windows phone 7 version: ObservableCollectionEx (1)

My version is supported for across thread. The following is the source code:

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;
using System.Collections.ObjectModel;
using System.Windows.Threading;

namespace ObservableCollectionEx
{
    public class ObservableCollectionEx<T> : ObservableCollection<T>
    {
        Dispatcher curerntDispatcher = (Application.Current as App).CurrentDispatcher;
        public new void Add(T item)
        {
            try
            {
                if (curerntDispatcher != null)
                {
                    curerntDispatcher.BeginInvoke(() =>
                    {
                        base.Add(item);
                    });
                }
                else
                {
                    base.Add(item);
                }
            }
            catch (Exception exce)
            {
               // Utils.e(exce.Message, exce);
            }
        }

        public new bool Remove(T item)
        {
            try
            {
                if (curerntDispatcher != null)
                {
                    curerntDispatcher.BeginInvoke(() =>
                    {
                        base.Remove(item);
                    });
                }
                else
                {
                    base.Remove(item);
                }
            }
            catch (Exception exce)
            {
               // Utils.e(exce.Message, exce);
            }

            return true;
        }

        public new void Clear()
        {
            try
            {
                if (curerntDispatcher != null)
                {
                    curerntDispatcher.BeginInvoke(() =>
                    {
                        base.Clear();
                    });
                }
                else
                {
                    base.Clear();
                }
            }
            catch (Exception exce)
            {
               // Utils.e(exce.Message, exce);
            }
        }

        public void RemoveAt(int index)
        {
            try
            {
                if (curerntDispatcher != null)
                {
                    curerntDispatcher.BeginInvoke(() =>
                    {
                        base.RemoveAt(index);
                    });
                }
                else
                {
                    base.RemoveAt(index);
                }
            }
            catch (Exception exce)
            {
               // Utils.e(exce.Message, exce);
            }
        }

    }
}

关于具体的使用演示，XAML code：

<phone:PhoneApplicationPage 
    x:Class="ObservableCollectionEx.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">

    <!--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="MY APPLICATION" Style="{StaticResource PhoneTextNormalStyle}"/>
            <TextBlock x:Name="PageTitle" Text="page name" 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">
            <Button Content="Button" Height="72" HorizontalAlignment="Left" Margin="12,426,0,0" Name="button1" VerticalAlignment="Top" Width="160" Click="button1_Click" />
            <ListBox Height="283" HorizontalAlignment="Left" Margin="24,30,0,0" Name="listBox1" VerticalAlignment="Top" Width="406" >
                <ListBox.ItemTemplate>
                    <DataTemplate>
                        <TextBox Name="textBsdfd" Text="{Binding Path=FullName}"></TextBox>
                    </DataTemplate>
                </ListBox.ItemTemplate>
            </ListBox>
        </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>

下面是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;
using System.Threading;
using System.Windows.Navigation;
using System.Collections.ObjectModel;
using System.Windows.Threading;

namespace ObservableCollectionEx
{
    public partial class MainPage : PhoneApplicationPage
    {
        private int temp = 0;

        ObservableCollectionEx2<SourceCode> testConnection = null;
    
        public MainPage()
        {
            InitializeComponent();
            (Application.Current as App).CurrentDispatcher = this.Dispatcher;
            testConnection = new ObservableCollectionEx2<SourceCode>();
        }

        protected override void OnNavigatedTo(NavigationEventArgs e)
        {
            (Application.Current as App).CurrentDispatcher = this.Dispatcher;


            this.listBox1.ItemsSource = testConnection;
            base.OnNavigatedTo(e);
        }

        private void button1_Click(object sender, RoutedEventArgs e)
        {
            Thread test1 = new Thread(DoWork);

            test1.Start();

            Thread test2 = new Thread(DoWork2);

            test2.Start();

        }

        private void DoWork(object etest)
        {
            try
            {
                int tempCount = 0;
                SourceCode code = new SourceCode();
                code.FullName = temp.ToString();
                temp++;

                lock (App.LockObject)
                {
                    testConnection.Add(code);                   
                     tempCount = testConnection.Count();
                }
                   
                Thread.Sleep(100);

            }
            catch (Exception exce)
            {
                int i = 0;
            }

        }


        private void DoWork2(object etest)
        {

            try
            {
                int tempCount = 0;
                SourceCode code = new SourceCode();
                code.FullName = temp.ToString();
                temp++;

                lock (App.LockObject)
                {
                    testConnection.Add(code);
                    tempCount = testConnection.Count();
                }

                Thread.Sleep(100);

            }
            catch (Exception exce)
            {
                int i = 0;
            }

        }
    }
    
}

下面是App的 C#文件：里面只需要加：

  public static readonly object LockObject = new object();

       // public static ObservableCollectionEx2<SourceCode> testConnection = new ObservableCollectionEx2<SourceCode>();

        public Dispatcher CurrentDispatcher { get; set; }

大功告成，不需要你手动刷一下UI,所有的UI均自动刷新。