Kamal Sharma

Windows App Lab@Home 5

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, 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 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 Piano

{

/// <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 grdChordButtons_Tapped(ojject sender, TappedRowtedEventArgs e)

{

UIelement controls = e.OriginalSource as UIElement;

Button bttnChord = null;

while(controls != null && controls != sender as UIElement)

{

if (controls isButton)

{

bttnChord = controls as Button;

Break;

}

if (bttnChord != null)

{

pianoChordPlayer.Source = New Uri("ms-appx:///Assets/"+bttnChord.".wav");

pianoChordPlayer.Play();

}

/// <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)

{

}

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();

}

William works as a Windows Store app developer at WegaApps Co. He has a new assignment for creating a basic paint app.

William works as a Windows Store app developer at WegaApps Co. He has a new assignment for
creating a basic paint app.
The paint app should have the following features:
Paint area: A full screen area for drawing lines and shapes.
Drawing toolbar: A toolbar that allows drawing an ellipse, a rectangle, and a straight line. In
addition, the toolbar should contain a button for clearing the screen.
Color toolbar: A toolbar that allows selecting a color for stroke and fill of the shapes with the
help of the various color buttons. In addition, a toggle button allows to switch between the stroke
and fill colors. To select a stroke/fill color, first the toggle button needs to be clicked, and then a
color needs to be selected by clicking a color. Further, the app allows the user to change the
stroke thickness from 1 to 100.
Both the toolbars should be displayed to the user on demand.
The interface of the app should look like the one shown in the following figure.
The Expected Interface of the App
Help William accomplish the preceding task.

Solution;

XAML Code:

<AppBar n:Name="appBarColors" HorizontalAlignment="Right" Background="Black" Width="1250">
<GridView SelectionMode="None" Tapped="1boxColors_Tapped" x:Name="1boxColors" HorizontalAlignment="Center" Width="1250">
VerticalAlignment="Center" Background="Black" ScrollViewer.HorizontalScrollMode="Auto"
ScrollViewer.VerticalScrollMode="Auto" ScrollViewer.HorizontalScrollBarVisibility="Auto"
ScrollViewer.VerticalScrollBarVisibility="Auto" Margin="10,0,7,210"

<Button Background="Aqua" Heigh="300" Width="300"></Button>
<Button Background="Black" Heigh="300" Width="300"></Button>
<Button Background="Blue" Heigh="300" Width="300"></Button>
<Button Background="Chocolate" Heigh="300" Width="300"></Button>
<Button Background="Crimson" Heigh="300" Width="300"></Button>
<Button Background="Cyan" Heigh="300" Width="300"></Button>
<Button Background="DarkGreen" Heigh="300" Width="300"></Button>
<Button Background="DarkMagenge" Heigh="300" Width="300"></Button>
<Button Background="DarkOrange" Heigh="300" Width="300"></Button>
<Button Background="DarkRad" Heigh="300" Width="300"></Button>
<Button Background="ForestGreen" Heigh="300" Width="300"></Button>
<Button Background="Fuchsia" Heigh="300" Width="300"></Button>
<Button Background="Gold" Heigh="300" Width="300"></Button>
<Button Background="Gray" Heigh="300" Width="300"></Button>
<Button Background="Green" Heigh="300" Width="300"></Button>
<Button Background="GreenYellow" Heigh="300" Width="300"></Button>
<Button Background="HotPink" Heigh="300" Width="300"></Button>
<Button Background="Indigo" Heigh="300" Width="300"></Button>
<Button Background="LavenderBlush" Heigh="300" Width="300"></Button>
<Button Background="LightBlue" Heigh="300" Width="300"></Button>
<Button Background="LightPink" Heigh="300" Width="300"></Button>
<Button Background="Lime" Heigh="300" Width="300"></Button>
<Button Background="LimeGreen" Heigh="300" Width="300"></Button>
<Button Background="Magenta" Heigh="300" Width="300"></Button>
<Button Background="Maroon" Heigh="300" Width="300"></Button>
<Button Background="OrangeRed" Heigh="300" Width="300"></Button>
<Button Background="Pink" Heigh="300" Width="300"></Button>
<Button Background="Purple" Heigh="300" Width="300"></Button>
<Button Background="Red" Heigh="300" Width="300"></Button>
<Button Background="RosyBrown" Heigh="300" Width="300"></Button>
<Button Background="RoyalBlue" Heigh="300" Width="300"></Button>
<Button Background="SandyBrown" Heigh="300" Width="300"></Button>
<Button Background="Silver" Heigh="300" Width="300"></Button>
<Button Background="SkyBlue" Heigh="300" Width="300"></Button>
<Button Background="Tomato" Heigh="300" Width="300"></Button>
<Button Background="Violet" Heigh="300" Width="300"></Button>
<Button Background="White" Heigh="300" Width="300"></Button>
<Button Background="Yellow" Heigh="300" Width="300"></Button>
<Button Background="YellowGreen" Heigh="300" Width="300"></Button>

<ToggleButton Background="Blue" x:Name="tglBtnStrokeFill" Content="Stroke" FontSize="70" Tapped="tglBtnStrokeFill_Tapped" Wigth="300" Height="300"/>
<Slider x:Name="sldrstrokeThickness" Orientation="Vertical" Minimum="1" Maximum="100" Height="250" ValueChanged="sldrStrokeThickness_ValueChanged"/>
<TextBlock Text="Thickness" FontSize="70" Height="300" Width="300"/>
</GridView>
</AppBar>

========================================================================

CS Code

privare void 1boxColors_Tapped(object sender, TappedRoutedEventArgs e)
{
UIElement controls = e.OriginalSource as UIElement;
while (controls != null && controls !=sender as UIElement)
{
if (controls is Button)
{
Button bttn = controls as Button;
if (tglBtnStrokeFill.Content.ToString() == "Stroke")
strokeColor = (SolidColorBrush) bttn.Background;
else
fillColor = (SolidColorBrush)bttn.Background;
break;
}
controls = VisulTreeHelper.GetParent(controls) as UIElement;
}
}
private void tglBtnStrokeFill_Tapped(object sender, TappedRoutedEventArgs e)
{
if (tglBtnStrokeFill.Content.ToString() == "Stroke")
{
tglBtnStrokeFill.Content = "Fill";
}
else
{
tglBtnStrokeFill.Content = "Stroke";
}
}

Windows App Lab@Home 3

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.

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.

Solution;

(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$";
}
}

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.

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.

Solution;

(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();
}
}

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.

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.

Solution;

(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";
}
}

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.

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.

Solution;

(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();
}
}
}

Windows App Lab@Home 2

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"/>

Susan has recently joined as a UI designer at InfoPath Solutions. She has been allocated a task to create an app.

Susan has recently joined as a UI designer at InfoPath Solutions. She has been allocated a task to
create an app. This app should display an image on the interface and allow the user to zoom in or
zoom out the image with the help of a slider. When the image is zoomed in, it should be displayed,
as shown in the following figure.
The Zoomed In View of the Image
However, when the image is zoomed out, it should be displayed, as shown in the following figure.
The Zoomed Out View of the Image
As an initial step, Susan has to develop the UI of the app. Help Susan to accomplish the task.

Solution;
XAML CODE

<Image x:Name="imgContainter" NorizontalAlignment="Center" Meight="100" VerticalAlignmen/>

<slider x:Name="sldr" HorizontalAlignment="Left" Margin="25,695,0,0" VerticalAlignment />

Kristin is working as a UI Designer at GlobalTech Inc. She has been assigned the task to design the UI of a Calculator app, which should appear, as shown in the following figure.

Kristin is working as a UI Designer at GlobalTech Inc. She has been assigned the task to design
the UI of a Calculator app, which should appear, as shown in the following figure.
The Expected UI of the Calculator App
Help Kristin to accomplish the preceding task.

Solution;

XAML CODE

<Button Content="7" Width="173" FontSize="60" Background="Blue" BorderThick/>
<Button Content="8" Width="173" FontSize="60" Background="Blue" BorderThick/>
<Button Content="9" Width="173" FontSize="60" Background="Blue" BorderThick/>

<Button Content="4" Width="173" FontSize="60" Background="Blue" BorderThick/>
<Button Content="5" Width="173" FontSize="60" Background="Blue" BorderThick/>
<Button Content="6" Width="173" FontSize="60" Background="Blue" BorderThick/>

<Button Content="1" Width="173" FontSize="60" Background="Blue" BorderThick/>
<Button Content="2" Width="173" FontSize="60" Background="Blue" BorderThick/>
<Button Content="3" Width="173" FontSize="60" Background="Blue" BorderThick/>

<Button Content="." Width="173" FontSize="60" Background="Blue" BorderThick/>
<Button Content="0" Width="173" FontSize="60" Background="Blue" BorderThick/>
<Button Content="Clear" Width="173" FontSize="60" Background="Blue" BorderThick/>

<Button Content="+" Width="173" FontSize="60" Background="Blue" BorderThick/>
<Button Content="-" Width="173" FontSize="60" Background="Blue" BorderThick/>
<Button Content="*" Width="173" FontSize="60" Background="Blue" BorderThick/>
<Button Content="/" Width="173" FontSize="60" Background="Blue" BorderThick/>
<Button Content="?" Width="173" FontSize="60" Background="Blue" BorderThick/>
<Button Content="1/x" Width="173" FontSize="60" Background="Blue" BorderThick/>
<Button Content="+_" Width="173" FontSize="60" Background="Blue" BorderThick/>
<Button Content="=" Width="173" FontSize="60" Background="Blue" BorderThick/>

<TextBlock x:Name="txtlkResult" HorizontalAlignment="Center" FontSize="80"/>

Parker has recently started learning Windows Store apps development. He has learned creating UI of apps by adding UI elements.

Parker has recently started learning Windows Store apps development. He has learned creating
UI of apps by adding UI elements. Now, he has been assigned a task to develop the UI of the
Registration page. The UI of the app will contain the following fields:
User name
First name
Last name
Password
Confirm password
Date of birth
Gender
Receive notifications through email
Accept terms and conditions
In addition, the Register button should be provided on the interface. After adding the UI elements,
the UI should appear, as shown in the following figure.
The Expected UI of the Registration Page
Help Parker to accomplish the preceding task.

Solution;

XAML FILE

<TextBlock HorizontalAignment="Left" Margin="96,103,0,0" Text="User Name" VerticalAlignment/>
<TextBlock HorizontalAignment="Left" Margin="96,103,0,0" Text="First Name" VerticalAlignment/>
<TextBlock HorizontalAignment="Left" Margin="96,103,0,0" Text="Last Name"VerticalAlignment/>
<TextBlock HorizontalAignment="Left" Margin="96,103,0,0" Text="Password" VerticalAlignment/>
<TextBlock HorizontalAignment="Left" Margin="96,103,0,0" Text="Confirm Password" VerticalAlignment/>
<TextBlock HorizontalAignment="Left" Margin="96,103,0,0" Text="Date of Birth" VerticalAlignment/>
<TextBlock HorizontalAignment="Left" Margin="96,103,0,0" Text="Gender" VerticalAlignmen/>
<TextBlock HorizontalAignment="Left" Margin="96,103,0,0" Text="Receive notifications through email" VerticalAlignment/>
<TextBlock HorizontalAignment="Left" Margin="96,103,0,0" Text="Accept terms and conditions" VerticalAlignment/>
<PasswordBox Margin="585,303,0,0"HorizontalAlignment="Left"VerticalAlignment/>
<PasswordBox Margin="585,303,0,0"HorizontalAlignment="Left"VerticalAlignment/>
<ComboBox HorizontaiAlignment="Left" Margin="585,353,0,0" VerticalAlignment />
<ComboBox HorizontaiAlignment="Left" Margin="762,353,0,0" VerticalAlignment/>
<ComboBox HorizontaiAlignment="Left" Margin="939,353,0,0" VerticalAlignment/>
<ToggleSwitch HorizontailAlignment="Left" Margin="585,441,0,0"VerticalAlignment/>
<CheckBox HorizontaiAlignment="Left" margin="585,503,0,0"VerticalAlignment/>
<RadioButton content="Male" HorizontalAlignment="Left" margin="585,403,0,0" verticalAlignment/>

<RadioButton content="Female" HorizontalAlignment="Left" margin="681,553,0,0" verticalAlignment/>

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Windows App Lab@Home 5

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

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

William works as a Windows Store app developer at WegaApps Co. He has a new assignment for creating a basic paint app.

Windows App Lab@Home 3

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.

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.

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.

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.

Windows App Lab@Home 2

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.

Susan has recently joined as a UI designer at InfoPath Solutions. She has been allocated a task to create an app.

Kristin is working as a UI Designer at GlobalTech Inc. She has been assigned the task to design the UI of a Calculator app, which should appear, as shown in the following figure.

Parker has recently started learning Windows Store apps development. He has learned creating UI of apps by adding UI elements.