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通过DataTemplate实现可编辑的ListBox项后,不会更新ListBox.ItemsSource

listbox wpf c#

Nicolas · 技术社区 · 6 年前

我实现了可编辑 ListBox 像这样的项目是张贴在这个答案 Inline editing TextBlock in a ListBox with Data Template (WPF)

但新值不会在 ItemsSource

这是XAML:

<ListBox Grid.Row="2" Name="ds_ConfigProfiles" ItemsSource="{Binding ConfigProfiles}" SelectedItem="{Binding ActiveConfigProfile}" IsSynchronizedWithCurrentItem="True" Panel.ZIndex="-1">
    <ListBox.ItemTemplate>
        <DataTemplate>
            <!-- TODO: this is meant for allowing edit of the profile names, but the new name does not get stored back to ConfigProfiles -->
            <local:TextToggleEdit Text="{Binding Path=., Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}" MinWidth="40" Height="23" />
        </DataTemplate>
    </ListBox.ItemTemplate>
</ListBox>

这就是 ConfigProfiles 视图模型中的属性:

/// <summary>Configuration profiles that were found in the active storage path</summary>
public ObservableCollection<string> ConfigProfiles { get; private set; } = new ObservableCollection<string>();

我理解错什么了吗?

可能是因为项目源的类型是 ObservableCollection<string> 而不是 ObservableCollection<ProperClassImplementation>