WPF：应用值转换器后如何获取SelectedItem？

我可以控制绑定图像的位置。“我的视图”模型中的代码如下所示：

public List<IDocument> SelectedEventPhotoList
{
    get { return _selectedEventPhotoList; }
    set
    {
        if (Equals(value, _selectedEventPhotoList))
            return;

        _selectedEventPhotoList = value;
        RaisePropertyChanged(() => SelectedEventPhotoList);
    }
}

public IDocument SelectedEventPhoto
{
    get { return _selectedEventPhoto; }
    set
    {
        if (Equals(value, _selectedEventPhoto))
            return;

        _selectedEventPhoto = value;
        RaisePropertyChanged(() => SelectedEventPhoto);
    }
}

<ListView Grid.Row="0"
            ItemsSource="{Binding SelectedEventPhotoList, Converter={StaticResource PathToFileConverter}}"
            SelectedItem="{Binding SelectedEventPhoto}"

public List SelectedEventPhotoList
{
获取{return\u selectedEventPhotoList；}
设置
{
如果（等于（值，\ u选择EventPhotoList））
返回；
_selectedEventPhotoList=值；
RaiseProperty已更改（（）=>SelectedEventPhotoList）；
}
}
公共I文档已选择Eventphoto
{
获取{return\u selectedEventPhoto；}
设置
{
如果（等于（值，_selectedEventPhoto））
返回；
_选择Eventphoto=值；
RaisePropertyChanged（（）=>SelectedEventPhoto）；
}
}

绑定如下所示：

public List<IDocument> SelectedEventPhotoList
{
    get { return _selectedEventPhotoList; }
    set
    {
        if (Equals(value, _selectedEventPhotoList))
            return;

        _selectedEventPhotoList = value;
        RaisePropertyChanged(() => SelectedEventPhotoList);
    }
}

public IDocument SelectedEventPhoto
{
    get { return _selectedEventPhoto; }
    set
    {
        if (Equals(value, _selectedEventPhoto))
            return;

        _selectedEventPhoto = value;
        RaisePropertyChanged(() => SelectedEventPhoto);
    }
}

<ListView Grid.Row="0"
            ItemsSource="{Binding SelectedEventPhotoList, Converter={StaticResource PathToFileConverter}}"
            SelectedItem="{Binding SelectedEventPhoto}"

---

您应该将转换器应用于
图像的
源
属性绑定，而不是
列表视图的
项源

绑定到
列表视图的
SelectedItem
属性的属性类型应始终为
T
，如果
ItemsSource
属性被绑定或设置为
IEnumerable
，则应从ItemSource绑定中删除转换器，并添加DisplayMemberPath=“PathOfFileProperty”，哪个“PathOfFileProperty”是IDocument上的字符串属性，指示文件路径
为什么要将ItemsSource转换为其他类型？这毫无意义，因为IDocument不是图像源属性的正确类型。另一方面，我需要SelectedItem为IDocument类型。您应该将转换器应用于源属性绑定，而不是ListView的ItemsSource。如果您将建议作为常规答案编写，我会将其标记为有用。谢谢