ms-access - 如何在消息框中显示表单属性？

Question

我有以下代码，它应该循环遍历项目中的所有表单，并给出一个包含每个表单设置的消息框。我知道循环是正确的，因为我在其他地方使用了循环并且我只是复制了它。为什么消息框是空白的？

   For Each frm In CurrentProject.AllForms
         DoCmd.OpenForm frm.Name, acDesign

        mess = "Form: " & frm.Name & vbCrLf & " Allow Addition: " & CStr(frm.AllowAdditions) & vbCrLf & "Allow Deletions: " & CStr(frm.AllowDeletions) & vbCrLf & "     Allow Edit: " & CStr(frm.AllowEdits)
        MsgBox (mess)
        DoCmd.Close acForm, frm.Name, acSaveYes

  Next frm
  Set frm = Nothing

根据 Remou 的提示，我得到了以下结果:

  For Each frm In CurrentProject.AllForms
     DoCmd.OpenForm frm.Name, acDesign
    Set frm = Forms(frm.Name)
    mess = "Form: " & frm.Name & vbCrLf & " Allow Addition: " & CStr(frm.AllowAdditions) & vbCrLf & "Allow Deletions: " & CStr(frm.AllowDeletions) & vbCrLf & "     Allow Edit: " & CStr(frm.AllowEdits)
    MsgBox (mess)
        DoCmd.Close acForm, frm.Name, acSaveNo

  Next frm
  Set frm = Nothing

Answer 1

如果不打开表单，则无法 Access 表单属性。您只能将 Set 与对象一起使用，而不是与字符串一起使用。

参见Access 2010: Which form control fires a macro?

For Each f In CurrentProject.AllForms
    DoCmd.OpenForm f.Name, acDesign

    Set frm = Forms(f.Name)
    mess = "Form: " & frm.Name & vbCrLf
    mess = mess & " Allow Addition: " & CStr(frm.AllowAdditions) & vbCrLf
    mess = mess & "Allow Deletions: " & CStr(frm.AllowDeletions) & vbCrLf
    mess = mess & "     Allow Edit: " & CStr(frm.AllowEdits)
    MsgBox mess

    DoCmd.Close acForm, f.Name, acSaveNo
Next