python - 在数据网格内填充组合框

Question

我正在尝试填充 WPF 数据网格内的组合框。Xaml 就是这个

    <DataGrid x:Name="objects"  ItemsSource="{Binding}"  AutoGenerateColumns="False" HorizontalAlignment="Left" Height="91" Margin="96,56,0,0" VerticalAlignment="Top" Width="260" SelectionChanged="DataGrid_SelectionChanged" RenderTransformOrigin="0.581,0.499">
        <DataGrid.Columns>
            <DataGridTextColumn Header="Object Name" Binding="{Binding objName}" ClipboardContentBinding="{x:Null}"/>
            <DataGridComboBoxColumn x:Name="dataGridComboBoxColumn"  Header="Material" ClipboardContentBinding="{x:Null}" ItemsSource="{Binding Items, RelativeSource={RelativeSource AncestorType=Window}}" SelectedValuePath="{Binding Path=SelectedAwaitingItem, Mode=TwoWay}" Width="Auto" TextBinding="{x:Null}"/>
        </DataGrid.Columns>

    </DataGrid>   

代码是

class objects(object):
  def __init__(self, objName,Items):
      self.objName = objName
      self.SelectedAwaitingItem = ""
      self.Items = Items    


    gridUnknownDocs = LogicalTreeHelper.FindLogicalNode(self, 'objects')
    item = []
    politetitles = {
    1 : ('Mr' ), 
    2 : ('Ms'),
    3 : ('Mrs'), 
    4 : ('Sir'),
    }


    item.append(objects("Cube",["3" "2"]))
    item.append(objects("Square",["1" "2"]))
    gridUnknownDocs.ItemsSource = item

我可以看到文本框已正确填充(使用立方体和平方值)，但组合框始终显示为空对我所缺少的有什么建议吗？谢谢最大

Answer 1

任何以路径结尾的属性都需要一个字符串，该字符串是属性的名称。您有选定值路径的绑定(bind)。我不遵循项目实际包含的内容，但您需要告诉它哪个属性是值以及要显示哪个属性。 https://social.technet.microsoft.com/wiki/contents/articles/26347.wpf-combobox-binding-in-datagrid.aspx