wpf数据绑定

前段：

<Window x:Class="WpfApplication1.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:scm="clr-namespace:System.ComponentModel;assembly=WindowsBase"
        xmlns:local="clr-namespace:WpfApplication1"
        Title="MainWindow" Height="350" Width="525">
    <Grid>

        <Grid.RowDefinitions>

            <RowDefinition Height="140"/>

            <RowDefinition Height="150"/>

            <RowDefinition Height="140"/>

            <RowDefinition Height="100*"/>

        </Grid.RowDefinitions>



        <StackPanel Grid.Row="0">

            <TextBlock Width="248" Height="24" Text="股票名称:"

        TextWrapping="Wrap"/>

            <ListBox x:Name="listStockName" Width="248" Height="56">

                <ListBoxItem Content="全通教育"/>

                <ListBoxItem Content="大智慧"/>

                <ListBoxItem Content="宝钢股份"/>

                <ListBoxItem Content="浦发银行"/>

                <ListBoxItem Content="工商银行"/>

                <ListBoxItem Content="中国建筑"/>

                <ListBoxItem Content="中国南车"/>

            </ListBox>

            <TextBlock Width="248" Height="24" Text="你所选中的股票名称:" />

            <TextBlock Width="248" Height="24" Text="{Binding ElementName=listStockName, Path=SelectedItem.Content}">



            </TextBlock>

        </StackPanel>

        <StackPanel Grid.Row="1">

            <TextBlock Width="248" Height="24" Text="颜色:"

        TextWrapping="Wrap"/>

            <ListBox x:Name="listColor" Width="248" Height="56">

                <ListBoxItem Content="Blue"/>

                <ListBoxItem Content="Red"/>

                <ListBoxItem Content="Green"/>

                <ListBoxItem Content="Gray"/>

                <ListBoxItem Content="Cyan"/>

                <ListBoxItem Content="GreenYellow"/>

                <ListBoxItem Content="Orange"/>

            </ListBox>

            <TextBlock Width="248" Height="24" Text="改变背景色:" />

            <TextBlock Width="248" Height="24" Text="{Binding ElementName=listColor, Path=SelectedItem.Content, Mode=OneWay}"

                       Background="{Binding ElementName=listColor, Path=SelectedItem.Content, Mode=OneWay}">



            </TextBlock>

            <TextBox Name="txtTwoWay" Text="{Binding ElementName=listColor,Path=SelectedItem.Content,Mode=TwoWay}"

                     Background="{Binding ElementName=listColor,Path=SelectedItem.Content,Mode=TwoWay}"></TextBox>

        </StackPanel>


        <StackPanel Grid.Row="2">

            <StackPanel.Resources>

                <XmlDataProvider x:Key="MyColors"  Source="Colors.xml"  XPath="colors">
                    


                </XmlDataProvider>



            </StackPanel.Resources>

            <TextBlock Width="248" Height="24" Text="XML数据绑定:"

        TextWrapping="Wrap"/>

            <ListBox x:Name="listXmlColor" Width="248" Height="56" IsSynchronizedWithCurrentItem="True"

                     ItemsSource="{Binding Source={StaticResource MyColors},XPath=color/@name}">



            </ListBox>

            <TextBlock Width="248" Height="24" Text="选中的颜色:" />

            <TextBlock Width="248" Height="24" Text="{Binding ElementName=listXmlColor,  Path=SelectedValue, Mode=OneWay}">


            </TextBlock>

        </StackPanel>





        <StackPanel Grid.Row="3">

            <StackPanel.Resources>

                <ObjectDataProvider x:Key="students"  ObjectType="{x:Type local:StudentService}" MethodName="GetStudentList">



                </ObjectDataProvider>



                <DataTemplate x:Key="studentLayout" DataType="students">

                    <StackPanel Orientation="Horizontal">

                        <TextBlock Text="{Binding Path=Name}"

                            FontWeight="Bold" Foreground="Blue"/>

                        <TextBlock Text=", "></TextBlock>

                        <TextBlock Text="{Binding Path=Age}"></TextBlock>

                        <TextBlock Text=", "></TextBlock>

                        <TextBlock Text="{Binding Path=Birthday}"></TextBlock>

                        <TextBlock Text=", "></TextBlock>

                        <TextBlock Text="{Binding Path=Country}"></TextBlock>



                    </StackPanel>

                </DataTemplate>



                <CollectionViewSource x:Key="studentsView" Source="{Binding Source={StaticResource students}}">

                    <CollectionViewSource.SortDescriptions>

                        <scm:SortDescription PropertyName="Name" Direction="Ascending" />

                        <scm:SortDescription PropertyName="Age" Direction="Descending" />

                    </CollectionViewSource.SortDescriptions>

                </CollectionViewSource>

            </StackPanel.Resources>

            <TextBlock Width="248" Height="24" Text="对象数据绑定:"

        TextWrapping="Wrap"/>

            <ListBox x:Name="listObjectBind" Width="450" Height="80" IsSynchronizedWithCurrentItem="True"

                     ItemsSource="{Binding Source={StaticResource students}}"

                     ItemTemplate="{DynamicResource studentLayout}">



            </ListBox>

            <TextBlock Width="248" Height="24" Text="数据排序:"

        TextWrapping="Wrap"/>

            <DataGrid DataContext="{StaticResource studentsView}" AutoGenerateColumns="False"   

                ItemsSource="{Binding}" CanUserAddRows="False">

                <DataGrid.Columns>

                    <DataGridTextColumn Binding="{Binding Name}" Header="名称" />

                    <DataGridTextColumn Binding="{Binding Age}" Header="年龄" />

                    <DataGridTextColumn Binding="{Binding Country}" Header="国家" />

                    <DataGridTextColumn Binding="{Binding Birthday}" Header="出生日期" />

                </DataGrid.Columns>

            </DataGrid>

        </StackPanel>
        <Button Content="Button" HorizontalAlignment="Left" Margin="24,96,0,0" VerticalAlignment="Top" Width="75" RenderTransformOrigin="-0.179,-0.938" ContentStringFormat="http://dmsite.chinacloudsites.cn/root/index.html" Click="Button_Click"/>


    </Grid>


</Window>

后端

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;

namespace WpfApplication1
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        
    }



    public class StudentService
    {

        public List<Student> GetStudentList()
        {

            Student liang = new Student();

            liang.Age = "18";

            liang.Name = "梁丘";

            liang.Birthday = "1990-02-03";

            liang.Country = "中国";

            Student zuo = new Student();

            zuo.Age = "22";

            zuo.Name = "左丘";

            zuo.Birthday = "1992-02-03";

            zuo.Country = "中国";

            Student diwu = new Student();

            diwu.Age = "32";

            diwu.Name = "第五言";

            diwu.Birthday = "1982-11-03";

            diwu.Country = "中国";

            Student yang = new Student();

            yang.Age = "12";

            yang.Name = "羊舌微";

            yang.Birthday = "2002-11-13";

            yang.Country = "中国";

            List<Student> personList = new List<Student>();

            personList.Add(liang);

            personList.Add(zuo);

            personList.Add(diwu);

            personList.Add(yang);

            return personList;

        }



    }

    public class Student : DependencyObject
    {

        //声明一个静态只读的DependencyProperty字段

        public static readonly DependencyProperty NameProperty;

        public static readonly DependencyProperty AgeProperty;

        public static readonly DependencyProperty BirthdayProperty;

        public static readonly DependencyProperty CountryProperty;

        static Student()
        {

            //注册我们定义的依赖属性Name,Age,birthday,Country

            NameProperty = DependencyProperty.Register("Name", typeof(string), typeof(Student),

                new PropertyMetadata("名称", OnValueChanged));

            AgeProperty = DependencyProperty.Register("Age", typeof(string), typeof(Student),

                new PropertyMetadata("年龄", OnValueChanged));

            BirthdayProperty = DependencyProperty.Register("Birthday", typeof(string), typeof(Student),

                new PropertyMetadata("出生日期", OnValueChanged));

            CountryProperty = DependencyProperty.Register("Country", typeof(string), typeof(Student),

                new PropertyMetadata("国家", OnValueChanged));

        }



        private static void OnValueChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
        {

            //当值改变时，我们可以在此做一些逻辑处理

        }



        //属性包装器，通过它来读取和设置我们刚才注册的依赖属性

        public string Name
        {

            get { return (string)GetValue(NameProperty); }

            set { SetValue(NameProperty, value); }

        }

        public string Age
        {

            get { return (string)GetValue(AgeProperty); }

            set { SetValue(AgeProperty, value); }

        }



        public string Birthday
        {

            get { return (string)GetValue(BirthdayProperty); }

            set { SetValue(BirthdayProperty, value); }

        }



        public string Country
        {

            get { return (string)GetValue(CountryProperty); }

            set { SetValue(CountryProperty, value); }

        }


    }
}