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

object数据源

xml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

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);

}

object ConvertBack( 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,255)!important">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。