您需要选择所有三个值，然后将它们与空格一起添加，然后一次将它们全部添加到item.Add调用中.您还可以创建一个用于保存项目的类，并具有所有三个名称的属性，以及一个ToString方法，该方法返回格式化的名称，并使所有项目成为其中之一.

You need to select all three values then add them together with spaces and add them all at once in the items.Add call. You could also create a class that holds items, and has properties for all three names, and a ToString method that returns the formatted name, and make all of your items one of those.