我已经尝试了一切但一无所获，所以我希望有人能给我一个顿悟的时刻。 我根本无法获得绑定来成功提取数据网格中的数据。
我有一个包含 MyDataType 的多列的 DataTable
public class MyData
{
string nameData {get;set;}
bool showData {get;set;}
}
MyDataType 有 2 个属性（一个字符串，一个布尔值） 我创建了一个测试数据表
DataTable GetDummyData()
{
DataTable dt = new DataTable("Foo");
dt.Columns.Add(new DataColumn("AnotherColumn", typeof(MyData)));
dt.Rows.Add(new MyData("Row1C1", true));
dt.Rows.Add(new MyData("Row2C1", false));
dt.AcceptChanges();
return dt;
}
我有一个 WPF DataGrid，我想显示我的数据表。 但我想要做的就是更改每个单元格的呈现方式，以显示每个单元格的 [TextBlock][Button] 以及绑定到 MyData 对象的值，这就是我遇到很多麻烦的地方。
我的 XAML 看起来像这样
<Window.Resources>
<ResourceDictionary>
<DataTemplate x:Key="MyDataTemplate" DataType="MyData">
<StackPanel Orientation="Horizontal" >
<Button Background="Green" HorizontalAlignment="Right" VerticalAlignment="Center" Margin="5,0,0,0" Content="{Binding Path=nameData}"></Button>
<TextBlock Background="Green" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="5,0,0,0" Text="{Binding Path=nameData}"></TextBlock>
</StackPanel>
</DataTemplate>
</ResourceDictionary>
</Window.Resources>
<Grid>
<dg:DataGrid Grid.Row="1" ItemsSource="{Binding}" AutoGenerateColumns="True"
x:Name="dataGrid1" SelectionMode="Single" CanUserAddRows="False"
CanUserSortColumns="true" CanUserDeleteRows="False" AlternatingRowBackground="AliceBlue"
AutoGeneratingColumn="dataGrid1_AutoGeneratingColumn" />
</Grid>
现在加载后我所做的就是尝试将 DataTable 绑定到 WPF DataGrid
dt = GetDummyData();
dataGrid1.ItemsSource = dt.DefaultView;
TextBlock 和 Button 显示，但它们没有绑定，这使得它们为空。 如果有人知道如何解决这个问题，可以告诉我吗？ 这应该很简单，这就是微软让我们相信的。 我在
Column.CellTemplateAutoGenerating请帮忙！！！
编辑：更新以反映 Aran Mulholland 的输入（参见评论）
显然
DataGridDataRowViewDataTemplateDataContextMyDataDataRowViewDataContextDataGridTemplateColumnDataRowView
<Window x:Class="DataGridTemplateColumnSample.Window1"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:dg="clr-namespace:Microsoft.Windows.Controls;assembly=WPFToolkit"
Title="Window1" Height="300" Width="300">
<Window.Resources>
<ResourceDictionary>
<DataTemplate x:Key="MyDataTemplate" DataType="DataRowView">
<StackPanel Orientation="Horizontal">
<Button Background="Green" HorizontalAlignment="Right" VerticalAlignment="Center" Margin="5,0,0,0" Content="{Binding Path=nameData}"></Button>
<TextBlock Background="Green" HorizontalAlignment="Center" VerticalAlignment="Center" Margin="5,0,0,0" Text="{Binding Path=nameData}"></TextBlock>
</StackPanel>
</DataTemplate>
</ResourceDictionary>
</Window.Resources>
<Grid>
<dg:DataGrid Grid.Row="1" AutoGenerateColumns="True" x:Name="dataGrid1" SelectionMode="Single"
CanUserAddRows="False" CanUserSortColumns="true" CanUserDeleteRows="False"
AlternatingRowBackground="AliceBlue" AutoGeneratingColumn="dataGrid1_AutoGeneratingColumn"
ItemsSource="{Binding}" VirtualizingStackPanel.VirtualizationMode="Standard" />
</Grid>
</Window>
using System.Data;
using System.Windows;
using Microsoft.Windows.Controls;
namespace DataGridTemplateColumnSample
{
public partial class Window1
{
public Window1()
{
InitializeComponent();
DataContext = GetDummyData().DefaultView;
}
private static DataTable GetDummyData()
{
var dt = new DataTable("Foo");
dt.Columns.Add(new DataColumn("OneColumn", typeof(MyData)));
dt.Columns.Add(new DataColumn("AnotherColumn", typeof(MyData)));
dt.Rows.Add(new MyData("Row1C1", true), new MyData("Row1C2", true));
dt.Rows.Add(new MyData("Row2C1", false), new MyData("Row2C2", true));
dt.AcceptChanges();
return dt;
}
private void dataGrid1_AutoGeneratingColumn(object sender, DataGridAutoGeneratingColumnEventArgs e)
{
var column = new DataRowColumn(e.PropertyName);
column.Header = e.Column.Header;
column.CellTemplate = (DataTemplate)Resources["MyDataTemplate"];
e.Column = column;
}
}
public class DataRowColumn : DataGridTemplateColumn
{
public DataRowColumn(string column) { ColumnName = column; }
public string ColumnName { get; private set; }
protected override FrameworkElement GenerateElement(DataGridCell cell, object dataItem)
{
var row = (DataRowView) dataItem;
var item = row[ColumnName];
cell.DataContext = item;
var element = base.GenerateElement(cell, item);
return element;
}
}
public class MyData
{
public MyData(string name, bool data) { nameData = name; showData = data; }
public string nameData { get; set; }
public bool showData { get; set; }
}
}
private void dataGrid1_AutoGeneratingColumn(object sender, Microsoft.Windows.Controls.DataGridAutoGeneratingColumnEventArgs e)
{
if (e.PropertyType == typeof(MyData))
{
MyDataGridTemplateColumn col = new MyDataGridTemplateColumn();
col.ColumnName = e.PropertyName; // so it knows from which column to get MyData
col.CellTemplate = (DataTemplate)FindResource("MyDataTemplate");
e.Column = col;
e.Column.Header = e.PropertyName;
}
}
public class MyDataGridTemplateColumn : DataGridTemplateColumn
{
public string ColumnName
{
get;
set;
}
protected override System.Windows.FrameworkElement GenerateElement(DataGridCell cell, object dataItem)
{
// The DataGridTemplateColumn uses ContentPresenter with your DataTemplate.
ContentPresenter cp = (ContentPresenter)base.GenerateElement(cell, dataItem);
// Reset the Binding to the specific column. The default binding is to the DataRowView.
BindingOperations.SetBinding(cp, ContentPresenter.ContentProperty, new Binding(this.ColumnName));
return cp;
}
}