c# – 如何从选定的ListViewItems中获取名称？

2023年9月20日 401次阅读

我有一个ListView,其数据绑定到TreeView,该TreeView被数据绑定到XmlDataProvider.在ListView中,您可以一次选择多个项目.我的问题是我需要知道选择了哪些项目.我怎样才能从ListViewItems中获取名称？

XAML：

<ListView x:Name="listViewCards" DataContext="{Binding ElementName=treeViewCategory, Path=SelectedItem}" ItemsSource="{Binding XPath=./card/title, UpdateSourceTrigger=PropertyChanged}" KeyDown="listViewCards_KeyDown" />

C#：

private void listViewCards_KeyDown(object sender, KeyEventArgs e)
{
    IList selectedListViewItems = listViewCards.SelectedItems;
    if (selectedListViewItems.Count > 1)
    {
        //delete all selected items from xml:
        foreach (XmlNode node in xmlNode.ChildNodes)
        {
            if (node.InnerText.Equals( ??? ))
            {
                //mark for deleting
            }
        }
    }
}

最佳答案

The objekt of type
“System.Windows.Controls.SelectedItemCollection”
can´t convert into
“System.Windows.Controls.ListViewItem”

试试这个：

private void listViewCards_KeyDown(object sender, KeyEventArgs e)
{
     IList selectedListViewItems = listViewCards.SelectedItems;
     if (selectedListViewItems.Count > 1)
     {
         //delete all selected items from xml:
         var collection = selectedListViewItems.Cast<XmlNode>();  //assuming your underlying data is XmlNode
         foreach(XmlNode node in collection)
         {
             //do whatever you want to do with node
             if (node.InnerText.Equals( ??? ))
             {
                 //mark for deleting
             }
         }
     }
}

相关：How to cast a System.Windows.Controls.SelectedItemCollection?

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