Here, in this application, I will show you how to develop Windows store apps in Windows 8 and how to test them using the local machine and a simulator. To create a project, open your Visual Studio and create a new project of the type shown below:


Choose a blank app(XAML) and press the OK button and it will add the following things in the Solution Explorer.



Here, I am briefly describing everything added in this Solution Explorer.
App.Xaml

When your Application starts, first the App.xaml file is loaded and it contains all the app-level resources and settings. This file is like Global.asax file in ASP.NET, which is first to run. The App.Xaml will look as shown below:
  1. <Application
  2. x:Class="Myapp.App"
  3. xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  4. xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
  5. xmlns:local="using:Myapp">
  7. </Application>
Assets- This is a folder which mainly contains the splash screen and a different logo used in the Application.

MainPage.xaml- It is similar to a .aspx page or a view in ASP.NET, where you have to design your UI. It uses XAML to design the UI.
MainPage.xaml.cs- This is similar to aspx.cs page in ASP.NET, where the main logic will be written.
Myapp_TemporaryKey.pfx- This is the certificate for your Windows app. When you first create a new project in Visual Studio, it will create a new test certificate automatically.
Now, I designed my UI, as shown below:

Here, the source code(XAML) for this design is as follows:
  1. <Grid Background="BlanchedAlmond" Width="963" Height="396" >
  2. <StackPanel Margin="151,99,0,0">
  3. <TextBlock Text=" Windows Apps Tutorial Part-1" FontSize="36" Foreground="Red" Margin="0,0,24,0" />
  4. <StackPanel Orientation="Horizontal" Margin="0,20,0,20">
  5. <TextBox Name="txt_name" Width="421" HorizontalAlignment="Left" Height="46" FontSize="24" Background="DeepPink"/>
  6. <Button Content="READ" Height="50" Background="Black" Click="Button_Click"/>
  7. </StackPanel>
  9. </StackPanel>
  10. </Grid>
  11. ;/Page>
On the button, click and write the code, given below, to open a message box to show the text entered in the textbox by the user.
  1. private void Button_Click(object sender, RoutedEventArgs e)
  2. {
  4. //Creating instance for the MessageDialog Class
  6. MessageDialog msgbox = new MessageDialog("Good Morning" + " "+ txt_name.Text);
  8. msgbox.ShowAsync();
  10. }
W can check in two ways i.e- Local Device and in Simulator. Let's check the result in Local Device and Simulator. Press F5 to run the project and check the output.



Enter a name in the textbox and click the Read button.



Click the Read button and it will show the message box, as depicted below:



Here, the output comes as expected.

Let's check with the simulator.

Choose the simulator option as follows.

Now, run the project.

Now, check the result by putting a name on the textbox.

In this way, we can check the app in the simulator. This tutorial is basic, as far as Windows store apps are concerned. I hope this will help you.