Windows Phone - Hello World!

.Hello World App Running in Windows Phone Emulator

WP Hello World!

These are the steps I took to get a simple Hello World application created for Windows Phone OS 7.1.

  1. Open Visual Studio 2010.
  2. Click on New Project.
  3. In New Project window:
    • Select Silverlight for Windows Phone. See Microsoft Silverlight for more info.
    • Select Windows Phone Application Visual C#.
    • Enter Project name HelloWorld.
    • Click the OK button.
  4. In the New Windows Phone Application diaglog, select Windows Phone OS 7.1, then click OK.
,Visual Studio 2010 Windows Phone Project
  1. In Design View, select on the Title and change the text to HELLO WORLD APP.
  2. In Design View, select on the Page Title and change the text to page one. (Metro Design Language conventions uses lower case for page names).
  3. Drag and drop a TextBlock control from the tool kit and modify the text attributes as desired.
  4. From the drop-down list, set the emulator to Windows Phone Emulator - 512 M.

MainPage.xaml in Design View

  1. The screen capture below shows how my MainPage.xaml looked in the design view.
,Design View of Application
  1. Press F5 and the application will run in the emulator.
  2. When finished viewing the application, you do not neet to close the emulator. You can click the Back button and return to visual studio. This will let the emulator redeploy faster. The screen capture below shows the application running in the Windows Phone emulator.
.Application Running in Emulator

Several files were generated for this project:

  1. App.xaml / App.xaml.cs - Defines the entry point of the application, initializes application-scoped resources, and displays the application user interface.
  2. MainPage.xaml / MainPage.xaml.cs - Defines a page with the user interface of the application.
  3. AppManifest.xml - An application manifest file required to generate the application package.
  4. WMAppManifest.xml - A manifest file that includes specific metadata related to a Windows Phone Silverlight application, including specific features.
  5. AssemblyInfo.cs - Contains the name and version metadata that is embedded into the generated assembly.



    <!--Application Resources-->

        <!--Required object that handles lifetime events for the application-->
            Launching="Application_Launching" Closing="Application_Closing"
            Activated="Application_Activated" Deactivated="Application_Deactivated"/>



using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Navigation;
using System.Windows.Shapes;
using Microsoft.Phone.Controls;
using Microsoft.Phone.Shell;

namespace HelloWorld
    public partial class App : Application
        /// <summary>
        /// Provides easy access to the root frame of the Phone Application.
        /// </summary>
        /// <returns>The root frame of the Phone Application.</returns>
        public PhoneApplicationFrame RootFrame { get; private set; }

        /// <summary>
        /// Constructor for the Application object.
        /// </summary>
        public App()
            // Global handler for uncaught exceptions.
            UnhandledException += Application_UnhandledException;

            // Standard Silverlight initialization

            // Phone-specific initialization

            // Show graphics profiling information while debugging.
            if (System.Diagnostics.Debugger.IsAttached)
                // Display the current frame rate counters.
                //Application.Current.Host.Settings.EnableFrameRateCounter = true;

                // Show the areas of the app that are being redrawn in each frame.
                //Application.Current.Host.Settings.EnableRedrawRegions = true;

                // Enable non-production analysis visualization mode,
                // which shows areas of a page that are handed off to GPU with a colored overlay.
                //Application.Current.Host.Settings.EnableCacheVisualization = true;

                // Disable the application idle detection by setting the UserIdleDetectionMode property of the
                // application's PhoneApplicationService object to Disabled.
                // Caution:- Use this under debug mode only. Application that disables user idle detection will continue to run
                // and consume battery power when the user is not using the phone.
                PhoneApplicationService.Current.UserIdleDetectionMode = IdleDetectionMode.Disabled;


        // Code to execute when the application is launching (eg, from Start)
        // This code will not execute when the application is reactivated
        private void Application_Launching(object sender, LaunchingEventArgs e)

        // Code to execute when the application is activated (brought to foreground)
        // This code will not execute when the application is first launched
        private void Application_Activated(object sender, ActivatedEventArgs e)

        // Code to execute when the application is deactivated (sent to background)
        // This code will not execute when the application is closing
        private void Application_Deactivated(object sender, DeactivatedEventArgs e)

        // Code to execute when the application is closing (eg, user hit Back)
        // This code will not execute when the application is deactivated
        private void Application_Closing(object sender, ClosingEventArgs e)

        // Code to execute if a navigation fails
        private void RootFrame_NavigationFailed(object sender, NavigationFailedEventArgs e)
            if (System.Diagnostics.Debugger.IsAttached)
                // A navigation has failed; break into the debugger

        // Code to execute on Unhandled Exceptions
        private void Application_UnhandledException(object sender, ApplicationUnhandledExceptionEventArgs e)
            if (System.Diagnostics.Debugger.IsAttached)
                // An unhandled exception has occurred; break into the debugger

        #region Phone application initialization

        // Avoid double-initialization
        private bool phoneApplicationInitialized = false;

        // Do not add any additional code to this method
        private void InitializePhoneApplication()
            if (phoneApplicationInitialized)

            // Create the frame but don't set it as RootVisual yet; this allows the splash
            // screen to remain active until the application is ready to render.
            RootFrame = new PhoneApplicationFrame();
            RootFrame.Navigated += CompleteInitializePhoneApplication;

            // Handle navigation failures
            RootFrame.NavigationFailed += RootFrame_NavigationFailed;

            // Ensure we don't initialize again
            phoneApplicationInitialized = true;

        // Do not add any additional code to this method
        private void CompleteInitializePhoneApplication(object sender, NavigationEventArgs e)
            // Set the root visual to allow the application to render
            if (RootVisual != RootFrame)
                RootVisual = RootFrame;

            // Remove this handler since it is no longer needed
            RootFrame.Navigated -= CompleteInitializePhoneApplication;



<phone:PhoneApplicationPage x:Class="HelloWorld.MainPage"
                            FontFamily="{StaticResource PhoneFontFamilyNormal}"
                            FontSize="{StaticResource PhoneFontSizeNormal}"
                            Foreground="{StaticResource PhoneForegroundBrush}"

    <!--LayoutRoot is the root grid where all page content is placed-->
    <Grid x:Name="LayoutRoot"
            <RowDefinition Height="Auto" />
            <RowDefinition Height="*" />

        <!--TitlePanel contains the name of the application and page title-->
        <StackPanel x:Name="TitlePanel"
            <TextBlock x:Name="ApplicationTitle"
                       Text="HELLO WORLD APP"
                       Style="{StaticResource PhoneTextNormalStyle}" />
            <TextBlock x:Name="PageTitle"
                       Text="page one"
                       Style="{StaticResource PhoneTextTitle1Style}" />

        <!--ContentPanel - place additional content here-->
        <Grid x:Name="ContentPanel"
            <TextBox Height="109"
                     Text="Hello World!"
                     BorderThickness="0" />

    <!--Sample code showing usage of ApplicationBar-->
<shell:ApplicationBar IsVisible="True" IsMenuEnabled="True">
<shell:ApplicationBarIconButton IconUri="/Images/appbar_button1.png" Text="Button 1"/>
<shell:ApplicationBarIconButton IconUri="/Images/appbar_button2.png" Text="Button 2"/>
<shell:ApplicationBarMenuItem Text="MenuItem 1"/>
<shell:ApplicationBarMenuItem Text="MenuItem 2"/>



using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;
using Microsoft.Phone.Controls;

namespace HelloWorld
    public partial class MainPage : PhoneApplicationPage
        // Constructor
        public MainPage()


<?xml version="1.0" encoding="utf-8"?>

<Deployment xmlns="" AppPlatformVersion="7.1">
  <App xmlns="" ProductID="{fb09f9d6-7db4-4bde-a52b-c96c61315889}" Title="HelloWorld" RuntimeType="Silverlight"
       Version="" Genre="apps.normal"  Author="HelloWorld author" Description="Sample description" Publisher="HelloWorld">
    <IconPath IsRelative="true" IsResource="false">ApplicationIcon.png</IconPath>
      <Capability Name="ID_CAP_GAMERSERVICES"/>
      <Capability Name="ID_CAP_IDENTITY_DEVICE"/>
      <Capability Name="ID_CAP_IDENTITY_USER"/>
      <Capability Name="ID_CAP_LOCATION"/>
      <Capability Name="ID_CAP_MEDIALIB"/>
      <Capability Name="ID_CAP_MICROPHONE"/>
      <Capability Name="ID_CAP_NETWORKING"/>
      <Capability Name="ID_CAP_PHONEDIALER"/>
      <Capability Name="ID_CAP_PUSH_NOTIFICATION"/>
      <Capability Name="ID_CAP_SENSORS"/>
      <Capability Name="ID_CAP_WEBBROWSERCOMPONENT"/>
      <Capability Name="ID_CAP_ISV_CAMERA"/>
      <Capability Name="ID_CAP_CONTACTS"/>
      <Capability Name="ID_CAP_APPOINTMENTS"/>
      <DefaultTask  Name ="_default" NavigationPage="MainPage.xaml"/>
      <PrimaryToken TokenID="HelloWorldToken" TaskName="_default">
          <BackgroundImageURI IsRelative="true" IsResource="false">Background.png</BackgroundImageURI>


using System.Reflection;
using System.Runtime.CompilerServices;
using System.Runtime.InteropServices;
using System.Resources;

// General Information about an assembly is controlled through the following
// set of attributes. Change these attribute values to modify the information
// associated with an assembly.
[assembly: AssemblyTitle("HelloWorld")]
[assembly: AssemblyDescription("")]
[assembly: AssemblyConfiguration("")]
[assembly: AssemblyCompany("")]
[assembly: AssemblyProduct("HelloWorld")]
[assembly: AssemblyCopyright("Copyright ©  2013")]
[assembly: AssemblyTrademark("")]
[assembly: AssemblyCulture("")]

// Setting ComVisible to false makes the types in this assembly not visible
// to COM components.  If you need to access a type in this assembly from
// COM, set the ComVisible attribute to true on that type.
[assembly: ComVisible(false)]

// The following GUID is for the ID of the typelib if this project is exposed to COM
[assembly: Guid("8719899a-0ce3-46d3-bfbd-d767dad00abf")]

// Version information for an assembly consists of the following four values:
//      Major Version
//      Minor Version
//      Build Number
//      Revision
// You can specify all the values or you can default the Revision and Build Numbers
// by using the '*' as shown below:
[assembly: AssemblyVersion("")]
[assembly: AssemblyFileVersion("")]
[assembly: NeutralResourcesLanguageAttribute("en-US")]