IntroductionFirst before we get to start working with Color Picker, we need to download the Coding4Fun Toolkit from http://coding4fun.codeplex.com/. Later add Coding4Fun.Phone.Controls.dll as a reference for our newly created project.Today, in this article let's dicuss another new concept related to Windows Phone 7, whereby communicating with WCF Service to perform some operation.Question: What is a Color Picker?In simple terms "It enables user to choose specific color from color space with slider. Provides rich UI based color chooser ".Let's get this started off now!!!Step 1: The complete code for the IService1.cs looks like this:using System;using System.Collections.Generic;using System.Linq;using System.Runtime.Serialization;using System.ServiceModel;using System.ServiceModel.Web;using System.Text;using System.Drawing;using SilverlightApplication1;namespace Color_WCF{ // NOTE: You can use the "Rename" command on the "Refactor" menu to change the interface name "IService1"in both code and config file together. [ServiceContract] public interface IService1 { [OperationContract] string colorName(string a); }}Step 2: The complete code for the Service1.svc.cs looks like this:using System;using System.Collections.Generic;using System.Linq;using System.Runtime.Serialization;using System.ServiceModel;using System.ServiceModel.Web;using System.Text;using System.Drawing;using SilverlightApplication1; namespace Color_WCF{ // NOTE: You can use the "Rename" command on the "Refactor" menu to change the class name "Service1" in code, svc and config file together. public class Service1 : IService1 { public string colorName(string a) { return a; } }}Step 3: The complete code for the Web.Config looks like this:<?xml version="1.0"?><configuration> <system.web> <compilation debug="true" targetFramework="4.0" /> </system.web> <system.serviceModel> <behaviors> <serviceBehaviors> <behavior> <!-- To avoid disclosing metadata information, set the value below to false and remove the metadata endpoint above before deployment --> <serviceMetadata httpGetEnabled="true"/>
<!-- To receive exception details in faults for debugging purposes, set the value below to true. Set to falsebefore deployment to avoid disclosing exception information --> <serviceDebug includeExceptionDetailInFaults="false"/> </behavior> </serviceBehaviors> </behaviors> <serviceHostingEnvironment multipleSiteBindingsEnabled="true" /> </system.serviceModel> <system.webServer> <modules runAllManagedModulesForAllRequests="true"/> </system.webServer></configuration>Step 4: The complete code for the MainPage.xaml looks like this:<phone:PhoneApplicationPage x:Class="Color_Picker_Application.MainPage" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:phone="clr-namespace:Microsoft.Phone.Controls;assembly=Microsoft.Phone" xmlns:shell="clr-namespace:Microsoft.Phone.Shell;assembly=Microsoft.Phone" xmlns:d="http://schemas.microsoft.com/expression/blend/2008" xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006" mc:Ignorable="d" d:DesignWidth="480" d:DesignHeight="768" FontFamily="{StaticResource PhoneFontFamilyNormal}" FontSize="{StaticResource PhoneFontSizeNormal}" Foreground="{StaticResource PhoneForegroundBrush}" SupportedOrientations="Portrait" Orientation="Portrait" shell:SystemTray.IsVisible="True" Loaded="PhoneApplicationPage_Loaded">
<!--LayoutRoot is the root grid where all page content is placed--> <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="Color Picker Application" FontFamily="Verdana" FontSize="22" Style="{StaticResource PhoneTextNormalStyle}"/> <TextBlock x:Name="PageTitle" Text="Windows 7 Phone" Margin="9,-7,0,0" Style="{StaticResourcePhoneTextTitle1Style}"/> </StackPanel> <!--ContentPanel - place additional content here--> <Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0"> <TextBlock Height="30" FontFamily="Verdana" FontSize="22" HorizontalAlignment="Left" Margin="15,27,0,0" Name="textBlock1" Text="Your Selected Color #:" VerticalAlignment="Top" /> <TextBox Height="75" Width="177" HorizontalAlignment="Left" Margin="273,6,0,0" Name="textBox1" VerticalAlignment="Top" /> <Rectangle Height="58" HorizontalAlignment="Left" Margin="273,87,0,0" Name="rectangle1" Stroke="Black" StrokeThickness="1" VerticalAlignment="Top" Width="177" /> <TextBlock FontFamily="Verdana" FontSize="22" Height="30" HorizontalAlignment="Left" Margin="12,101,0,0"Name="textBlock2" Text="Your Selected Color is: " VerticalAlignment="Top" /> </Grid> </Grid> <!--Sample code showing usage of ApplicationBar--> <!--<phone:PhoneApplicationPage.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:ApplicationBar.MenuItems> <shell:ApplicationBarMenuItem Text="MenuItem 1"/> <shell:ApplicationBarMenuItem Text="MenuItem 2"/> </shell:ApplicationBar.MenuItems> </shell:ApplicationBar> </phone:PhoneApplicationPage.ApplicationBar>--></phone:PhoneApplicationPage>Step 5: The complete code for the MainPage.xaml.cs looks like this: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; using Coding4Fun.Phone.Controls; using Color_Picker_Application.ServiceReference1;using SilverlightApplication1; namespace Color_Picker_Application { public partial class MainPage : PhoneApplicationPage { // Constructor public MainPage() { InitializeComponent(); } private void PhoneApplicationPage_Loaded(object sender, RoutedEventArgs e) { objPicker.Height = 450; objPicker.Width = 500; objPicker.HorizontalAlignment = System.Windows.HorizontalAlignment.Stretch; objPicker.VerticalAlignment = System.Windows.VerticalAlignment.Bottom; objPicker.ColorChanged +=new ColorBaseControl.ColorChangedHandler(picker_Color); this.ContentPanel.Children.Add(objPicker); } private void colorname_Call(object sender, colorNameCompletedEventArgs e) { textBox1.Text = e.Result; } private void picker_Color(object sender, System.Windows.Media.Color newcolor) { objClient.colorNameCompleted +=new EventHandler<colorNameCompletedEventArgs>(colorname_Call); objClient.colorNameAsync(newcolor.ToString()); rectangle1.Fill = new SolidColorBrush(newcolor); } #region Instance Variables ColorPicker objPicker = new ColorPicker(); Service1Client objClient = new Service1Client(); #endregion } }Step 6: The output of the application looks like this:Step 7: The output of the Color Picked Application looks like this:I hope this article is useful for you. I look forward for your comments and feedback. Thanks Vijay Prativadi.
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