C# WPF代码隐藏：DataGridTextColumn显示列标题，但不显示来自使用xpath的xmlprovider的数据

我试图用XPath显示来自XMLProvider的数据。由于xml文件的动态特性，我需要通过代码隐藏加载数据

我正在寻找一个如下所示的数据网格：

Sensor    BIS  MAN  BIS  MAN
-----------------------------
Sensor1   45   43   44   46
Sensor2   45   43   43   45

仅供参考：在网格上方，我将显示一个假超级标题，用于分组BIS和MAN值（以防您不理解为什么重复BIS和MAN关键字）

datagrid的XAML代码：

<DataGrid Name="MDataGrid" AutoGenerateColumns="False"></DataGrid>

---

将显示传感器列的标题，但网格中没有列出任何数据。我哪里错了？

很显然，你需要一个额外的装订，正如其他人指出的那样。我不知道为什么，但它做得很好

// loading xml for grid
XmlDocument doc = new XmlDocument();
doc.Load(_file_location_); // (it does find the xml)

// setting the xml provider
XmlDataProvider _xmlDataProvider = new XmlDataProvider();
_xmlDataProvider.Document = doc;
_xmlDataProvider.XPath = @"/ShipData/Draught/Sensor";

// Setting the datacontext (updated code)
Binding binding = new Binding();
binding.Source = _xmlDataProvider;
MDataGrid.SetBinding(DataGrid.ItemsSourceProperty, binding);

// Creating the column Sensor (as an example) and create a new binding for xpath
var dataGridTextColumn = new DataGridTextColumn();

Binding bindingSensor = new Binding();
bindingSensor.XPath = "@Name";
dataGridTextColumn.Binding = bindingSensor;

dataGridTextColumn.Header = "Sensor";

// other repeating columns (bis+man ...) omitted for this example

// adding the column to the datagrid
MDataGrid.Columns.Add(dataGridTextColumn);

它也适用于我想要添加的列（使用动态调整的XPath代码）

归功于：Magnus（MM8），正如您在回答中所述，这并不是额外的。这确实是必须采取的步骤。DataGrid显示提供给

ItemsSource

属性的数据，因此如果未设置

ItemsSource

，则不会显示任何数据。您可以在XAML中进行绑定，而不是在代码中手动设置

ItemsSource

绑定：

<DataGrid Name="MDataGrid" ItemsSource="{Binding}" AutoGenerateColumns="False">

---

谢谢你的回答。我错误地认为xmlProvider会提供所有需要的详细信息，比如ItemsSource，但似乎没有。

// loading xml for grid
XmlDocument doc = new XmlDocument();
doc.Load(_file_location_); // (it does find the xml)

// setting the xml provider
XmlDataProvider _xmlDataProvider = new XmlDataProvider();
_xmlDataProvider.Document = doc;
_xmlDataProvider.XPath = @"/ShipData/Draught/Sensor";

// Setting the datacontext (updated code)
Binding binding = new Binding();
binding.Source = _xmlDataProvider;
MDataGrid.SetBinding(DataGrid.ItemsSourceProperty, binding);

// Creating the column Sensor (as an example) and create a new binding for xpath
var dataGridTextColumn = new DataGridTextColumn();

Binding bindingSensor = new Binding();
bindingSensor.XPath = "@Name";
dataGridTextColumn.Binding = bindingSensor;

dataGridTextColumn.Header = "Sensor";

// other repeating columns (bis+man ...) omitted for this example

// adding the column to the datagrid
MDataGrid.Columns.Add(dataGridTextColumn);

<DataGrid Name="MDataGrid" ItemsSource="{Binding}" AutoGenerateColumns="False">

......
// Setting the datacontext for 
MDataGrid.DataContext = _xmlDataProvider; 
......