Ankitware's Thought

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Sunday, 6 April 2014

Niit Window aap lab@home 8

Click below link to download:

1. John has developed a Windows Store app for viewing images.
https://drive.google.com/folderview?id=0ByVhF2onsiStNXpIaDhzS21XQWM&usp=sharing

2 . Ryan, an app developer, has developed an app that can be used to take notes. This app allows
the users to view, create, edit, and delete notes. Each note contains a title and a description. To
provide the preceding functionalities, the following pages are added in the app:
Notes: Displays the titles of the existing notes, if already added. When a user selects the title of
a note on this page, the details of the note are displayed on a new page. However, if no notes
have been added yet, the Notes page displays the message, Notes not available. In addition,
this page contains a control in the app bar to add a new note.
Add Note: Displays controls to specify the title and description of a note. In addition, it contains
controls in the app bar to save a note or cancel the action of adding a note.
Edit Note: Displays the controls containing the details of the selected note. In addition, it
contains controls in the app bar to save the edited note or cancel the action of editing a note.
Note Details: Displays the title and description of the selected note along with the controls to
delete and edit the current note. In addition, it contains a control in the app bar to navigate to the
home page.
Now, Ryan has been assigned the task to enhance the UI of the app by implementing the
following functionalities:
Display the entrance animation effect when the pages of the app are displayed.
In the Notes page, a popup menu needs to be added. This menu should be displayed when the
user right-clicks an item in the list box that displays the list of notes. The popup menu contains
the commands that allow the user to edit or delete the selected note.
The buttons in the App bar of the app need to be styled with the respective App bar button styles,
such as EditAppBarButtonStyle, DeleteAppBarButtonStyle, and HomeAppBarButtonStyle.
Display a message dialog for confirming a delete operation before deleting a note.

Help Ryan to enhance the app by adding the preceding functionalities.
https://drive.google.com/folderview?id=0ByVhF2onsiStTjV1ZDNoZndCeHM&usp=sharing

3. Ryan, a Windows Store app developer, needs to create a recipe app for desserts. The app is
expected to display the images of the various desserts whose recipes are available, as shown in
the following figure.
The Various Dessert Recipes
Whenever a user clicks on the image of a dessert, the page containing the recipe for the same is
displayed, as shown in the following figure.
The Page Containing the Recipe
In addition, every recipe page allows the user to go back to the main page of the app.
To enhance the appearance of the app, Ryan has applied styles to the previous buttons in the
app. In addition, to make the app more appealing, he wants to add animation to the pages of the
app. However, after applying the animation, when he tries to deploy the app, an exception is
thrown.
Help Ryan identify the reason of exception and provide a solution for the same.
https://drive.google.com/folderview?id=0ByVhF2onsiStUUtnR19qb0RtX3c&usp=sharing

4 .
Genelia has developed a reader app, which allows users to read a book and to move from one
page to another. The home page of the app is shown in the following figure.
The Home Page of the App
The content page of the app is shown in the following figure.
The Content Page of the App
To enhance the look and feel of the next and previous buttons, Genelia has applied styles to the
next and previous buttons. However, after applying the desired styles, when she tries to deploy the
app, an exception is thrown. Help Genelia identify the reason of exception and provide a solution
for the same.


https://drive.google.com/folderview?id=0ByVhF2onsiStaWVNWFg3U2FnSlk&usp=sharing

Saturday, 22 March 2014

3.database

Primary Key: DoctorID
Candidate Key:Doctor,ShiftID
Alternate Key: DoctoeDutyID

In the oreceding table, DoctorID and ShiftID are individually unique in every row.
Therefore, the columns, DoctorID and ShiftID, are candidate keys for the primary key.
However, the ShiftID column may contain duplicate values as two doctors may be on
the same shift. Therefore,DoctorID should be chasen as the primary key and ShiftID
as the alternate key.

2.Design an ER diagram for the following situation: An organization has two types of employees, salaried and wage earning. Both the types of employees have some common properties, such as employee code, employee name, and employee address. However, the salaried employees have other additional properties: basic, allowance, and House Rent Allowance (HRA). The wage earning employees have distinct properties that are daily wage and overtime.


1. Shopping Spree is a leading departmental store in Shanghai. The store has a number of regular customers who purchase bulk items. The store also conducts regular feedback sessions to analyze customer satisfaction levels. Chen, the Customer Analyst of Shopping Spree, has to make the ER diagram to represent the preceding situation, and then to map the ER diagram to the corresponding tables. Help Chen to do the same.


Tuesday, 25 February 2014

Identify the method that ensures that the content of the stream is cleared.

Identify the method that ensures that the content of the stream is cleared.
1. FlushAsync()
2. SaveAsync()

3. WriteAsync()

Solution:

1. FlushAsync()

Identify the code snippet that is used to save the session data of an app.

Identify the code snippet that is used to save the session data of an app.
1. SuspensionManager.SaveAsync();
2. MainPage.SaveAsync();

3. App.SaveAsync();

Solution:
1. SuspensionManager.SaveAsync();

Identify the file in which the Suspending event handler is defined.

Identify the file in which the Suspending event handler is defined.
  1. App.xaml.cs
  2. MainPage.xaml.cs
  3. App.xaml

Solution:
App.xaml.cs

Identify the circumstances in which an app is switched to the Suspended phase.

Identify the circumstances in which an app is switched to the Suspended phase.
1. The app is idle for at least 10 seconds.
2. A new app is launched by the user.

3. The system is running low on resources.

Solution:2. A new app is launched by the user.



Which one of the following instances is returned by the ShowAsync() method of the MessageDialog class?

Which one of the following instances is returned by the ShowAsync() method of the MessageDialog class?
1. Tapped
2. TextBlock
3. IUICommand

4. Button

Solution:
3. IUICommand

Which one of the following code snippets can be used to style a Button control with the numericButtonStyle style?

Which one of the following code snippets can be used to style a Button control with the numericButtonStyle style?
1. <Button Content="1" Style="{StaticResource   numericButtonStyle}"></Button>
2. <Button Content="1" Style="{Binding   numericButtonStyle}" ></Button>
3. <Button Content="1"   Style="{numericButtonStyle}"></Button>

4. <Button Content="1"   Style="numericButtonStyle"></Button>

Solution:
Solution:
1. <Button Content="1" Style="{StaticResource
  
numericButtonStyle}"></Button>

Which one of the following files is a resource dictionary?

Which one of the following files is a resource dictionary?
1. App.xaml.cs
2. StandardStyles.xaml
3. MainPage.xaml

4. Package.appxmanifest

Solution:
     2. StandardStyles.xaml

Monday, 24 February 2014

Genelia has developed a book app, which allows users to read a book and navigate from one page to another. The home page of the app is shown in the following figure.

Genelia has developed a book app, which allows users to read a book and navigate from one
page to another. The home page of the app is shown in the following figure.
The Home Page of the App
The content page of the app is shown in the following figure.
The Content Page of the App
However, this app does not allow the users to move back from a page to the previous page.
Moreover, when the users reach the last page, no control is provided to move back to the home
page.
Help Genelia identify the reason behind the preceding problems and provide a solution for the
same.


Solution;

DOWNLOAD from here:

Charles is assigned the task to develop a Windows Store app named MyToDo, which allows users to maintain a to-do list. It allows the user to add or delete the tasks to be performed. For this, the controls are available on the App bar of the app. The form for accepting the details from the user should be similar to the one shown in the following figure.

Charles is assigned the task to develop a Windows Store app named MyToDo, which allows users
to maintain a to-do list. It allows the user to add or delete the tasks to be performed. For this, the
controls are available on the App bar of the app. The form for accepting the details from the user
should be similar to the one shown in the following figure.
The Expected Interface of the App
When the user adds tasks, they should be displayed in the form as shown in the following figure.
The Expected Interface of the App after Adding Tasks
To delete an existing task, the user needs to select the task, and then right-click the blank area of
the app. The user can delete the selected task by clicking the Remove button that appears on the
App bar, as shown in the following figure.
The Remove Button on the App Bar
Charles has added the required controls to allow addition of tasks in the app. However, when a
user adds a task, he/she is able to see only the name of the task. Further, when a user clicks the
Remove button available on the App bar, the records are not deleted.
Help Charles to identify the reason and the solution to the problem.

https://drive.google.com/file/d/0ByVhF2onsiStZ3Y0eWwtQVBMSGM/edit?usp=sharing

Solution;
XAML FILE:
https://drive.google.com/file/d/0ByVhF2onsiStRFF6UGE2dFUyOEE/edit?usp=sharing

CS FILE:
https://drive.google.com/file/d/0ByVhF2onsiStSmhJZ2UwT3VvdUU/edit?usp=sharing

Ryan, a Windows Store app developer, needs to create a recipe app for desserts. The app is expected to display the images of the various desserts whose recipes are available, as shown in the following figure.

Ryan, a Windows Store app developer, needs to create a recipe app for desserts. The app is
expected to display the images of the various desserts whose recipes are available, as shown in
the following figure.
The Expected Interface of the App
Whenever a user clicks the image of a dessert, the app should navigate to a page containing the
recipe for the same. The expected interface of the recipe page is shown in the following figure.
The Expected Interface of the Recipe Page
In addition, each recipe page should allow the user to go back to the main page of the app.
Help Ryan to develop the preceding app.

Solution:
Download from here:

3. Ryan, an app developer, has been assigned the

3. Ryan, an app developer, has been assigned the

Solution:

Select New
New Project
The New Project dialog box is displayed
Ensure that the Windows store node is selected under the visual C# node
Select Blank App(XAML)
ensure that the SolutionExplorer windows is open
Right-click the App1 folder
Select Add
Select Class
The Add New Item- App1 dialog box is displayed
Replace the existing text in the Name text box with App1
The App1.cs file is displayed

-----------------------------------------------------------------------------------------------
using system.Collections.objectModel;
namespace App1
{
     class NotesCollection
     {
      public sring ObservableCollection<Note> Note = new ObservableCollection<Note>
     }
     class Note
      {
       public string Title {get; set}
       public string Content {get; set}
       public Note(string Title, string Content)
       {
          this.Title = Title;
          this.Content = Content;
       }
      }
}
---------------------------------------------------------------------------------------------
Contract the Assets folder
Double-click the MailPage.XAML file

Steve has to develop a Windows Store app for displaying the various dishes available in a restaurant. The expected interface of the app is shown in the following figure.

Steve has to develop a Windows Store app for displaying the various dishes available in a
restaurant. The expected interface of the app is shown in the following figure.
The Expected Interface of the App
It is expected that whenever an item is selected from the list present on the left side, the
corresponding information is displayed on the right side of the app page. However, Steve is not
able to implement this functionality in the app. When he selects an item from the list, he does not
see any information on the right side. Help Steve find out the reason and solution for the preceding
problem.

Solution:

XAML CODE:

"<Page
    x:Class="DishesApp.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:DishesApp"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Grid Background="#FFD007F0">
        <ListView  x:Name="lst" HorizontalAlignment="Left" Height="688" Margin="64,46,0,0" VerticalAlignment="Top" Width="337"  FontSize="24" SelectionChanged="lst_selectionChanged"  >

        </ListView>
        <Viewbox>
            <StackPanel x:Name="stk" Orientation="Vertical" Margin="722,10,100,34" Width="458">
                <Image x:Name="img" Source="" HorizontalAlignment="Left"  Margin="20,20,0,20" VerticalAlignment="Top" />
                <TextBlock x:Name="head" Text="" FontSize="40" Margin="20,20,62,20" FontWeight="Bold" />
                <TextBlock x:Name="para" TextWrapping="Wrap" Text="" FontSize="30" Margin="20,20,62,20"/>
            </StackPanel>
        </Viewbox>
    </Grid>
</Page>
"

--------------------------------------------------------------------------------------------------

CS CODE:
"using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Media.Imaging;
using Windows.UI.Xaml.Navigation;

// The Blank Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=234238

namespace DishesApp
{
    /// <summary>
    /// An empty page that can be used on its own or navigated to within a Frame.
    /// </summary>
    public sealed partial class MainPage : Page
    {
        public MainPage()
        {
            this.InitializeComponent();
        }
         private void lst_selectionChanged(object sender, selectionChangedEventArgs e)
        {
           if (lst.selectionItem.Tostring() == "Burger")
            {
               img.Source = New BitmapImage(new Uri("ms-appx:///Assets/Burger.jpg"));
               head.Text = "Burger";
               pare.Text = "Fresh juicy has burgers at a pocket-friendly of"
            }
            else if (lst.SelectedItem.Tostring() == "Cheese Sandwich")
            {
               img.Source = New BitmapImage(new Uri("ms-appx:///Assets/Cheese Sandwich.jpg"));
               head.Text = "Cheese Sandwich";
               pare.Text = "Mouth-watering cheesy sandwiches at a price of 2$"
            }
             else if (lst.SelectedItem.Tostring() == "Noodles")
            {
               img.Source = New BitmapImage(new Uri("ms-appx:///Assets/Noodles.jpg"));
               head.Text = "Noodles";
               pare.Text = "Traditional Noodles at a price of 3$"
            }
             else if (lst.SelectedItem.Tostring() == "Pasta Salad")
            {
               img.Source = New BitmapImage(new Uri("ms-appx:///Assets/Pasta Salad.jpg"));
               head.Text = "Pasta Salad";
               pare.Text = "Zesty summary Pasta Salad at a price of 2$"
            }
             else if (lst.SelectedItem.Tostring() == "Pizza")
            {
               img.Source = New BitmapImage(new Uri("ms-appx:///Assets/Pizza.jpg"));
               head.Text = "Pizza";
               pare.Text = "Lip smscking classic pizza at a rate of 5$"
            }
           
            }
        }
        /// <summary>
        /// Invoked when this page is about to be displayed in a Frame.
        /// </summary>
        /// <param name="e">Event data that describes how this page was reached.  The Parameter
        /// property is typically used to configure the page.</param>
        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            lst.Items.Add(" Burger");
            lst.Items.Add(" Cheese Sandwich");
            lst.Items.Add(" Noodles");
            lst.Items.Add(" Pasta Salad");
            lst.Items.Add(" Pizza");
        }
    }
}
"

Rhea has designed an app that should convert the temperature specified in Celsius to the corresponding temperature in Fahrenheit and vice versa. The interface of the app is shown in the following figure.


Rhea has designed an app that should convert the temperature specified in Celsius to the
corresponding temperature in Fahrenheit and vice versa. The interface of the app is shown in the
following figure.
The Interface of the App
Rhea wants to implement the following functionalities in the app:
When the user enters temperature in the Celsius text box, the corresponding temperature in
Fahrenheit should be displayed in the Fahrenheit text box and vice versa.
If the value entered in a text box is deleted, the other text box is updated accordingly.
If the user enters any value other than a number or . (Dot) in one of the text boxes, the Invalid
input message should be displayed in the other text box.
However, while testing the app, Rhea finds that the Fahrenheit text box is not updated when a
number is entered in the Celsius text box and vice versa.
Help Rhea identify the reason behind this problem and provide the solution for the same.

Solution:

XAML CODE:
"
<Page
    x:Class="ConverterApp.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:ConverterApp"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Viewbox>
        <Grid Background="{StaticResource ApplicationPageBackgroundThemeBrush}" Height="900" Width="1600">
            <TextBlock Text="Celsius" FontSize="100" Margin="122,122,1002,668"></TextBlock>
            <TextBox x:Name="txtDegreeCelsius" FontSize="70" Margin="122,237,121,554" keyUp="txtDegreeCelsius_KeyUp"></TextBox>
            <TextBlock Text="Fahrenheit" FontSize="100" Margin="122,463,931,326"/>
            <TextBox x:Name="txtDegreeFahrenheit" FontSize="70" Margin="122,582,121,209" keyUp="txtDegreeCelsius_KeyUp" />
        </Grid>
    </Viewbox>
</Page>

"
--------------------------------------------------------------------------------
CS FILE CODE:

"using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;

// The Blank Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=234238

namespace ConverterApp
{
    /// <summary>
    /// An empty page that can be used on its own or navigated to within a Frame.
    /// </summary>
    public sealed partial class MainPage : Page
    {
        public MainPage()
        {
            this.InitializeComponent();
        }

       private void txtDegreeCelsius_KeyUp(object sender, KeyRoutedEventArge e)
        {
         try
          {
              if (!string.IsnullOrEmpty(txtDegreeCelsius.Text.Trim()))
                  txtDegreeFahrenheit.Text = (Convert.ToDouble(txtDegreeCelsius.));
              else
                 txtDegreeFahrenheit.text = "";
          }
          catch (Exception ex)
           {
           txtDegreeFahrenheit.text ="Invalid input";
           }
        }
       
       private void txtDegreeCelsius_KeyUp(object sender, KeyRoutedEventArge e)
        {
         try
          {
              if (!string.IsnullOrEmpty(txtDegreeCelsius.Text.Trim()))
                  txtDegreeFahrenheit.Text = (Convert.ToDouble(txtDegreeCelsius.));
              else
                 txtDegreeFahrenheit.text = "";
          }
          catch (Exception ex)
           {
           txtDegreeFahrenheit.text ="Invalid input";
           }
        }      
        /// <summary>
        /// Invoked when this page is about to be displayed in a Frame.
        /// </summary>
        /// <param name="e">Event data that describes how this page was reached.  The Parameter
        /// property is typically used to configure the page.</param>
        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
        }
    }
}
"

Sam, a Windows Store app developer, wants to create a simple piano app for children. He expects the interface of the piano to look like the one shown in the following figure.

Sam, a Windows Store app developer, wants to create a simple piano app for children. He expects
the interface of the piano to look like the one shown in the following figure.
The Expected Interface of the App
Sam has created the desired interface of the app.
Now, he wants to include the basic music notes in the piano. In addition, he intends to implement
certain functionality in the piano, which plays a music note when a piano button is pressed.
Help Sam create the preceding app.

Solution:

XAML CODE:

"<Page
    x:Class="Piano.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:Piano"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Grid Background="{StaticResource ApplicationPageBackgroundThemeBrush}">
        <Grid.RowDefinitions>
            <RowDefinition Height="400"></RowDefinition>
            <RowDefinition Height="Auto"></RowDefinition>
            <RowDefinition></RowDefinition>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition></ColumnDefinition>
        </Grid.ColumnDefinitions>
        <Image Grid.Row="0" Grid.Column="0" Source="Assets/Background.jpg" Stretch="UniformToFill" Margin="-2,0,2,120"/>
        <Rectangle Grid.Column="0" Height="20" Margin="0,260,0,120">
            <Rectangle.Fill>
                <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                    <GradientStop Color="#FFF7F7EB" Offset="1"/>
                    <GradientStop Color="#FFEDF70D"/>
                </LinearGradientBrush>
            </Rectangle.Fill>

        </Rectangle>
        <Grid Grid.Column="0" Margin="0,280,0,0" Grid.RowSpan="3">
            <Grid x:Name="grdChordButtons" Tapped="grdChordButtons_Tapped">
                <Grid.RowDefinitions>
                    <RowDefinition></RowDefinition>
                </Grid.RowDefinitions>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition></ColumnDefinition>
                    <ColumnDefinition></ColumnDefinition>
                    <ColumnDefinition></ColumnDefinition>
                    <ColumnDefinition></ColumnDefinition>
                    <ColumnDefinition></ColumnDefinition>
                    <ColumnDefinition></ColumnDefinition>
                    <ColumnDefinition></ColumnDefinition>
                    <ColumnDefinition></ColumnDefinition>
                </Grid.ColumnDefinitions>

                <Button Background="White" x:Name="C" FontSize="60" Grid.Column="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="White" x:Name="D" FontSize="60" Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="White" x:Name="E" FontSize="60" Grid.Column="2" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="White" x:Name="F" FontSize="60" Grid.Column="3" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="White" x:Name="G" FontSize="60" Grid.Column="4" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="White" x:Name="A" FontSize="60" Grid.Column="5" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="White" x:Name="B" FontSize="60" Grid.Column="6" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="White" x:Name="c" FontSize="60" Grid.Column="7" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
            </Grid>
            <Grid x:Name="grdBlackChordButtons" Height="320" VerticalAlignment="Top" Margin="95,0,86,0">
                <Grid.RowDefinitions>
                    <RowDefinition></RowDefinition>
                </Grid.RowDefinitions>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition ></ColumnDefinition>
                    <ColumnDefinition ></ColumnDefinition>
                    <ColumnDefinition ></ColumnDefinition>
                    <ColumnDefinition ></ColumnDefinition>
                    <ColumnDefinition ></ColumnDefinition>
                    <ColumnDefinition ></ColumnDefinition>
                    <ColumnDefinition ></ColumnDefinition>
                </Grid.ColumnDefinitions>

                <Rectangle Fill="Black" Width="100" Stroke="Black" StrokeThickness="2" Grid.Column="0" Grid.Row="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"></Rectangle>
                <Rectangle Fill="Black" Width="100" Stroke="Black" StrokeThickness="2" Grid.Column="1" Grid.Row="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"></Rectangle>
                <Rectangle Fill="Black" Width="100" Stroke="Black" StrokeThickness="2" Grid.Column="2" Grid.Row="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"></Rectangle>
                <Rectangle Fill="Black" Width="100" Stroke="Black" StrokeThickness="2" Grid.Column="3" Grid.Row="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"></Rectangle>
                <Rectangle Fill="Black" Width="100" Stroke="Black" StrokeThickness="2" Grid.Column="4" Grid.Row="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"></Rectangle>
                <Rectangle Fill="Black" Width="100" Stroke="Black" StrokeThickness="2" Grid.Column="5" Grid.Row="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"></Rectangle>
                <Rectangle Fill="Black" Width="100"  Stroke="Black" StrokeThickness="2" Grid.Column="6" Grid.Row="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"></Rectangle>
                <Rectangle Fill="Black" Width="100" Stroke="Black" StrokeThickness="2" Grid.Column="7" Grid.Row="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"></Rectangle>
                <Button Background="Black" x:Name="bC" FontSize="60" Width="100" Grid.Column="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="Black" x:Name="bD" FontSize="60" Width="100" Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="Black" x:Name="bE" FontSize="60" Width="100" Grid.Column="2" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="Black" x:Name="bF" FontSize="60" Width="100" Grid.Column="3" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="Black" x:Name="bG" FontSize="60" Width="100" Grid.Column="4" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="Black" x:Name="bA" FontSize="60" Width="100" Grid.Column="5" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="Black" x:Name="bB" FontSize="60" Width="100" Grid.Column="6" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>

            </Grid>

        </Grid>
        <MediaElement  x:Name="pianoChordPlayer" HorizontalAlignment="Left" Height="100" Margin="1084,257,0,0" VerticalAlignment="Top" Width="100" Balance="0.5" Stereo3DVideoRenderMode="Stereo" Tapped="grdChordButtons_Tapped" />
    </Grid>
</Page>
"

----------------------------------------------------------------------------------
CS file code:

"<Page
    x:Class="Piano.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:Piano"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Grid Background="{StaticResource ApplicationPageBackgroundThemeBrush}">
        <Grid.RowDefinitions>
            <RowDefinition Height="400"></RowDefinition>
            <RowDefinition Height="Auto"></RowDefinition>
            <RowDefinition></RowDefinition>
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition></ColumnDefinition>
        </Grid.ColumnDefinitions>
        <Image Grid.Row="0" Grid.Column="0" Source="Assets/Background.jpg" Stretch="UniformToFill" Margin="-2,0,2,120"/>
        <Rectangle Grid.Column="0" Height="20" Margin="0,260,0,120">
            <Rectangle.Fill>
                <LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0">
                    <GradientStop Color="#FFF7F7EB" Offset="1"/>
                    <GradientStop Color="#FFEDF70D"/>
                </LinearGradientBrush>
            </Rectangle.Fill>

        </Rectangle>
        <Grid Grid.Column="0" Margin="0,280,0,0" Grid.RowSpan="3">
            <Grid x:Name="grdChordButtons" Tapped="grdChordButtons_Tapped">
                <Grid.RowDefinitions>
                    <RowDefinition></RowDefinition>
                </Grid.RowDefinitions>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition></ColumnDefinition>
                    <ColumnDefinition></ColumnDefinition>
                    <ColumnDefinition></ColumnDefinition>
                    <ColumnDefinition></ColumnDefinition>
                    <ColumnDefinition></ColumnDefinition>
                    <ColumnDefinition></ColumnDefinition>
                    <ColumnDefinition></ColumnDefinition>
                    <ColumnDefinition></ColumnDefinition>
                </Grid.ColumnDefinitions>

                <Button Background="White" x:Name="C" FontSize="60" Grid.Column="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="White" x:Name="D" FontSize="60" Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="White" x:Name="E" FontSize="60" Grid.Column="2" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="White" x:Name="F" FontSize="60" Grid.Column="3" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="White" x:Name="G" FontSize="60" Grid.Column="4" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="White" x:Name="A" FontSize="60" Grid.Column="5" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="White" x:Name="B" FontSize="60" Grid.Column="6" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="White" x:Name="c" FontSize="60" Grid.Column="7" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
            </Grid>
            <Grid x:Name="grdBlackChordButtons" Height="320" VerticalAlignment="Top" Margin="95,0,86,0">
                <Grid.RowDefinitions>
                    <RowDefinition></RowDefinition>
                </Grid.RowDefinitions>
                <Grid.ColumnDefinitions>
                    <ColumnDefinition ></ColumnDefinition>
                    <ColumnDefinition ></ColumnDefinition>
                    <ColumnDefinition ></ColumnDefinition>
                    <ColumnDefinition ></ColumnDefinition>
                    <ColumnDefinition ></ColumnDefinition>
                    <ColumnDefinition ></ColumnDefinition>
                    <ColumnDefinition ></ColumnDefinition>
                </Grid.ColumnDefinitions>

                <Rectangle Fill="Black" Width="100" Stroke="Black" StrokeThickness="2" Grid.Column="0" Grid.Row="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"></Rectangle>
                <Rectangle Fill="Black" Width="100" Stroke="Black" StrokeThickness="2" Grid.Column="1" Grid.Row="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"></Rectangle>
                <Rectangle Fill="Black" Width="100" Stroke="Black" StrokeThickness="2" Grid.Column="2" Grid.Row="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"></Rectangle>
                <Rectangle Fill="Black" Width="100" Stroke="Black" StrokeThickness="2" Grid.Column="3" Grid.Row="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"></Rectangle>
                <Rectangle Fill="Black" Width="100" Stroke="Black" StrokeThickness="2" Grid.Column="4" Grid.Row="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"></Rectangle>
                <Rectangle Fill="Black" Width="100" Stroke="Black" StrokeThickness="2" Grid.Column="5" Grid.Row="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"></Rectangle>
                <Rectangle Fill="Black" Width="100"  Stroke="Black" StrokeThickness="2" Grid.Column="6" Grid.Row="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"></Rectangle>
                <Rectangle Fill="Black" Width="100" Stroke="Black" StrokeThickness="2" Grid.Column="7" Grid.Row="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"></Rectangle>
                <Button Background="Black" x:Name="bC" FontSize="60" Width="100" Grid.Column="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="Black" x:Name="bD" FontSize="60" Width="100" Grid.Column="1" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="Black" x:Name="bE" FontSize="60" Width="100" Grid.Column="2" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="Black" x:Name="bF" FontSize="60" Width="100" Grid.Column="3" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="Black" x:Name="bG" FontSize="60" Width="100" Grid.Column="4" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="Black" x:Name="bA" FontSize="60" Width="100" Grid.Column="5" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
                <Button Background="Black" x:Name="bB" FontSize="60" Width="100" Grid.Column="6" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>

            </Grid>

        </Grid>
        <MediaElement  x:Name="pianoChordPlayer" HorizontalAlignment="Left" Height="100" Margin="1084,257,0,0" VerticalAlignment="Top" Width="100" Balance="0.5" Stereo3DVideoRenderMode="Stereo" Tapped="grdChordButtons_Tapped" />
    </Grid>
</Page>
"

John is developing a Windows Store app for viewing images. He has created the UI of the app, as shown in the following figure.


John is developing a Windows Store app for viewing images. He has created the UI of the app, as
shown in the following figure.
The UI of the App
Now, he has to add the functionalities to the app so that:
The users are able to select an image from the Image List section.
Once the user selects the image from the Image List section, the preview of the selected image
is displayed in the Image Preview section.
The preview of the selected image uniformly fits in the defined area.
Help John to add the preceding functionalities to the app.

Solution:
XAML CODE:

<Page
    x:Class="ImageViewer.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:local="using:ImageViewer"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d">

    <Viewbox>
        <Grid Background="{StaticResource ApplicationPageBackgroundThemeBrush}" VerticalAlignment="Center" HorizontalAlignment="Center">
            <Button Content="Image List" HorizontalAlignment="Left" Margin="10,10,0,0" BorderThickness="0" FontSize="24" Background="Blue" VerticalAlignment="Top" Width="315"/>
            <ListBox  HorizontalAlignment="Left" Height="697" Margin="10,61,0,0" VerticalAlignment="Top" Width="315" SelectionChanged="IstBoxPictureList_SelectionChanged"/>

            <Button Content="Image Preview"  HorizontalAlignment="Left" Margin="346,10,0,0" BorderThickness="0" FontSize="24" Background="Blue" VerticalAlignment="Top" Width="1010"/>
            <Button IsEnabled="False" HorizontalAlignment="Left" Height="697" Margin="346,61,0,0" VerticalAlignment="Top" Width="1010">
                <Image x:Name="Imgpreview" Source="Assets/1.jpg" Stretch="Uniform"></Image>
            </Button>


        </Grid>
    </Viewbox>
</Page>
----------------------------------------------------------------------------------------------------
CS Code
using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using Windows.Foundation;
using Windows.Foundation.Collections;
using Windows.UI.Xaml;
using Windows.UI.Xaml.Controls;
using Windows.UI.Xaml.Controls.Primitives;
using Windows.UI.Xaml.Data;
using Windows.UI.Xaml.Input;
using Windows.UI.Xaml.Media;
using Windows.UI.Xaml.Navigation;
using Windows.UI.Xaml.Media.Imaging;

// The Blank Page item template is documented at http://go.microsoft.com/fwlink/?LinkId=234238

namespace ImageViewer
{
    /// <summary>
    /// An empty page that can be used on its own or navigated to within a Frame.
    /// </summary>
    public sealed partial class MainPage : Page
    {
        public MainPage()
        {
            this.InitializeComponent();
        }
         public void loadPictureList()
        {
         if(int i=1; i<9; i++)
           {
            IstboxPictureList.Iteme.Add(1 + ".jpg");
           }
           IstboxPictureList.SelectedIndex = 0;
         }
        private void IstboxPictureList_SeletionChanged(object sender, SeletionChanged e)
        {
         imgPrivate.Sourcr = New BitmapImage(New Uri("ms-appx:///Assers/"+ lstboxPictureList.SelectedValue));
        }
        /// <summary>
        /// Invoked when this page is about to be displayed in a Frame.
        /// </summary>
        /// <param name="e">Event data that describes how this page was reached.  The Parameter
        /// property is typically used to configure the page.</param>
        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
           loadPictureList(); 
        }
    }
}


Steve has to develop a windows Store app for displaying the various dishes available in a restaurant. The expected interfece of the app is shown in the following figure.

4. Steve has to develop a windows Store app for displaying the various dishes available in
   a restaurant. The expected interfece of the app is shown in the following figure.

Ans:= (XAML Code)

      <Grid Background="#FFD007F0">
          <ListView x:Name="lst" HorizontalAlignment="Left" Height="688" Margin="64,46,0,0" VerticalAlignment="Top" Width="337" FontSize="24" SelectionChanged="lst_SelectionChanged">
     
          </ListView>
          <Viewbox>
              <StackPanel x:Name="stk" Orientation="Vertical" Margin="722,10,100,34" Width="458">
                  <Image X:Name="img" Source="" HorizontalAlignment="Left" Margin="20,20,0,20" VerticalAlignment="Top"/>

   


(CCS Code)


     Privete void lst_SelectionChanged(object sender, SelectionChangedEventArgs)
      {
           if (lst.SelectedItem.ToString()=="Burger")
           {
               img.Source = new BitmapImage(New Uri("as-appx:///Assets/Burger.jpg"));
               head.Text = "Burger";
               para.Text = "Fresh juicy ham burgers at a pocket-friendly price of";
           }
           else if (lst.SelectedItem.ToString()=="Cheese Sandwich")
           {
             
               img.Source = new BitmapImage(New Uri("as-appx:///Assets/Cheese Sandwich.jpg"));
               head.Text = "Cheese Sandwich";
               para.Text = "Mouth-watering Cheese Sandwichs at a price of 2$";
           }
           else if (lst.SelectedItem.ToString()=="Noodles")
            {
             
               img.Source = new BitmapImage(New Uri("as-appx:///Assets/Noodles.jpg"));
               head.Text = "Noodles";
               para.Text = "Traditional Asian Noodles at a price of 3$";
           }
            else if (lst.SelectedItem.ToString()=="pasta salad")
            {
             
               img.Source = new BitmapImage(New Uri("as-appx:///Assets/Pasta salad.jpg"));
               head.Text = "Pasta salad";
               para.Text = "Zesty summary Pasta salad at a very low price of 2$";
           }
             else if (lst.SelectedItem.ToString()=="Pizze")
             {
             
               img.Source = new BitmapImage(New Uri("as-appx:///Assets/Pizze.jpg"));
               head.Text = "Pizze";
               para.Text = "Lip amacking classic Pizze at a rate of 5$";
           }
      }

Rhea has designeed an app that should convet the temperature specified in Celsius to the corresponding temperature in Fahrenheit and vice versa. The interface of the app is shown in the following figure.

3. Rhea has designeed an app that should convet the temperature specified in Celsius to the
   corresponding temperature in Fahrenheit and vice versa. The interface of the app is shown in the
   following figure.


Ans:= (XAML Code)
 
       <Viewbox>
         <Grid Background="{StaticResource ApplicationPageBackgroundThemeBrush}" Height="900" Width="1600">
         <TextBlock Text="Celsius" FontSize="100" margin="122,122,1002,668"></Textbox>
         <TextBox X:Name="txtDegreeCelsius" FontSize="70" Margin="122,257,121,654" KeyUp="tetDegreeCelsius_KeyUp"></TextBox>
         <TextBlock Text="Fahreenheit" FontSize="100" margin="122,463,931,326"/>
         <TextBox X:Name="txtDegreeFahreenheit" FontSize="70" Margin="122,257,121,209"KeyUp="tetDegreeFahrenheit_KeyUp"/>
     </Grid>

     
(CCS Code)

       Privete void txtDegreeCelsius_KeyUp(object sender, KeyRoutedEventArgs e)
        {
            try
             {
                 if (!string.IsNullOrEmpty(txtDegreeCelsius.Text.Trim()))
                     txtDegreeFahreheit.Text = (Convert.Todouble(txtDegreeCelsius.Text.Trim()))
                 else
                     txtDegreeFahrenheit.Text = "";
             }
             catch (Exception ex)
             {
                  txtDegreeFahrenheit.Text = "Invalid input";
             }
        }
     
     
       Privete void txtDegreeCelsius_KeyUp(object sender, KeyRoutedEventArgs e)
        {
            try
             {
                 if (!string.IsNullOrEmpty(txtDegreeCelsius.Text.Trim()))
                     txtDegreeFahreheit.Text = (Convert.Todouble(txtDegreeCelsius.Text.Trim()))
                 else
                     txtDegreeFahrenheit.Text = "";
             }
             catch (Exception ex)
             {
                  txtDegreeFahrenheit.Text = "Invalid input";
             }
        }

sam,a Windows store app developer, wants to create a simple app for children. He expects the interface of the piano to look like the one shown in following figure.

2. sam,a Windows store app developer, wants to create a simple app for children. He expects
   the interface of the piano to look like the one shown in following figure.

Ans:=(XAML Code)

 
      <Grid.RowDefinitions>
        <RowDefinition height="400"></RowDefinition>
        <RowDefinition height=""></RowDefinition>
      <Grid Grid.Column="0" margin="0,280,0,0" Grid.RowSpan="3">
       <Grid X:Name="grdChordButtons" Tapped="grdChordButtons_Tapped">
           <Grid.RowDefinitions>
             <RowDefinition></RowDefinition>
             </Grid.RowDefinitions>
             <Grid.ColumnDefinitions>
             <ColumnDefinition></ColumnDefinition>
             <ColumnDefinition></ColumnDefinition>
             <ColumnDefinition></ColumnDefinition>
             <ColumnDefinition></ColumnDefinition>
             <ColumnDefinition></ColumnDefinition>
             <ColumnDefinition></ColumnDefinition>
             <ColumnDefinition></ColumnDefinition>
             <ColumnDefinition></ColumnDefinition>
             </Grid.ColumnDefinitions>
             <Button Background="White" x:Name="C" fontSize="60" Grid.Column="0" HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
             <Button Background="White" x:Name="D" fontSize="60" Grid.Column="1"HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
             <Button Background="White" x:Name="E" fontSize="60" Grid.Column="2"HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
             <Button Background="White" x:Name="F" fontSize="60" Grid.Column="3"HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
             <Button Background="White" x:Name="G" fontSize="60" Grid.Column="4"HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
             <Button Background="White" x:Name="A" fontSize="60" Grid.Column="5"HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
             <Button Background="White" x:Name="B" fontSize="60" Grid.Column="6"HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
             <Button Background="White" x:Name="C" fontSize="60" Grid.Column="7"HorizontalAlignment="Stretch" VerticalAlignment="Stretch" Grid.Row="0"></Button>
         </Grid>
         <Grid x:Name="grdBlackChordButtons" Height="320" VerticalAlignment="Top" Margin="95,0,86,0" Tapped="grdBlackChordButtons_Tapped">
         <Grid.RowDefinitions>
                <ColumnDefinition></ColumnDefinition>
                <ColumnDefinition></ColumnDefinition>





(CCS Code)

    privete void grdChordButtons_Tapped(object sender, TappedRoutedEventArgs e)
    {
       UIElement controls = e.OriginalSource as UIEement;
       Button bttnChord = null;
       While (controls != null && controls !=sender as UIEement)
    }
        if(controls is Button)
         {
             bttnChord = controls as Button;
             break;
         }
         controls = VisualTreeHelper.GetParent(controls) as UIEement;
    }
     if (bttnChord !=null)
    {
     PianoChordPlayer.Source new Uri("as-appx:///Assets/" + bttnChord.Name + "wav");
     PianoChordPlayer.Play();
    }
}

privete void grdChordButtons_Tapped(object sender, TappedRoutedEventArgs e)
    {
       UIElement controls = e.OriginalSource as UIEement;
       Button bttnChord = null;
       While (controls != null && controls !=sender as UIEement)
    }
        if(controls is Button)
         {
             bttnChord = controls as Button;
             break;
         }
         controls = VisualTreeHelper.GetParent(controls) as UIEement;
    }
     if (bttnChord !=null)
    {
     string bttnName = bttnChord.Name;
     PianoChordPlayer.Source new Uri("as-appx:///Assets/" + bttnChord.Name + "wav");
     PianoChordPlayer.Play();
    }

John is developing a windows store Store app for viewing images. He has created the UI of the app, as shown in the following figure.

1. John is developing a windows store Store app for viewing images. He has created the UI of the app,
   as shown in the following figure.






Ans:= (XAML Code)


     <ViewBox>
    <Grid Background="{StaticResource ApplicationPageBackgroundThemeBrush}" VerticalAlignment="Center" HorizontalAlignment="Center">
<Button Content="Image List" HorizontalAlignment="Left" Mergin="10,10,0,0" BorderThickness="0" FontSize="24" Backround="Blue" VerticalAlignment="Top" Width="315"/>
                <ListBox N:Name="IstboxPictureList" HorizontalAlignment="Left" Height="697" Margin="10,61,0,0"  VerticalAlignment="Top" width="315" SelectionChanged="IstboxPictureList_SelectionChanged"/>

                <Button Content="Image Preview" HorizontalAlignment="Left" Mergin="346,10,0,0" BorderThickness="0" FontSize="24" Background="Blue"  VerticalAlignment="Top" Width="1010"/>
            <Button IsEnabled="False" HorizontalAlignment="Left" Height="697" Margin="346,10,0,0"  VerticalAlignment="Top" Width="1010" />
        <Image x:Name="imgPreview" Source="Assets/1.jpg"  Stretch="Uniform"></Image>
        </Button>
    </ViewBox>



(CCS Code)


using Windows.UI.Xaml.Media.Imaging;


/// <summary>
    /// An empty page that can be used on its own or navigated to within a Frame.
    /// </summary>
    public sealed partial class MainPage : Page
    {
        public MainPage()
        {
            this.InitializeComponent();
        }

private void InitializeComponent()
{
  throw new NotImplementedException();
}

        public void loadPictureList();
    {
        for (int i=1; i < 9; i++)
    {
        IstboxPictureList.SelectedIndexz = 0;
    }
    }
   ///////////////     private void IstboxPictureList_selectionChanged(object, SelectionChangedEventArgs);
    {
        imgPreview.Source = new BitmapImage("as-appx:///Assets/"+lst)
    }

        /// <summary>
        /// Invoked when this page is about to be displayed in a Frame.
        /// </summary>
        /// <param name="e">Event data that describes how this page was reached.  The Parameter
        /// property is typically used to configure the page.</param>
        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
loadPictureList();
        }
    }
}



Philip has been assigned the task to develop a gaming app that asks random questions to the user. In addition, the app displays a grid containing letters, as shown in the following figure.

Philip has been assigned the task to develop a gaming app that asks random questions to the
user. In addition, the app displays a grid containing letters, as shown in the following figure.
The Expected UI of the Gaming App
To mark an answer, the user needs to click the alphabets that form the answer, and then click the
SUBMIT button.
Before proceeding with the development of the fully functional app, Philip wants to get an approval
for the UI of the app. Therefore, he plans to create the UI of the app.
Help Philip to develop the expected UI of the app.

Solution:

<TextBlock x:Name="txtblkResult" HorizontalAlignment="Center" FontSize="50"/>
<ToggleButton Content="K" Width="173" FontSize="60" Background="Blue" BorderThick/>
<ToggleButton Content="I" Width="173" FontSize="60" Background="Blue" BorderThick/>
<ToggleButton Content="T" Width="173" FontSize="60" Background="Blue" BorderThick/>
<ToggleButton Content="E" Width="173" FontSize="60" Background="Blue" BorderThick/>
<ToggleButton Content="G" Width="173" FontSize="60" Background="Blue" BorderThick/>
<ToggleButton Content="A" Width="173" FontSize="60" Background="Blue" BorderThick/>
<ToggleButton Content="N" Width="173" FontSize="60" Background="Blue" BorderThick/>
<ToggleButton Content="L" Width="173" FontSize="60" Background="Blue" BorderThick/>
<ToggleButton Content="S" Width="173" FontSize="60" Background="Blue" BorderThick/>
<ToggleButton Content="M" Width="173" FontSize="60" Background="Blue" BorderThick/>
<ToggleButton Content="B" Width="173" FontSize="60" Background="Blue" BorderThick/>
<ToggleButton Content="S" Width="173" FontSize="60" Background="Blue" BorderThick/>
<ToggleButton Content="S" Width="173" FontSize="60" Background="Blue" BorderThick/>
<ToggleButton Content="C" Width="173" FontSize="60" Background="Blue" BorderThick/>
<ToggleButton Content="Y" Width="173" FontSize="60" Background="Blue" BorderThick/>
<Button Content="SUBMIT" Width="529" FontSize="60" Background="BlueViolet"/>