An Introduction to the Silverlight samples in the All-In-One Framework

/****************************** Module Header ******************************\
* Module Name:                 MainPage.xaml.cs
* Project:                     CSSL3HTMLBridge
* Copyright (c) Microsoft Corporation.
* 
* HTML bridge samples code behind file.
* 
* This source is subject to the Microsoft Public License.
* See http://www.microsoft.com/opensource/licenses.mspx#Ms-PL.
* All other rights reserved.
* 
* History:
* * 10/21/2009 6:34 PM Mog Liang Created
\***************************************************************************/

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.Browser;
using System.Runtime.Serialization;
using System.ComponentModel;

namespace CSSL3HTMLBridge
{
    public partial class MainPage : UserControl
    {
        public MainPage()
        {
            InitializeComponent();

            // Register Scriptable Object.
            HtmlPage.RegisterScriptableObject("silverlightPage", this);

            // Attach Html Element event.
            HtmlPage.Document.GetElementById("Text2").AttachEvent("onkeyup", new EventHandler(HtmlKeyUp));
            
            tb1.TextChanged += new TextChangedEventHandler( tb1_TextChanged);
            tb4.TextChanged += tb4_TextChanged;
        }

        // Call javascript when first textbox text changed.
        private void tb1_TextChanged(object sender, TextChangedEventArgs e)
        {
            HtmlPage.Window.Invoke("changetext", tb1.Text);
        }

        // Handle html textbox keyup event.
        private void HtmlKeyUp(object sender, EventArgs e)
        {
                var value = ((HtmlElement)sender).GetProperty("value");
                tb2.Text = value.ToString();
        }

        // Create method for javascript.
        [ScriptableMember]
        public void ChangeTB3Text(string text)
        {
            tb3.Text = text;
        }

        // Create event allow registering by javascript.
        [ScriptableMember]
        public event EventHandler<TextEventArgs> TextChanged;

        void tb4_TextChanged(object sender, TextChangedEventArgs e)
        {
            var myargs = new TextEventArgs();
            myargs.Text = tb4.Text;
            if (TextChanged != null)
                TextChanged(this, new TextEventArgs { Text = tb4.Text });
        }

    }

    // Create custom Eventargs containing text property.
    public class TextEventArgs : EventArgs
    {
        [ScriptableMember]
        public string Text { set; get; }
    }
}