silverlight DataBind 小Demo

最新推荐文章于 2025-08-14 21:27:18 发布

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最新推荐文章于 2025-08-14 21:27:18 发布

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文章标签： c# java

原文链接：http://www.cnblogs.com/livewall/articles/1922733.html

我其实不懂C#,原来学的java.最近因为毕业设计的缘故必须要学silverlight.属于按葫芦画瓢的级别.

DataBind的流程

1)在XAML中添加Binding Class.指定binding的源,目标和绑定模式.

示例{Binding FirstName,Mode=”oneway”}

2)在后置代码中添加事件和事件处理程序

3)书写类, 如果是twoway,实现INotifyProperty接口.添加NotifPropertyChanged事件.写处理程序,在构造函数中添加要通知的改变的属性

4)在代码中实例化绑定数据,然后将目标的DataContext设为被实例化的对象.

XAML

代码

Book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;
using System.ComponentModel;

namespace DatabindDemo1
{
    public class Book :INotifyPropertyChanged
    {
        private string _title;
        public string Title {
            get { return _title; }
            set { _title = value; }
        }
        private double _price;
        public double Price {
            get { return _price; }
            set
            {
                _price = value;
                NotifyPropertyChange("Price");
            }
        }
        private string _header;
        public string Header {
            get { return _header; }
            set
            {
                _header = value;
                NotifyPropertyChange("Header");
            }
        }

        private string _isbn;
        public string Isbn
        {
            get { return _isbn; }
            set
            {
                _isbn = value;
                NotifyPropertyChange("Isbn");
            }
        }

        private void NotifyPropertyChange(string p)
        {
            if (PropertyChanged != null) {
                PropertyChanged(this,new PropertyChangedEventArgs(p));
            }
        }
        public event PropertyChangedEventHandler PropertyChanged;
    }
}

后置代码:

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;

namespace DatabindDemo1
{   
   
    public partial class MainPage : UserControl
    {  
        Book book = new Book();
        public MainPage()
        {
            InitializeComponent();
            this.Loaded += new RoutedEventHandler(Page_Loaded);
            book.Title = "猜猜我有多爱你";
            book.Price = 40;
            Title.DataContext = book;
            Price.DataContext = book;
        }

        void Page_Loaded(object sender, RoutedEventArgs e)
        {
            Book b = new Book()
            {
            Header = "浮过生命海",
            Isbn = "8898098"
            };
            LayoutRoot.DataContext = b;
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            book.Price = 50;
        }
    }
}

转载于:https://www.cnblogs.com/livewall/articles/1922733.html