wpf 将对象转换为 List<String>
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Converting Object to List<String>
提问by Simsons
I am getting the List of selected Items from WPF Attached Behavioral for ListBox as below:
我从 WPF Attached Behavioral for ListBox 获取所选项目列表，如下所示：
private void ListBoxSelectionChanged(object param)
{
var selectedItems = param;
SelectedMItems = selectedItems.ToString().Split(',').ToList<string>();
//Console.WriteLine(selectedItems.ToString());
}
Though it works , is there any other better way.
虽然它有效，但有没有其他更好的方法。
回答by Kendall Frey
The SelectedItemsproperty is an IList, so I'm assuming your object is as well.
该SelectedItems属性是IList，所以我假设您的对象也是。
In this case, it would be simplest to do one of these two:
在这种情况下，最简单的方法是执行以下两项操作之一：
// If the list already contains strings
SelectedMItems = ((IList)selectedItems).Cast<string>().ToList();
// If the list contains other objects
SelectedMItems = ((IList)selectedItems).Cast<object>().Select(o => o.ToString()).ToList();
回答by Grant Thomas
Something like this might work, in order to be 'safer':
为了“更安全”，这样的事情可能会起作用：
var items = param as ObservableCollection<string>;
Or even just an enumerable:
或者甚至只是一个可枚举的：
var items = param as IEnumerable<string>;
Then you have a collection of items proper.
然后你有一个适当的项目集合。
