Linq从c#中的ListViewItemCollections中选择项目

Question

如何在C#中使用Linq从ListViewItemCollections中选择ListViewItem？

我尝试使用它,但它没有工作..

ListViewItemCollections lv = listview1.items;

var test = from xxx in lv where xxx.text = "data 1" select xxx;


test   <--- now has the listviewitem with "data 1" as string value..

Answer 1

要获取枚举器ListViewItem,必须转换ItemsListView 的集合:

IEnumerable<ListViewItem> lv = listview1.items.Cast<ListViewItem>();

然后,您可以使用LINQ:

 var test = from xxx in lv 
            where xxx.text = "data 1" 
            select xxx;

Answer 2

ListViewItemCollections lv = listview1.items;

var test = from ListViewItem xxx in lv where xxx.text == "data 1" select xxx;

要么

listview1.items.Cast<ListViewItem>().Where(i => i.text == "date 1");