在wpf datagrid中键入所选项目的列表 [英] Type list of selected items in a wpf datagrid
问题描述
当选择更改(每个项目是X类)时,我将所选项目发送到特定命令。
I send the selected items to a specific command when the selection changes (each item is a class X)
我将它们作为对象,将其转换为一个列表?
I get them as object how can I convert it to a list?
我试过:
1. IList<x> SelectedItemsList = obj as ObservableCollection<x>;
2. IList<x> SelectedItemsList = obj as IList<x>;
3. List<x> SelectedItemsList = obj as List<x>;
没有帮助。
列表类型: System.Windows.Controls.SelectedItemCollection
我想将其转换为我的列表: ObservableCollection< x> / IList< x> / List< ; x>
(ViewModel未识别wpf的控件列表)
This type of list: System.Windows.Controls.SelectedItemCollection
I want to convert it to my list: ObservableCollection<x>/IList<x>/List<x>
(the ViewModel not recognized a list of controls of wpf)
推荐答案
SelectedItems
属性是非通用的 IList 。您不能简单地将其转换为通用的 IList< T> 。
The type of the SelectedItems
property is the non-generic IList. You can't simply cast that to the generic IList<T>.
然而,您可以使用 LINQ 获取 IEnumerable< x>
或列表< x>
。
You could however use LINQ to get an IEnumerable<x>
or a List<x>
.
using System.Linq;
IList list = obj as IList;
IEnumerable<x> SelectedItemsList = list.Cast<x>();
// or
List<x> SelectedItemsList = list.Cast<x>().ToList();
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