Popup MessageBox Using Silverlight4.0

Features

• Easy to get started and extend.
• Message types include  Error, Confirm only. But others can include.
• Icons are provided.

XAML:

//Child Window  CustomMessage
<controls:ChildWindow x:Class="MyMessageBox.CustomMessage" 
      xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" 
      xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" 
      xmlns:controls="clr-namespace:System.Windows.Controls;assembly=System.Windows.Controls" 
      Width="293" Height="134" Title="CustomMessage">
   <Border x:Name="MessageBorder" BorderThickness="1" BorderBrush="#FF0B6CDE">
        <Grid x:Name="LayoutRoot" Margin="2">
            <Grid.ColumnDefinitions>
                <ColumnDefinition Width="75*" />
                <ColumnDefinition Width="198*" />
            </Grid.ColumnDefinitions>
            <Grid.RowDefinitions>
                <RowDefinition Height="67*" />
                <RowDefinition Height="28*" />
            </Grid.RowDefinitions>
            <StackPanel Orientation="Horizontal" Grid.Row="1" 
                      VerticalAlignment="Bottom" Grid.ColumnSpan="2" Height="28" 
                      Name="ButtonStack" HorizontalAlignment="Right" Margin="0, 0, 0, 5">
                <Button x:Name="OKButton" Click="OKButton_Click" Content="OK" 
                     Width="75" Height="23" HorizontalAlignment="Center" 
                     VerticalAlignment="Bottom" Margin="0,0,6,0" 
                     VerticalContentAlignment="Center" Padding="0" />
                <Button Content="No" Height="23" x:Name="CancelButton" 
                  Click="CancelButton_Click" Width="75"  HorizontalAlignment="Center" 
                  VerticalAlignment="Bottom" Padding="3" Visibility="Collapsed" />

            </StackPanel>
            <Image Name="MessageIcon" Stretch="Uniform" VerticalAlignment="Center" 
               HorizontalAlignment="Right" Margin="0,8,6,27" Height="62" Width="56" 
               Grid.RowSpan="2" Source="/MyMessageBox;component/icon/Bullet-question-256.png" />
            <Border BorderBrush="{x:Null}" BorderThickness="1" Grid.ColumnSpan="2" 
                     Margin="67,0,0,0" Name="TextBlockBorder">
                <TextBlock TextWrapping="Wrap" Name="TextBlock" 
                   VerticalAlignment="Center" TextAlignment="Left" 
                   Text="Message" Padding="15,0,0,0" />
            </Border>
            <TextBox Grid.Column="1" Height="21" HorizontalAlignment="Left" 
               Margin="9,42,0,0" Name="InputTextBox" VerticalAlignment="Top" 
               Width="182" Visibility="Collapsed" FontSize="10" Padding="0.5" />
            <ComboBox Grid.Column="1" Height="21" HorizontalAlignment="Left" 
               Margin="9,42,0,0" Name="InputComboBox" VerticalAlignment="Top" 
               Width="182" Visibility="Collapsed" FontSize="10" Padding="5,0,0,0"/>
        </Grid>
    </Border>
</controls:ChildWindow>

C# code for child window:

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 System.Windows.Media.Imaging;
using System.Windows.Automation.Peers;
using System.Windows.Automation.Provider;

namespace MyMessageBox
{
    public partial class CustomMessage : ChildWindow
    {       
        public enum MessageType { Info, Error, Confirm, TextInput, ComboInput };        
        public string Input { get; set; }      
        private const string ICONS_PATH = "/SilverlightMessageBoxes;component/icons/";
        public CustomMessage(string message, MessageType type = 
                     MessageType.Info, String[] inputOptions = null)
        {
            InitializeComponent();

            switch (type)
            {

                case MessageType.Info:                  
                    break;

                case MessageType.TextInput:
                case MessageType.ComboInput:
                   
                    this.TextBlock.VerticalAlignment = VerticalAlignment.Top;
                    
                    Thickness newBorderMargin = this.TextBlockBorder.Margin;
                    newBorderMargin.Top += 5;
                    this.TextBlockBorder.Margin = newBorderMargin;
                  
                    if (type == MessageType.ComboInput)
                    {
                        this.InputComboBox.ItemsSource = inputOptions;

                      
                        /**
                        if (inputOptions != null && inputOptions.Length != 0)
                            this.InputComboBox.SelectedIndex = 0;
                        */

                        this.InputComboBox.Visibility = Visibility.Visible;
                    }
                    else //TextBox input.
                    {
                        this.InputTextBox.Visibility = Visibility.Visible;
                    }
                    break;

                case MessageType.Error:
                    setMessageIcon("button_cancel-256.png");
                    this.MessageBorder.BorderBrush = new SolidColorBrush(Colors.Red);
                    break;
                case MessageType.Confirm:
                    setMessageIcon("Bullet-question-256.png");
                    this.MessageBorder.BorderBrush = new SolidColorBrush(Colors.Orange);
                    this.OKButton.Content = "Yes";
                    this.CancelButton.Content = "No";
                    this.CancelButton.Visibility = Visibility.Visible;

                    break;
            }

            //Set the message.
            this.TextBlock.Text = message;
        }
       
        private void setMessageIcon(string imagePath)
        {
            MessageIcon.Source = new BitmapImage(
              new Uri(ICONS_PATH + imagePath, UriKind.RelativeOrAbsolute));
        }

        #region Button Hanlders

        private void OKButton_Click(object sender, RoutedEventArgs e)
        {

            //Check to see if the input text box was visiable
            //and that at least some text was entered.
            if (this.InputTextBox.Visibility == Visibility.Visible
                && this.InputTextBox.Text.Length > 0)

                //Store the text in the textbox input into Input property.
                Input = InputTextBox.Text;

            //Else check to see if the input combo box was visible.
            else if (this.InputComboBox.Visibility == Visibility.Visible
                    && this.InputComboBox.SelectedItem != null)

                //Store the selected value.
                Input = (String)InputComboBox.SelectedValue;

            //If no input was received, set the Input property to null
            //so users can check if the input was empty.
            else
                Input = null;

            this.DialogResult = true;
        }

        private void CancelButton_Click(object sender, RoutedEventArgs e)
        {
            this.DialogResult = false;
        }

        #endregion

        #region Keyboad Event Handlers

        private void keyDown(object sender, KeyEventArgs e)
        {
            //Click the OK button if enter was pressed on the textbox.
            if (e.Key == Key.Enter)
            {
                // Create a ButtonAutomationPeer using the ClickButton.
                ButtonAutomationPeer buttonAutoPeer = new ButtonAutomationPeer(OKButton);

                // Create an InvokeProvider.
                IInvokeProvider invokeProvider = 
                  buttonAutoPeer.GetPattern(PatternInterface.Invoke) as IInvokeProvider;

                // Invoke the default event, which is click for the button.
                invokeProvider.Invoke();
            }
        }

        #endregion
    }
}

// Message Class

using System;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Animation;
using System.Windows.Shapes;

namespace MyMessageBox
{
    public static class Message
    {

        /// <summary>
        /// Outputs a user-friendly error message.
        /// </summary>
        /// <param name="message">The message to display.</param>
        public static void ErrorMessage(string message)
        {
            new CustomMessage(message, CustomMessage.MessageType.Error).Show();
        }

        /// <summary>
        /// Outputs a user-friendly info message.
        /// </summary>
        /// <param name="message">The message to display.</param>
        public static void InfoMessage(string message)
        {
            new CustomMessage(message, CustomMessage.MessageType.Info).Show();
        }


    }
}
////From front End Button

private void btnCall_Click(object sender, RoutedEventArgs e)
{  
    CustomMessage customMessage = new CustomMessage("Do you like me?",  
                  CustomMessage.MessageType.Confirm);

    customMessage.OKButton.Click += (obj, args) =>
    {
        Message.InfoMessage("Thanks. You make me blush.");
    };

    customMessage.CancelButton.Click += (obj, args) =>
    {
        Message.ErrorMessage("Wrong answer! Your computer will distruct in 10 seconds...");
    };

    customMessage.Show();
}

private void button1_Click(object sender, RoutedEventArgs e)
{
    CustomMessage customMessage = new CustomMessage("Its Error!!!!!!?", 
                  CustomMessage.MessageType.Error);

    customMessage.OKButton.Click += (obj, args) =>
    {
        Message.InfoMessage("You Choos error");
    };
               customMessage.Show();
}