DataGrid 未显示数据表中的数据

Question

所以我已经使用wpf 3天了，我无法弄清楚为什么数据表值没有显示在数据网格中，Windows窗体中的datagridview不是这种情况，我从10天开始就使用了它

我尝试过编程和 xaml 绑定，但它们都不适合我

首先，我创建了数据网格作为单独的用户控件，并将文件附加到主窗口，但无法看到数据，所以我想如果数据显示在 mainwinow 本身中，也许我应该进行测试，然后我将数据网格分成它自己的用户控件，但它们都不起作用

这是MainWindow.xaml

<Border> 
  <Grid>
       <Border Grid.Row="1" CornerRadius="20" Margin="15,0,15,15" >
                <!-- Apply Style with Rounded Corners to DataGrid -->
                <DataGrid 
                        IsReadOnly="True"
                        x:Name="dataGrid"
                        AutoGenerateColumns="False">
                    <DataGrid.Resources>
                        <!-- Cell Background -->
                        <SolidColorBrush x:Key="{x:Static SystemColors.ControlBrushKey}" Color="#121212"/>
                        <!-- Cell Foreground (Text) -->
                        <SolidColorBrush x:Key="{x:Static SystemColors.ControlTextBrushKey}" Color="#FFFFFF"/>
                        <!-- Grid Lines -->
                        <SolidColorBrush x:Key="{x:Static SystemColors.InactiveBorderBrushKey}" Color="#1E1E1E"/>
                        <!-- Header Background -->
                        <SolidColorBrush x:Key="{x:Static SystemColors.ControlDarkDarkBrushKey}" Color="#2E2E2E"/>
                        <!-- Header Foreground (Text) -->
                        <SolidColorBrush x:Key="{x:Static SystemColors.ControlLightLightBrushKey}" Color="#FFFFFF"/>
                    </DataGrid.Resources>
                    <DataGrid.Style>
                        <Style TargetType="DataGrid">
                            <Setter Property="Template">
                                <Setter.Value>
                                    <ControlTemplate TargetType="{x:Type DataGrid}">
                                        <Border Background="{TemplateBinding Background}" CornerRadius="20">
                                            <ScrollViewer>
                                                <!-- ContentPresenter displays the actual DataGrid content -->
                                                <ContentPresenter/>
                                            </ScrollViewer>
                                        </Border>
                                    </ControlTemplate>
                                </Setter.Value>
                            </Setter>
                        </Style>
                    </DataGrid.Style>
                </DataGrid>
            </Border>
  </Grid>
</Border>

这是MainWindow.xaml.cs

 public partial class MainWindow : Window
    {
        private DataTable dataTable;
        public MainWindow()
        {
            InitializeComponent();
            InitializeDataGridAsync();


        }

        private async void InitializeDataGridAsync()
        {
            var newDT = CreateDataTable();
            

            // Simulate a delay for loading data (replace this with your actual data loading logic)
            await Task.Delay(3000);

            // Set the DataTable as the DataGrid's ItemsSource
            dataGrid.ItemsSource = newDT.DefaultView;

        }

        private DataTable CreateDataTable()
        {
          
        // Create a DataTable with columns
        dataTable = new DataTable("MyDataTable");

            // Add 10 sample columns
            for (int i = 1; i <= 100; i++)
            {
                dataTable.Columns.Add($"Column{i}", typeof(int));
            }

            // Add 100 rows of sample data
            for (int row = 1; row <= 100; row++)
            {
                // Create an array to hold values for each column
                object[] values = new object[100];

                // Assign sample values to each column
                for (int col = 0; col < 100; col++)
                {
                    values[col] = row * 100 + col + 1; // You can change this to your desired data
                }

                // Add the row to the DataTable
                dataTable.Rows.Add(values);
            }
            return dataTable;
        }

    }

这是 refrecne 的屏幕截图，第一个灰卡是数据网格所在的位置