SilverLight学习笔记--对象数据绑定

对象数据绑定

分三步实现：

1：在工程中创建一个类

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 SilverlightApplication6

{

    public class Book

    {

       public Book() { }

 

 

        public Book(string isbn, string title,

            DateTime publishdate, double price)

        {

            this.ISBN = isbn;

            this.Title = title;

            this.PublishDate = publishdate;

            this.Price = price;

        }

 

        //Define the public properties

        public string ISBN { get; set; }

        public string Title { get; set; }

        public DateTime PublishDate { get; set; }

        public double Price { get; set; }

    }

}

 

2：编写Xaml代码

<UserControl x:Class="SilverlightApplication6.Page"

    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"

    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"

    Width="600" Height="300">

    <Grid x:Name="LayoutRoot" Background="White">

        <StackPanel Orientation="Horizontal">

            <ListBox x:Name="MyBooks" Margin="5" ItemsSource="{Binding Mode=OneWay}" >

                <ListBox.ItemTemplate>

                    <DataTemplate>

                        <StackPanel Orientation="Horizontal" >

                            <TextBlock Text="{Binding ISBN}" Margin="0,0,50,0" />

                            <TextBlock Text="{Binding Title}" />

                        </StackPanel>

                    </DataTemplate>

                </ListBox.ItemTemplate>

            </ListBox>

            <StackPanel>

                <!--Visual division between the list and the details-->

                <Rectangle HorizontalAlignment="Left" Width="400" Height="2" Fill="Red" Margin="0,10,0,10"/>

                <!--The UI for the details view-->

                <StackPanel x:Name="BookDetails">

                    <TextBlock Text="{Binding ISBN, Mode=OneWay}" />

                    <TextBlock Text="{Binding Title, Mode=OneWay}" />

                    <TextBlock Text="{Binding PublishDate, Mode=OneWay }" />

                    <TextBlock Text="{Binding Price, Mode=OneWay}" />

                </StackPanel>

 

            </StackPanel>

 

        </StackPanel>

 

    </Grid>

</UserControl>

 

3：编写Page.xaml.cs

打开 Page.xaml.cs

注意添加引用 using System.Windows.Shapes;

 

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.Collections.ObjectModel;

 

namespace SilverlightApplication6

{

    public partial class Page : UserControl

    {

        public Page()

        {

            InitializeComponent();

            AllBooks.Add(new Book("4458907683", "Training Your Dog", new DateTime(2000, 2, 8), 44.25));

            AllBooks.Add(new Book("0446675385", "Good Owners, Great Dogs", new DateTime(1999, 9, 1), 15.99));

            //Set the data context for the list of books

            MyBooks.DataContext = AllBooks;

 

            this.MyBooks.SelectionChanged += new SelectionChangedEventHandler(MyBooks_SelectionChanged);

            MyBooks.SelectedIndex = 0;

 

 

        }

 

        private void MyBooks_SelectionChanged(object sender, SelectionChangedEventArgs e)

        {

            ListBox myBooks = sender as ListBox;

            BookDetails.DataContext = myBooks.SelectedItem;

        }

 

 

        private ObservableCollection<Book> _AllBooks;

        public ObservableCollection<Book> AllBooks

        {

            get

            {

                if (_AllBooks == null)

                {

                    _AllBooks = new ObservableCollection<Book>();

                    _AllBooks.Add(new Book("3390092284", "All About Dogs",

                        new DateTime(2004, 3, 4), 12.99));

 

                }

                return _AllBooks;

            }

        }

 

    }

}