WPF绑定各种数据源之xml数据源

一、WPF绑定各种数据源索引

WPF 绑定各种数据源之Datatable

WPF绑定各种数据源之object数据源

WPF绑定各种数据源之xml数据源

WPF绑定各种数据源之元素控件属性

Binding的基础可参考WPF 绑定基础

二、WPF绑定各种数据源之xml数据源，此时的XML源写在界面了，当然也可以独立成文件。

 <Window.Resources>
        <Con:BackgroundConverter x:Key="BackgroundConverter"/>
        <XmlDataProvider x:Key="myPerson3">
            <x:XData>
                <PersonF xmlns="">
                    <person Name="Person1">
                        <ID>1</ID>
                        <Name>XiaoA</Name>
                        <Age>49</Age>
                    </person>
                    <person Name="Person2">
                        <ID>2</ID>
                        <Name>XiaoB</Name>
                        <Age>29</Age>
                    </person>
                    <person Name="Person3">
                        <ID>3</ID>
                        <Name>XiaoC</Name>
                        <Age>103</Age>
                    </person>
                    <person Name="Person4">
                        <ID>4</ID>
                        <Name>XiaoD</Name>
                        <Age>59</Age>
                    </person>
                </PersonF>
            </x:XData>
        </XmlDataProvider>
    </Window.Resources>

　　下面是绑定的代码。此时需要注意，原来用Path改成了XPath，因为这是XML源，并且ItemsSource 改成 ItemsSource="{Binding Source={StaticResource myPerson3},XPath=/PersonF/person}"

      <ListView Height="262" Margin="0,32,56,0" ItemsSource="{Binding Source={StaticResource myPerson3},XPath=/PersonF/person}" VerticalAlignment="Top"  Name="listView3" HorizontalAlignment="Right" Width="310">
            <ListView.View>
                <GridView>
                    <GridViewColumn Header="编号" DisplayMemberBinding="{Binding XPath=ID}"  Width="100" />
                    <GridViewColumn Header="姓名" DisplayMemberBinding="{Binding XPath=Name}" Width="100"/>
                    <GridViewColumn Header="年龄" Width="100">
                        <GridViewColumn.CellTemplate>
                            <DataTemplate>
                                <TextBlock Grid.Column="1" Text="{Binding XPath=Age}" Foreground="{Binding XPath=Age, Converter={StaticResource BackgroundConverter}}"/>
                            </DataTemplate>
                        </GridViewColumn.CellTemplate>
                    </GridViewColumn>
                </GridView>
            </ListView.View>
        </ListView>

　　下面是值转换

 public class BackgroundConverter : IValueConverter
    {
        #region IValueConverter Members

        public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            Color color = new Color();
            int num = int.Parse(value.ToString());
            if (num > 100)
                color = Colors.Yellow;
            else if (num < 50)
                color = Colors.LightGreen;
            else
                color = Colors.LightPink;
            return new SolidColorBrush(color);
        }

        public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            throw new NotImplementedException();
        }

        #endregion
    }

　　效果图：

2.使用外部XML数据源，只需做如下修改

<Window.Resources>
       <XmlDataProvider x:Key="myPerson3" Source="/Person.xml"/>
  </Window.Resources>

3.如果使用外部XML数据源，并且采用C#代码的形式，则如下：

           XmlDocument doc = new XmlDocument();
            doc.Load(@"http://www.cnblogs.com/XMLFile1.xml");
            XmlDataProvider provider = new XmlDataProvider();
            provider.Document = doc;
            provider.XPath = @"/PersonF/person";
           
            listView3.DataContext = provider;
            listView3.SetBinding(ListView.ItemsSourceProperty, new Binding());

 当然也可以使用XMLDataProvider的Source属性，此时只需做如下修改：

             XmlDataProvider provider = new XmlDataProvider();
            provider.Source = new Uri(@"F:\\XMLFile1.xml");
            provider.XPath = @"/PersonF/person";

其他不变。