wpf - 如何在ListView中显示行号？

Question

显而易见的解决方案是在ModelView元素上具有行号属性，但是缺点是在添加记录或更改排序顺序时必须重新生成那些属性。

是否有优雅解决方案？

Answer 1

我认为您有一个优雅的解决方案，但这是可行的。

XAML:

<ListView Name="listviewNames">
  <ListView.View>
    <GridView>
      <GridView.Columns>
        <GridViewColumn
          Header="Number"
          DisplayMemberBinding="{Binding RelativeSource={RelativeSource FindAncestor, 
                                         AncestorType={x:Type ListViewItem}}, 
                                         Converter={StaticResource IndexConverter}}" />
        <GridViewColumn
          Header="Name"
          DisplayMemberBinding="{Binding Path=Name}" />
      </GridView.Columns>
    </GridView>
  </ListView.View>
</ListView>

值转换器:

public class IndexConverter : IValueConverter
{
    public object Convert(object value, Type TargetType, object parameter, CultureInfo culture)
    {
        ListViewItem item = (ListViewItem) value;
        ListView listView = ItemsControl.ItemsControlFromItemContainer(item) as ListView;
        int index = listView.ItemContainerGenerator.IndexFromContainer(item);
        return index.ToString();
    }

    public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture)
    {
        throw new NotImplementedException();
    }
}