Introduction
In this article we are going to see how to
create a Silverlight Windows Phone 7 Application using the Visual Studio IDE. In
our earlier article we have seen the software and the hardware requirement in
order to start develop a windows phone application. Here in this article we will
create a Hello World Application and try to run it in the Windows Phone 7
Emulator to check the working model of the application. Let us jump start to see
the step by step process on how to design the application using the Visual
Studio 2010 IDE.
Steps
As we discussed in our earlier article, after
installing the Windows Phone 7 SDK, we can see the new template options
available with the Visual Studio 2010. The new templates are one for creating
Silverlight for Windows Phone Application and other one is for
XNA Game Studio 4.0 which will help us to develop respective
applications as per the requirement as shown in the screen below.
In this series we are going to concentrate more
on the Silverlight for Windows Phone application development for the enterprise
and commercial application builders. Also we will see how to create a XNA Game
studio application as well so that it will give some idea on the difference
between selecting the appropriate project. Let us create a Silverlight for
Windows Phone 7 Hello world application, to start with first select the Windows
Phone Application and provide the decent name to the project as shown in the
screen below.
Clicking on OK will create the application, we
can see a popup window asking to select the version of the Windows Phone 7 OS.
We will go with selecting the latest platform, Windows Phone OS 7.1 as shown in
the screen below.
Clicking on OK will open the project in Visual
Studio 2010 IDE, we can see the windows phone 7 interface designer view and the
XAML code view as shown in the screen below.
Now drag and drop the controls from the toolbox
to get some user input and show output Hello World. Also alternatively we can
write the XAML code to get the controls based on the requirement. Once we have
the controls on to the designer our screen looks like below.
The XAML code for the above design is given in
the below code block to get fair idea on the type of control used and the
properties assigned for each control to get a better user interface. Just we can
copy and paste this below XAML code on to any Windows Phone 7 Page to get this
design. Here we have added 4 Text block, 2 text box for inputs and a button
control to trigger some event. Also if you have noticed we have the header with
message F5DEBUG APPLICATION in upper case which is the standard we should
consider while developing our application.
XAML Code
<Grid
x:Name="LayoutRoot"
Background="Transparent">
<Grid.RowDefinitions>
<RowDefinition
Height="Auto"/>
<RowDefinition
Height="*"/>
</Grid.RowDefinitions>
<!--TitlePanel
contains the name of the application and page title-->
<StackPanel
x:Name="TitlePanel"
Grid.Row="0"
Margin="12,17,0,28">
<TextBlock
x:Name="ApplicationTitle"
Text="F5DEBUG
APPLICATION"
Style="{StaticResource
PhoneTextNormalStyle}"/>
<TextBlock
x:Name="PageTitle"
Text="F5Debug"
Margin="9,-7,0,0"
Style="{StaticResource
PhoneTextTitle1Style}"/>
</StackPanel>
<!--ContentPanel
- place additional content here-->
<Grid
x:Name="ContentPanel"
Grid.Row="1"
Margin="12,0,12,0">
<TextBlock
Height="30"
HorizontalAlignment="Left"
Margin="25,106,0,0"
Name="textBlock1"
Text="First
Name"
VerticalAlignment="Top"
/>
<TextBox
Height="72"
HorizontalAlignment="Left"
Margin="140,84,0,0"
Name="textBox1"
Text=""
VerticalAlignment="Top"
Width="310"
/>
<TextBlock
Height="30"
HorizontalAlignment="Left"
Margin="25,167,0,0"
Name="textBlock2"
Text="Last
Name"
VerticalAlignment="Top"
/>
<TextBox
Height="72"
HorizontalAlignment="Left"
Margin="140,145,0,0"
Name="textBox2"
Text=""
VerticalAlignment="Top"
Width="310"
/>
<Button
Content="Button"
Height="72"
HorizontalAlignment="Left"
Margin="39,241,0,0"
Name="SUBMIT"
VerticalAlignment="Top"
Width="377"
Click="SUBMIT_Click"
/>
<TextBlock
Height="51"
HorizontalAlignment="Left"
Margin="25,354,0,0"
Name="textBlock3"
Text=""
VerticalAlignment="Top"
Width="413"
/>
<TextBlock
Height="50"
HorizontalAlignment="Left"
Margin="159,28,0,0"
Name="textBlock4"
Text="HELLO
WORLD"
VerticalAlignment="Top"
Width="173"
/>
</Grid>
</Grid>
Now we are done with the design, now go to the
code behind Submit button Event and write the below code which get the user
input from the 2 text boxes (First Name and Last Name ) to provide a welcome
message to the user as shown in the code behind.
C# Code
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
F5debugWp7HelloWorld
{
public
partial class
MainPage : PhoneApplicationPage
{
// Constructor
public MainPage()
{
InitializeComponent();
}
private
void SUBMIT_Click(object sender,
RoutedEventArgs e)
{
string strFname =
textBox1.Text.ToString();
string strLname =
textBox2.Text.ToString();
textBlock3.Text = " Welcome & quot; +strFname.ToString()
+ " " +strLname.ToString();
}
}
}
Now build the application and execute the
project to check the output by pressing F5 from the keyboard directly or by
pressing the play button from the IDE tool bar and we can see the output in the
Windows Phone 7 Emulator as shown in the screen below.
Note
- We need to check if the target to run the application is pointed to Windows
Phone Emulator and not Windows Phone Device.
Now we can enter the test inputs and click on
Submit button to get the welcome message as shown in the screen below.
Conclusion
So in this article we have seen how to create a
Hello world application in Windows Phone 7 application for Silverlight and we
also seen how to use the controls with the designer.