用枚举数组绑定对象列表？在datagrid WPF Xaml中

Question

我想将包含第5个对象属性中的enum（website？[]）数组的对象列表绑定到数据网格中

这是我的xaml代码：

<DataGrid x:Name="dataGrid" AutoGenerateColumns="False" IsReadOnly="True" FontFamily="Lucida Bright" FontSize="30" LoadingRow="dataGrid_LoadingRow" >
        <DataGrid.Columns>
            <DataGridTextColumn Header="Apartment id" Binding="{Binding appartId}" FontFamily="Corbel" FontSize="23" Width="auto"/>
            <DataGridTextColumn Header="City" Binding="{Binding place}" FontFamily="Corbel" FontSize="23" Width="auto"/>
            <DataGridTextColumn Header="Address" Binding="{Binding roomNb}" FontFamily="Corbel" FontSize="23" Width="*"/>
            <DataGridTextColumn Header="Rooms" Binding="{Binding city}" FontFamily="Corbel" FontSize="23" Width="auto"/>

            <DataGridTemplateColumn Header="Registered on">
                <DataGridTemplateColumn.CellTemplate>
                    <DataTemplate>
                        <TextBlock Text="{Binding}" 
                    </DataTemplate>
                </DataGridTemplateColumn.CellTemplate>
            </DataGridTemplateColumn>
        </DataGrid.Columns>
    </DataGrid>

我尝试使用datatemplatecolumn，但是我没有成功绑定第5个元素，该元素是可为空的枚举数组 我想在第五列中仅显示！= null的元素 例如：

       appartment id | city | adress   | rooms | websiteList
       465             paris  yello st.   4      airbnb
                                                 rental
                                                 holidaysletting
       47              tokyo  ki st.      8      rental

这是我的代码

 IEnumerable<BE.appartCl> ll;
    BL.Interface2 bl = BL.factoryBL.GetBL();

    public databaseP()
    {
        ll = bl.GetListApp();
        InitializeComponent();
        dataGrid.ItemsSource = ll;
    }

这是我的课程

public enum site { Airbnb, Holidaylettings, Booking, Homelidays, Homeaway, 
Sublet }
public class appartCl
{
    [XmlElement("appartId")]
    public int appartId { get; set; }
    [XmlElement("place")]
    public string place { get; set; }
    [XmlElement("roomNb")]
    public int roomNb { get; set; }
    [XmlElement("city")]
    public string city { get; set; }
    [XmlArray("siteSt")]
    public site?[] siteSt = new site?[10];
    [XmlArray("recSt")]
    public string[] recSt = new string[10];
    [XmlArray("dateIn")] 
    public List<string> dateIn { get; set; }
    [XmlArray("dateOut")]
    public List<string> dateOut { get; set; }

}