Question

for (int x = added_signals_listbox.SelectedItems.Count - 1; x >= 0; x--)
      {
        SignalViewModel SelectedItem = added_signals_listbox.SelectedItems[x] as SignalViewModel;
        int SelectedItemIndex = added_signals_listbox.Items.IndexOf(SelectedItem);
        //ListBoxItem container = added_signals_listbox.SelectedItems.Item.ContainerFromItem(SelectedItem) as ListBoxItem;
        //int SelectedItemIndex = added_signals_listbox.ItemContainerGenerator.IndexFromContainer(container);
        _GraphViewerViewModel.AddedSignals.RemoveAt(SelectedItemIndex);
      }

评论的代码没有运行，我不记得我昨天要问的是什么。抱歉这个糟糕的问题。我想我必须复制并粘贴错误的代码。请关闭这个问题。

Answer 1

实例列表框

 <ListBox Name="listbox" SelectionChanged="changed" SelectionMode="Multiple">
        <ListBox.Items>
            <ListBoxItem>one</ListBoxItem>
            <ListBoxItem>two</ListBoxItem>
        </ListBox.Items>
    </ListBox>   

 private void changed(object sender, System.Windows.Controls.SelectionChangedEventArgs e)
    {
        for (int index = 0; index < listbox.SelectedItems.Count; index++)
            listbox.Items.Remove(listbox.SelectedItems[index]);
    }

当您选择任何项目时，它会立即被删除，那是您想要获得的吗？

WPF如何获取ListBOx的选定指数

1 个答案: