案例，一个ListBox绑定后台实体链表：
界面显示三个模块，自定义模板实现：
顺序一般来说在C#的链表里从0开始，我这里想让其从1开始，使用了这种方法，可以传递顺序到后台命令。
<ListBox ItemContainerStyle="{StaticResource ActionItemStyle}" ItemsSource="{Binding OverallActions}" ScrollViewer.HorizontalScrollBarVisibility="Disabled"> <ListBox.ItemTemplate> <DataTemplate> <Border Margin="3" BorderThickness="1" CornerRadius="5"> <Grid> <Grid.ColumnDefinitions> <ColumnDefinition Width="*" /> <ColumnDefinition Width="Auto" /> <ColumnDefinition Width="Auto" /> </Grid.ColumnDefinitions> <!-- 显示配置信息 --> <StackPanel Grid.Column="0" Margin="10"> <TextBlock FontSize="14" FontWeight="Bold" Text="{Binding ActionDescription}" /> </StackPanel> <!-- 索引显示 --> <TextBlock Grid.Column="1" Margin="10" HorizontalAlignment="Center" VerticalAlignment="Center" FontSize="16" FontWeight="Bold" Text="{Binding RelativeSource={RelativeSource AncestorType={x:Type ListBoxItem}}, Converter={StaticResource IndexConverter}}" /> <!-- 操作按钮 --> <StackPanel Grid.Column="2" Margin="10" Orientation="Horizontal"> <!-- 主操作按钮 --> <Button Width="60" Height="30" Margin="0,0,5,0" Command="{Binding DataContext.ExecuteActionHandleModelCommand, RelativeSource={RelativeSource AncestorType={x:Type ListBox}}}" CommandParameter="{Binding RelativeSource={RelativeSource AncestorType={x:Type ListBoxItem}}, Converter={StaticResource IndexConverter}}" Content="执行" /> </StackPanel> </Grid> </Border> </DataTemplate> </ListBox.ItemTemplate> </ListBox>传递参数：
CommandParameter="{Binding RelativeSource={RelativeSource AncestorType={x:Type ListBoxItem}}, Converter={StaticResource IndexConverter}}"绑定索引的转换器：
public class ItemToIndexConverter : IValueConverter { // 单值转换（用于ListBoxItem/DataGridRow获取索引） public object Convert(object value, Type targetType, object parameter, CultureInfo culture) { if (value is ListBoxItem listBoxItem) { var listBox = ItemsControl.ItemsControlFromItemContainer(listBoxItem); if (listBox != null) { int index = listBox.ItemContainerGenerator.IndexFromContainer(listBoxItem); return index >= 0 ? (index + 1).ToString() : "N/A"; } } else if (value is DataGridRow dataGridRow) { var dataGrid = ItemsControl.ItemsControlFromItemContainer(dataGridRow); if (dataGrid != null) { int index = dataGrid.ItemContainerGenerator.IndexFromContainer(dataGridRow); return index >= 0 ? (index + 1).ToString() : "N/A"; } } return "N/A"; } public object ConvertBack(object value, Type targetType, object parameter, CultureInfo culture) { throw new NotImplementedException(); } }
