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。 

　　

作者：Work Hard Work Smart
出处：http://www.cnblogs.com/linlf03/
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