如何使用 VBA 处理 Microsoft Access 表单中的附件字段？

Question

I build a form where users can create a new record and fill the fields. One of those fields is the attachment field. Before they can save the record, I want to check wether they filled in all mandatory fields, the attachment beeing one of those. With all other fields, it works like this:

        If IsNull(date_of_useage) Then
            MsgBox "Please fill in the date!", vbExclamation
            Exit Sub
        End If

This does not work für the attachment field, addressing it by its name "attachment". How can I check, if the user did or did not attach a file? IsEmpty didnt work either.

Answer 1

找到解决方案：

If Attachment.Attachmentcount = 0 Then [...]