当前位置:编程学习 > C#/ASP.NET >>

silverlight双向绑定 类绑定

OK,我们之前已经讲过控件的绑定,那么如果现在我定义一个user类,它有两个属性,分别是Name和Age,那么如何前台的textbox绑定到这个类中的属性呢?
下面我们讲一种简单的类绑定,首先我们声明这个类:
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 dataBind
{
    public class user
    {
        string name;
        public string Name
        {
            get { return name; }
            set { name = value; }
        }
        int age;
        public int Age
        {
            get { return age; }
            set { age = value; }
        }
    }
}
 
现在我在前台界面托两个textbox分别用来绑定类的Name和Age属性,托一个按钮用来显示绑定的信息。界面设计如下:

 
由于textbox1和textbox2分别要绑定user类的Name和Age属性,那么我将他们两个的文本值分别设置如下:
Text="{Binding Name,Mode=TwoWay}
Text="{Binding Age,Mode=TwoWay}
 
我们后台代码写成:
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 dataBind
{
    public partial class MainPage : UserControl
    {
        public MainPage()
        {
            InitializeComponent();
          
        }
        user u = new user();
        private void buttonBind_Click(object sender, RoutedEventArgs e)
        {
          
            MessageBox.Show("名字:"+u.Name +"\n年龄"+ u.Age);
        }
        private void LayoutRoot_Loaded(object sender, RoutedEventArgs e)
        {
          
            u.Name = "安亭";
            u.Age = 23;
            textBox1.DataContext = u;
            textBox2.DataContext = u;
        }
    }
}

 

补充:软件开发 , C# ,
CopyRight © 2022 站长资源库 编程知识问答 zzzyk.com All Rights Reserved
部分文章来自网络,