UWP Listview 多选

最近在做一个项目的时候，用到了Listview，需要选择一个item，来进行删除。

但是当开启了

PullToRefreshListViewControl.IsMultiSelectCheckBoxEnabled = true;
PullToRefreshListViewControl.SelectionMode = ListViewSelectionMode.Multiple;

点击Item还是进入了Listview的Click事件。。。。。。

这里我们就需要用到一个小技巧了，顶一个一个全局变量 bool bMultiSelect = false;

最终效果

在Click事件中，判断是不是多选即可。

现在在xaml中定义三个button，实际工作不需要这么多，我这方便说明演示

一个是开启多选模式，一个是取消多选模式，最后是删除事件

<Button Content="MultiSelect" Click="MultiSelectClick"/>
<Button Content="CancelMultiSelect" Click="CancelMultiSelectClick"/>
<Button Content="DeleteSelected" Click="DeleteSelectedClick"/>

对应的后台code

　　　　 private void MultiSelectClick(object sender, RoutedEventArgs e)
        {
            bMultiSelect = true;
            PullToRefreshListViewControl.IsMultiSelectCheckBoxEnabled = true;
            PullToRefreshListViewControl.SelectionMode = ListViewSelectionMode.Multiple;
        }

        private void CancelMultiSelectClick(object sender, RoutedEventArgs e)
        {
            bMultiSelect = false;
            PullToRefreshListViewControl.IsMultiSelectCheckBoxEnabled = false;
            PullToRefreshListViewControl.SelectionMode = ListViewSelectionMode.None;
        }

        private async void DeleteSelectedClick(object sender, RoutedEventArgs e)
        {
            if (PullToRefreshListViewControl.SelectedItems.Count == 0)
            {
                Debug.WriteLine("No items selected");
                return;
            }

            for (int i = PullToRefreshListViewControl.SelectedItems.Count - 1; i >= 0; i--)
            {
                FaceSet fs = PullToRefreshListViewControl.SelectedItems[i] as FaceSet;
                await FacePlusPlusHelper.DeletePersoninCloud(fs.FaceSetToken, fs.OuterId);
                SampleItems.Remove(fs);
            }

            if (SampleItems.Count == 0)
            {
                bMultiSelect = false;
                PullToRefreshListViewControl.IsMultiSelectCheckBoxEnabled = false;
                PullToRefreshListViewControl.SelectionMode = ListViewSelectionMode.None;
            }
        }

然后在Listview的点击事件中屏蔽一下即可

private async void PullToRefreshListViewControl_ItemClick(object sender, ItemClickEventArgs e)
{
　　if(bMultiSelect)
　　　　return;
   
　　//然后这里写单击item的代码咯
}

o, 对了，PullToRefreshListViewControl是Listview控件。