从按钮单击获取列表框项目索引 [英] Getting Listbox Item Index from Button Click

问题描述

所以我在Listbox ItemTemplate的DataTemplate中使用按钮.有什么想法可以从按钮单击中获取Listbox项的索引吗?我看不到抓住按钮的父母.

So I'm using a button in the DataTemplate of my Listbox ItemTemplate. Any ideas how I would grab the index of the item of the Listbox from the button click? I can't see to grab the button's parent.

<ListBox.ItemTemplate>
            <DataTemplate DataType="{x:Type local:Img}">
                <Button Click="lstButton_Click">...

推荐答案

     private void lstButton_Click(object sender, RoutedEventArgs e)
     {
                Button button = sender as Button;           
                int index = _myListBoxName.Items.IndexOf(button.DataContext);
//or try this
                index = _myListBoxName.ItemContainerGenerator.IndexFromContainer(button.DataContext);
     }

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