依赖项属性（List< string>）类型不匹配和数据对象（ObservableCollection< string>）。



仍然不确定为什么组合框可以用这个并且我的控制权除非有内置的在转换器中用于组合框。

There is a mismatch between the dependency property (List<string>) type and the data object (ObservableCollection<string>).

Still not sure why the combobox was ok with this and my control wasn''t unless there is a built-in converter for the combobox.