此视图中的第一个分类列不会按“类别”字段排序。使用“视图”菜单选择另一个分类视图。
What happened
You tried to categorize a document in a view that wasn't designed to let you use the Categorize dialog box.
What you can do
Press CTRL to keep the document or documents selected that you want to categorize, switch to another view, and try again. Views that let you use the Categorize dialog box are usually called something like By Category or All by Category.
You can also ask the application designer to redesign the view you were originally using.