert: 2014-06-11, 70-341 fragen und antworten
Nummer: 190 Q&As
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Exam Code: 070-511Prüfungsname: TS: Windows Applications Development with Microsoft .NET Framework 4
Aktulisiert: 2014-06-11, 070-511 Prüfungsfrage
Nummer: 156 Q&As
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NO.1 You use Microsoft Visual Studio 2010 and Microsoft .
NET Framework 4 to create a Windows Presentation Foundation (WPF) application.
You create a WPF window in the application.
You add the following code segment to the application.
public class ViewModel
{
public CollectionView Data { get; set; }
}
public class BusinessObject
{
public string Name { get; set; }
}
The DataContext property of the window is set to an instance of the ViewModel class.
The Data property of the ViewModel instance is initialized with a collection of BusinessObject objects.
You add a TextBox control to the Window.
You need to bind the Text property of the TextBox control to the Name property of the current item of the
CollectionView of the DataContext object.
You also need to ensure that when a binding error occurs, the Text property of the TextBox control is set to
N/A .
Which binding expression should you use?
A. { Binding Path=Data/Name, FallbackValue='N/A' }
B. { Binding Path=Data.Name, FallbackValue='N/A' }
C. { Binding Path=Data/Name, TargetNullValue='N/A' }
D. { Binding Path=Data.Name, TargetNullValue='N/A' }
Answer: A
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NO.2 You use Microsoft .NET Framework 4 to create a Windows Forms application.
You plan to use a Windows Presentation Foundation (WPF) control of the UserControl1 type hosted in an
ElementHost control named elementHost1.
You write the following code segment. (Line numbers are included for reference only.)
01public class WPFInWinForms {
02public WPFInWinForms
03{
04InitializeComponent();
05
06}
07private void OnBackColorChange(object sender, String propertyName, object value)
08{
09ElementHost host = sender as ElementHost;
10System.Drawing.Color col = (System.Drawing.Color)value;
11SolidColorBrush brush =
new SolidColorBrush(System.Windows.Medi
a.Color.FromRgb(col.R, col.G, col.B));
12UserControl1 uc1 = host.Child as UserControl1;
13uc1.Background = brush;
14}
15}
You need to ensure that the application changes the background color of the hosted control when the
background color of the form changes.
Which code segment should you insert at line 05?
A. elementHost1.PropertyMap.Remove("BackColor");
elementHost1.PropertyMap.Add("BackColor", new PropertyTranslator(OnBackColorChange));
B. elementHost1.PropertyMap.Remove("Background");
elementHost1.PropertyMap.Add("Background", new PropertyTranslator(OnBackColorChange));
C. elementHost1.PropertyMap.Add("BackColor", new PropertyTranslator(OnBackColorChange));
elementHost1.PropertyMap.Apply("BackColor");
D. elementHost1.PropertyMap.Add("Background", new PropertyTranslator(OnBackColorChange));
elementHost1.PropertyMap.Apply("Background");
Answer: A
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NO.3 You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.
The application contains a composite user control that includes a TextBox control named txtInput.
The user control will be hosted in a window and will have handlers for the text-changed event of txtInput.
You need to ensure that the application meets the following requirements:
AddHandler (TextBox.TextChangedEvent, new RoutedEventHandler (Audit_TextChanged), true);
Which of the following statments are TRUE? (choose all that apply)
A. A text-changed event handler, named Audit_TextChanged, was Created for the txtInput control.
B. Audit_TextChanged will stop running because the event is marked as handled by certain event
handlers.
C. Even through the event is marked handled by certain event handlers, Audit_TextChanged will still run.
D. Audit_TextChanged will continue to run until the event is marked as handled.
Answer: AC
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NO.4 You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.
The application contains a composite user control that includes a TextBox control named txtInput.
The user control will be hosted in a window and will have handlers for the text-changed event of txtInput.
You need to ensure that the application meets the following requirements:
- Creates a text-changed event handler named Audit_TextChanged for the txtInput control.
- Executes Audit_TextChanged even when specific handlers mark the event as handled.
Which code segment should you add to the constructor of the user control.?
A. txtInput.TextChanged+=Audit_TextChanged;
B. AddHandler (TextBox.TextChangedEvent, new RoutedEventHandler (Audit_TextChanged), true);
C. EventManager.RegisterClassHandler (typeof (TextBox),TextBox.TextChangedEvent, new
RoutedEventHandler (Audit_TextChanged), true);
D. EventManager.RegisterClassHandler (typeof (TextBox), TextBox.TextChangedEvent, new
RoutedEventHandler (Audit_TextChanged), false);
Answer: B
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NO.5 You use Microsoft .NET Framework 4 to create a Windows Forms application.
You add a new class named Customer to the application.
You select the Customer class to create a new object data source.
You add the following components to a Windows Form:
- A BindingSource component named customerBindingSource that is data-bound to the Customer object
data source.
- A set of TextBox controls to display and edit the Customer object properties.
- Each TextBox control is data-bound to a property of the customerBindingSource component.
- An ErrorProvider component named errorProvider that validates the input values for each TextBox
control.
You need to ensure that the input data for each TextBox control is automatically validated by using the
ErrorProvider component.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)
A. Implement the validation rules inside the Validating event handler of each TextBox control by throwing
an exception when the value is invalid.
B. Implement the validation rules inside the TextChanged event handler of each TextBox control by
throwing an exception when the value is invalid.
C. Implement the validation rules inside the setter of each property of the Customer class by throwing an
exception when the value is invalid.
D. Add the following code segment to the InitializeComponent method of the Windows Form.
this.errorProvider.DataSource = this.customerBindingSource;
E. Add the following code segment to the InitializeComponent method of the Windows Form.
this.errorProvider.DataSource = this.customerBindingSource.DataSource;
this.errorProvider.DataMember = this.customerBindingSource.DataMember;
Answer: CD
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NO.6 You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.
You write the following code fragment.
<StackPanel>
<StackPanel.Resources>
<Style TargetType="{x:Type Button}">
<EventSetter Event="Click" Handler="ButtonHandler"/>
</Style>
</StackPanel.Resources>
<Button Name="OkButton">Ok</Button>
<Button Name="CancelButton" Click="CancelClicked">Cancel</Button>
</StackPanel>
You need to ensure that the ButtonHandler method is not executed when the user clicks the CancelButton
button.
Which code segment should you add to the code-behind file?
A. private void CancelClicked(object sender, RoutedEventArgs e)
{
Button btn = (Button)sender;
btn.Command = null;
}
B. private void CancelClicked(object sender, RoutedEventArgs e) {
Button btn = (Button)sender;
btn.IsCancel = true;
}
C. private void CancelClicked(object sender, RoutedEventArgs e) {
e.Handled = true;
}
D. private void CancelClicked(object sender, RoutedEventArgs e) {
e.Handled = false;
}
Answer: C
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NO.7 You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF)
application.
You write the following code segment. (Line numbers are included for reference only.)
01public class Contact
02{
03private string _contactName;
04
05public string ContactName {
06get { return _contactName; }
07set { _contactName = value; }
08}
09
10}
You add the following code fragment within a WPF window control.
<TextBox>
<TextBox.Text>
<Binding Path="ContactName" UpdateSourceTrigger="PropertyChanged">
<Binding.ValidationRules>
<DataErrorValidationRule />
</Binding.ValidationRules>
</Binding>
</TextBox.Text>
</TextBox>
The TextBox control is data-bound to an instance of the Contact class.
You need to ensure that the Contact class contains a business rule to ensure that the ContactName
property is not empty or NULL.
You also need to ensure that the TextBox control validates the input data.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two).
A. Replace line 01 with the following code segment. public class Contact : IDataErrorInfo
B. Replace line 01 with the following code segment. public class Contact : ValidationRule
C. Replace line 01 with the following code segment. public class Contact : INotifyPropertyChanging
D. Add the following code segment at line 04. public event PropertyChangingEventHandler
PropertyChanging;
E. Modify line 07 with the following code segment:
set {
if (this.PropertyChanging != null)
PropertyChanging(this, new
PropertyChangingEventArgs("ContactName"));
if (string.IsNullOrEmpty(value))
throw new ApplicationException("Contact name is required");
_contactName = value;
}
F. Add the following code segment at line 09.
public string Error {
public string this[string columnName] {
get {
if (columnName == "ContactName" &&
string.IsNullOrEmpty(this.ContactName))
return "Contact name is required";
return null;
}
}
Answer: AF
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NO.8 You use Microsoft .NET Framework 4 to create a Windows Presentation Foundation (WPF) application.
You write the following code fragment.
<StackPanel TextBox.PreviewTextInput="StackPanel_PreviewTextInput">
<TextBox Name="TxtBoxA"/>
<TextBox Name="TxtBoxB"/>
<TextBox Name="TxtBoxC"/>
</StackPanel>
You create an event handler named StackPanel_PreviewTextInput. You also have a collection of strings
named Keywords.
You need to ensure that TxtBoxA and TxtBoxB do not contain any of the strings in the Keywords
collections.
Which code segment should you use?
A. private void StackPanel_PreviewTextInput( object sender, TextCompositionEventArgs e)
{ FrameworkElement feSource = sender as FrameworkElement;
if (feSource.Name == "TxtBoxA" || feSource.Name == "TxtBoxB")
{ foreach(string keyword in Keywords)
{
if(e.Text.Contains(keyword)) {
e.Handled = false;
return;
}
}} e.Handled = true;
} }
B. private void StackPanel_PreviewTextInput( object sender, TextCompositionEventArgs e) {
FrameworkElement feSource = e.Source as FrameworkElement;
f (feSource.Name == "TxtBoxA" || feSource.Name == "TxtBoxB")
f (feSource.Name == "TxtBoxA" || feSource.Name == "TxtBoxB") {
foreach(string keyword in Keywords)
{
if(e.Text.Contains(keyword)) {
e.Handled = false;
return;
}
} e.Handled = true;
C. private void StackPanel_PreviewTextInput( object sender, TextCompositionEventArgs e)
{
FrameworkElement feSource = sender as FrameworkElement;
if (feSource.Name == "TxtBoxA" || feSource.Name == "TxtBoxB")
{ foreach(string keyword in Keywords)
{ if(e.Text.Contains(keyword)) {
e.Handled = true;
return; }
} e.Handled = false;
} }
D. private void StackPanel_PreviewTextInput( object sender, TextCompositionEventArgs e)
{ FrameworkElement feSource = e.Source as FrameworkElement;
if (feSource.Name == "TxtBoxA" || feSource.Name == "TxtBoxB")
{
foreach(string keyword in Keywords)
{ if(e.Text.Contains(keyword)) {
e.Handled = true;
return;
} } e.Handled = false;
}
}
Answer: D
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