You are developing a Windows Forms application that contains a DataGridView control. The DataGridView capture the customer’s name, address, and phone number.

You have been asked to provide data validation in a DataGridView to prevent users from leaving the..

You need to ensure that users cannot tab out of the name field without entering data

What should you do ?

….
set
{
_Data = value;
}
}

private void NofityPropertyChanged(string info)
{
if (PropertyChanged != null)
{
PropertyChanged(this, new PropertyChangedEventArgs(info));
}
}

The UI is not being updated when the Data property is set.

You need to ensure that the DisplayData class correctly updates the UI when the Data ..

What should you do ?

You are developing a Windows Presentation Foundation (WPF) application that displays opportunities from List<T.. class named Lead. The Lead class contains the properties Title and Revenue.

You add a DataGrid control named dgQualifiedLeads to the MainWindow.xaml file. You set the ItemsSource property to Leads as follows.

ICollectionView Leads;
public MainWindow()
{
IntializeComponent();
Leads = CollectionViewSource.GetDefaultView(
new List<Lead>(
new Lead[]
{
new Lead() { Title = “Title1″, Revenue=”1234.33”},
new Lead() { Title = “Title2″, Revenue=”1234.33”},
new Lead() { Title = “Title3″, Revenue=”1234.33”},
new Lead() { Title = “Title4″, Revenue=”1234.33”},
new Lead() { Title = “Title5″, Revenue=”1234.33”}
}
));

dgQualifiedLeads.ItemsSource = Leads;
}

You need to ensure that CollectionViewSource is used to filter the list to display only Lead objects with revenue …

What should you do ?

You are developing WPF application for managing student information… btnSort and a DataGrid control named dgStudents on the design surface of the MainWindow.xaml properties : FirstName and LastName. You create the following code segment in the constructor of..

Students = new List<Student>(
new Student[]
{
new Student() { FirstName = “Nicole”, LastName = “Holiday” },
…
}
);

The DataGrid control displays the list of students unsorted.

You need to ensure that the list of students is sorted by last name.

Which code segment should you add to the click event handler of the Button control ?

<TextBlock Text=”{Binding Path=PhoneNumber, Converter={StaticResource PhoneFormatConverter}}”>

You need to ensure that phone numbers are displayed in the following format : (###) ### – ###

Which markup segment should you use ?

Grafic displayed.
<Grid.Columndefinitions>
<Columndefinition>
<Columndefinition>
</Grid.Columndefinitions>

<Grid.Rowdefinition>
<RowDefinition/>
<RowDefinition/>
<RowDefinition/>
</Grid.Rowdefinition>

<TextBlock Grid.Row=”0″ HorizontalAllignment=”Center”>Product shipped</TextBlock>

When the application si run, it appears as follows

You need to ensure that the TextBlock control with the contents “Product shipped” is horizontal centered to the grid?

Which mark up segment should you add to the TextBlock control ?