wpf - WPF：使用命令从PreviewMouseLeftButtonDown事件中的ListViewIndex(WPF: ListViewIndex from PreviewMouseLeftButtonDown event using command)

Question

I want to get index of ListViewIndex from PreviewMouseLeftButtonDown event using command:

(我想使用命令从PreviewMouseLeftButtonDown事件获取ListViewIndex索引：)

<ListView Name="ListViewFiles">
    <i:Interaction.Triggers>
        <i:EventTrigger EventName="PreviewMouseLeftButtonDown">
            <i:InvokeCommandAction Command="{Binding ListViewItemMouseLeftButtonDownCommand}"
                                   CommandParameter="{Binding ElementName=ListViewFiles, Path=SelectedItem}"/>
        </i:EventTrigger>
    </i:Interaction.Triggers>
</ListView>

Code:

(码：)

Here i have my ListView and i cannot find a way to get my ListViewItem index or object.

(在这里，我有我的ListView ，但找不到找到ListViewItem索引或对象的方法。)

I try SelectedItem but its null

(我尝试了SelectedItem但它为null)

public void Execute(object parameter)
{
    var listView = parameter as ListView;
}

  ask by falukky translate from so

Answer 1

等待大神答复