将Silverlight Datagrid绑定到Excel XML文件

我试图从已经被保存为XML的Excel文件中提取数据，并将其绑定到Silverlight DataGrid。 我正在关注我在网上find的教程，但无法获得理想的结果。

using System; using System.Windows; using System.Windows.Controls; using System.Windows.Documents; using System.Windows.Ink; using System.Windows.Input; using System.Windows.Media; using System.Windows.Media.Animation; using System.Windows.Shapes; using System.Xml.Linq; using System.Linq; using System.IO; using System.Collections.Generic; using System.Windows.Data; using System.Collections.ObjectModel; namespace AmicusToApexImporter { public partial class MainPage : UserControl { static ObservableCollection<List<string>> items = new ObservableCollection<List<string>>(); public MainPage() { // Required to initialize variables InitializeComponent(); } private void ImportXMLFIle() { var doc = XDocument.Parse(ReadUserXMLFile()); PopulateExcelDataToDataGrid(doc); SetupDataGridFromSpreadsheetColumnNames(doc); } private string ReadUserXMLFile() { OpenFileDialog dlg = new OpenFileDialog(); dlg.Multiselect = false; dlg.Filter = "Excel XML Files (*.xml)|*.xml"; bool bResult = (bool)dlg.ShowDialog(); if (!bResult) return ""; FileInfo info = dlg.File; StatusText.Text = info.Name; // open the stream for reading Stream s = info.OpenRead(); StreamReader reader = new StreamReader(s); var xml = reader.ReadToEnd(); return xml; } private void SetupDataGridFromSpreadsheetColumnNames(XDocument doc) { // get a list of column names var columnNames = doc.Descendants().Where(x => x.Name.LocalName == "Row").First().Descendants().Where(y => y.Name.LocalName == "Data").Select(q => q.Value).ToList(); int count = 0; // create the columns in the datagrid and set the bindings to use // a value converter that can process the array of strings foreach (var name in columnNames) { var column = new DataGridTextColumn() { Header = name }; dataGrid1.Columns.Add(column); column.Binding = new Binding() { Converter = (IValueConverter)this.Resources["arrayIndexToValueConverter"], ConverterParameter = count }; count++; } // set the data source of the data grid dataGrid1.ItemsSource = items; } private static void PopulateExcelDataToDataGrid(XDocument doc) { var rows = doc.Descendants().Where(x => x.Name.LocalName == "Row"); int rowCount = 0; foreach (var row in rows) { // skip the data in the first row since it is the header if (rowCount > 0) { var data = row.Descendants().Where(y => y.Name.LocalName == "Data").Select(q => q.Value).ToList(); items.Add(data); } rowCount++; } } private void btnGo_Click(object sender, System.Windows.RoutedEventArgs e) { ImportXMLFIle(); } } public class ArrayIndexToValueConverter : IValueConverter { #region IValueConverter Members public object Convert(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { var index = (int)parameter; var list = value as List<string>; if (index >= list.Count) return ""; return list[index]; } public object ConvertBack(object value, Type targetType, object parameter, System.Globalization.CultureInfo culture) { throw new NotImplementedException(); } #endregion } } 

Datagrid中的所有字段都填充了“system.collections.generic.list 1 system.string”，并将三个其他列添加到Grid – 容量，计数，项目。

我究竟做错了什么？ 谢谢。

Answer 1

看看以下接受的答案：

在Silverlight中dynamic绑定XML到DataGrid

它采取了不同的方法，但我相信它也会起作用。

Answer 2

我知道这个post太旧，我问谷歌的答案，但没有为我工作。

解决scheme是：

首先，在xaml页面中声明您已经在代码中实现的IValueConverter类，例如：

…. xmlns：mc =“http://schemas.openxmlformats.org/markup-compatibility/2006”xmlns：local =“clr-namespace：SilverLigthApp”….

那么哟必须有一个资源，代码正在寻找一个名为“arrayIndexToValueConverter”在行“列。绑定=新的绑定（）{转换器=（IValueConverter）this.Resources [”arrayIndexToValueConverter“]，ConverterParameter =计数}的资源。 “

所以，你必须在控制资源部分声明：

….

试试这个，它为我工作。

对不起，我的英文，我希望这为你工作，因为它为我做了。