1. 您可以使用一些额外的上传器(例如 jQuery 多文件上传器)(我更喜欢这种方式，我更喜欢不使用 MS Ajax)

2. 使用:

1. You can use some additional uploaders (e.g. jQuery multiple file uploader) (I prefer this way and I prefer not to use MS Ajax)

2. Use:

AjaxHelper.BeginForm("Post", "Entries", new {id=ViewData.Model.MemberDetermination.DeterminationMemberID}, new AjaxOptions(){/*some options*/}, new {enctype="multipart/form-data"})

但在第二种情况下，我不确定它会起作用.

But in second case I'm not sure that it will work.