来自List的WPF Set DataGrid-ItemSource不生成列

Question

这里我设置了ItemSource，

 customApplicationHome.dataGridViewCustomApplication.ItemsSource = applicationList;

然后自动生成列方法未触发

 private void dataGridViewCustomApplication_AutoGeneratingColumn(object sender, DataGridAutoGeneratingColumnEventArgs e)
    {
        e.Column.Header = Utils.Util.SplitCamelCase(e.Column.Header.ToString());
    }

和用于绑定上述方法的xaml是

<DataGrid x:Name="dataGridViewCustomApplication" 
    AlternationCount="2"
    HeadersVisibility="Column"
    Background="Transparent"
    BorderThickness="0"
    CanUserAddRows="False"
    IsReadOnly="True"
    ColumnWidth="*"
    HorizontalAlignment="Left"
    Margin="0,20,0,85"
    VerticalAlignment="Top"
    Width="{Binding Path=ActualWidth, RelativeSource={RelativeSource Mode=FindAncestor,AncestorType=Binding,AncestorLevel=1}}"
    Height="320"
    Grid.ColumnSpan="2"
    EnableRowVirtualization="False"
    AutoGeneratingColumn="dataGridViewCustomApplication_AutoGeneratingColumn" 
    Sorting="DataGrid_Sorting"
    LayoutUpdated="dataGrid_LayoutUpdated" 
    CopyingRowClipboardContent="DataGrid_CopyingRowClipboardContent" />

另请注意，我用作ItemSource的列表在其他数据网格中工作正常。