wp7 加载更多信息

    public partial class RefreshMore : UserControl
    {
        model mymodel = new model() { SEX = true };
        private ObservableCollection<EmailObject> DemoData = new ObservableCollection<EmailObject>();
        public RefreshMore()
        {
            InitializeComponent();
            
            this.listBox1.ItemsSource = this.DemoData;
            this.DataContext = mymodel;
        }
 
        private void UserControl_Loaded(object sender, RoutedEventArgs e)
        {
            string buf = "Good night ! ";
            for (int i = 0; i < 10; i++)
            {
                DemoData.Add(new EmailObject() { Body = buf + i ,Read="",Unread=false});
            }
        }

        private void Buton_Click(object sender, RoutedEventArgs e)
        {
            string buf = "Good night ! ";
            for (int i = 0; i < 15; i++)
            {
                DemoData.Add(new EmailObject() { Body = buf + i, Read = "", Unread = false });
            }
            mymodel.SEX = false;

        }
    }

uc

  <Converters:BooleanToVisibilityConverter x:Key="BoolToVisConverter" />

    <Grid x:Name="LayoutRoot">
        <ScrollViewer>
            <Grid>
                <Grid.RowDefinitions>
                    <RowDefinition Height="Auto"/>
                    <RowDefinition Height="*"/>
                    <RowDefinition Height="Auto"/>
                </Grid.RowDefinitions>

                <TextBlock TextWrapping="Wrap" Text="TextBlock" VerticalAlignment="Top" Height="30" Margin="0,-30,-3,0" Width="400" Visibility="Visible"/>

                <ListBox Grid.Row="1" x:Name="listBox1" Margin="15,0" SelectionMode="Multiple" ItemsSource="{Binding LstModel}" ScrollViewer.VerticalScrollBarVisibility="Disabled">
                    <ListBox.ItemTemplate>
                        <DataTemplate>
                            <StackPanel Orientation="Horizontal" Margin="0,0,0,20">
                                <Rectangle Height="100" Width="100" Fill="#FFE5001b" Margin="0,0,9,0"/>
                                <TextBlock Text="{Binding Body}" TextWrapping="Wrap" Style="{StaticResource PhoneTextLargeStyle}"/>
                            </StackPanel>
                        </DataTemplate>
                    </ListBox.ItemTemplate>
                </ListBox>

                <Button Grid.Row="2" x:Name="Buton" Height="72" Content="加载更多" Visibility="{Binding SEX, Converter={StaticResource BoolToVisConverter}}" Click="Buton_Click"/>
            </Grid>
        </ScrollViewer>
    </Grid>

在你的父控件上面 <my:RefreshMore x:Name="MyRefreshMore"/>

大概思路是这样的。。牛人勿喷我啊。我还是初学者