C#:WPF 数据网格和 xml 文件

Question

如何使用类读取 xml 文件并将其填充到数据网格中？数据网格应该具有验证功能？

XML文件:

<?xml version='1.0'?>
<Data>
 <Book>
 <Author>John Doe</Author>
 <Title>Straight Track Demo</Title>
 <Version>1</Version>  
 </Book>
</Data>

Answer 1

有几种方法可以加载带有 XML 的 DataGrid(还有其他方法):

1. 使用XmlDataProvider
2. 从代码隐藏中读取 XML

这是一个使用这两种方法的非常粗糙的示例。

XAML

<Window x:Class="WpfApplication1.MyDataGrid"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="MyDataGrid" Height="300" Width="300">
    <Window.Resources>

        <XmlDataProvider x:Key="BookData" 
            Source="C:\Somewhere\Books.xml" XPath="Data"/>

    </Window.Resources>
    <StackPanel>
        <DataGrid 
            ItemsSource="{Binding Path=Elements[Book]}"
            AutoGenerateColumns="False" Height="Auto" 
            Name="dataGrid1" 
            VerticalAlignment="Top" HorizontalAlignment="Stretch">

            <DataGrid.Columns>
                <DataGridTextColumn 
                    Header="Author" 
                    Binding="{Binding Path=Element[Author].Value}"/>
                <DataGridTextColumn 
                    Header="Title" 
                    Binding="{Binding Path=Element[Title].Value}"/>
                <DataGridTextColumn 
                    Header="Version" 
                    Binding="{Binding Path=Element[Version].Value}" />
            </DataGrid.Columns>

        </DataGrid>


        <DataGrid 
            DataContext="{StaticResource BookData}" 
            ItemsSource="{Binding XPath=Book}"
            AutoGenerateColumns="False" Height="Auto" 
            Name="dataGrid2" Margin="0,25,0,0" 
            VerticalAlignment="Top" HorizontalAlignment="Stretch">

            <DataGrid.Columns>
                <DataGridTextColumn 
                    Header="Author" 
                    Binding="{Binding XPath=Author}"/>
                <DataGridTextColumn 
                    Header="Title" 
                    Binding="{Binding XPath=Title}"/>
                <DataGridTextColumn 
                    Header="Version" 
                    Binding="{Binding XPath=Version}" />
            </DataGrid.Columns>

        </DataGrid>

    </StackPanel>
</Window>

代码隐藏

using System.Windows;
using System.Xml.Linq;

namespace WpfApplication1
{
    /// <summary>
    /// Interaction logic for MyDataGrid.xaml
    /// </summary>
    public partial class MyDataGrid : Window
    {
        public MyDataGrid()
        {
            InitializeComponent();

            var xml = XDocument.Load( "c:\\Somewhere\\Books.xml" ).Root;
            dataGrid1.DataContext = xml;
        }

    }
}

供引用

最后，这里有几篇文章:

1. Binding.XPath Property on MSDN
2. Customize Data Display with Data Binding and WPF > Using XML Data
3. A DataGrid sample using XML data