Datagrid未显示值WPF

Question

我有一个datagrid，它只在第一列中显示值，而其他单元格中有值。这是我的代码。

  <Grid ShowGridLines="False">


        <Grid.RowDefinitions>
            <RowDefinition Height="Auto" />
            <RowDefinition Height="Auto" />
            <RowDefinition Height="*"/>
        </Grid.RowDefinitions>
        <DataGrid  HorizontalAlignment="Left" VirtualizingStackPanel.IsVirtualizing="False" GridLinesVisibility="None" IsReadOnly="True"
          Name="AvdrEventsDataGrid" VerticalAlignment="Top"  Grid.Row="0" ItemsSource="{Binding}" Loaded="AvdrEventsDataGrid_Loaded" CanUserSortColumns="False">

            <DataGrid.Resources>
                <Style TargetType="{x:Type DataGridColumnHeader}">
                    <!--<Setter Property="Background" Value="Black" />
                    <Setter Property="Foreground" Value="White" />-->

                    <!--<Setter Property="FontFamily" Value="Wingdings" />-->
                    <Setter Property="FontSize" Value="12" />
                </Style>
            </DataGrid.Resources>

        </DataGrid>
        <Button Content="Run!" Height="23" HorizontalAlignment="Left" Name="btnRun" VerticalAlignment="Top" 
                Margin="20,0,0,0" Width="75" Grid.Row="1" Click="btnRun_Click"  />      



    </Grid>

  DataTable _resulTable=new DataTable();
  AvdrEventBuilder avdrEventBuilder=new AvdrEventBuilder();
            _resulTable = avdrEventBuilder.GetEventData();

            AvdrEventsDataGrid.DataContext = _resulTable;

此外，我正在更改第一列的颜色

int i = 0;
            foreach (var row in _resulTable.Rows)
            {
                var cell = AvdrEventsDataGrid.GetCell(i, 0);
                cell.Background = Brushes.Gray;
                cell.Foreground = Brushes.White;
                i++;
                cell.Width = 100;
            }

问题是我只能在第一列中看到值，即使其他数据集列中有值。我也试过AvdrEventsDataGrid.ItemsSource = @object;这使用了一组类对象。它显示相同的空白值。请帮忙。