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使用 VBA 循环浏览 Outlook 收件箱时出现间歇性错误。Next objOutlookMes​​g 行上出现类型不匹配。

注意：我想尽可能彻底，所以我包含了所有代码。滚动到底部以查看错误发生位置的简短片段。

Private Sub CheckInbox(strFolder As String, Title As String)

Dim objOutlook          As Outlook.Application
Dim objOutlookNS        As Outlook.Namespace
Dim objOutlookInbox     As Outlook.Folder
Dim objOutlookComp      As Outlook.Folder
Dim objOutlookMesg      As Outlook.MailItem
Dim Headers(1 To 20)    As String
Dim i                   As Integer

Headers(1) = "Division:"
Headers(2) = "Request:"
Headers(3) = "Exception Type:"
Headers(4) = "Owning Branch:"
Headers(5) = "CRM Opportunity#:"
Headers(6) = "Account Type:"
Headers(7) = "Created Date:"
Headers(8) = "Close Date:"
Headers(9) = "Created By:"
Headers(10) = "Account Number:"
Headers(11) = "Revenue Amount:"
Headers(12) = "Total Deposit Reported:"
Headers(13) = "Actual Total Deposits Received:"
Headers(14) = "Deposit Date:"
Headers(15) = "Deposit Source:"
Headers(16) = "Explanation:"
Headers(17) = "Shared Credit Branch:"
Headers(18) = "Shared Credit: Amount to Transfer:"
Headers(19) = "OptionsFirst: Deposit Date:"
Headers(20) = "OptionsFirst: Total Deposit:"

Set objOutlook = Outlook.Application
Set objOutlookNS = objOutlook.GetNamespace("MAPI")
Set objOutlookInbox = objOutlookNS.GetDefaultFolder(olFolderInbox)
Set objOutlookComp = objOutlookInbox.Folders(strFolder)

For Each objOutlookMesg In objOutlookInbox.Items
    objOutlookMesg.Display
    If Trim(objOutlookMesg.Subject) Like Title Then
        For i = 1 To 20
            WriteToExcel i, EmailTextExtraction(Headers(i), objOutlookMesg), 1
        Next i
        objOutlookMesg.Move objOutlookComp
    End If
Next objOutlookMesg

End Sub

Private Sub WriteToExcel(CollumnNDX As Integer, Data As String, WorksheetNDX As Integer)
'Writes data to first empty cell on the specified collumn in the specified workbook

Dim RowNDX              As Long

Do
    RowNDX = RowNDX + 1
Loop Until Worksheets(WorksheetNDX).Cells(RowNDX, CollumnNDX) = Empty

Worksheets(WorksheetNDX).Cells(RowNDX, CollumnNDX).Value = Data

End Sub

Private Function EmailTextExtraction(Field As String, Message As Outlook.MailItem) As String
'Obtains the data in a field of a text formatted email when the data
'in that field immediately follows the field and is immediately followed
'by a carriage return.

Dim Position1           As Long
Dim Position2           As Long
Dim Data                As String
Dim FieldLength         As Integer

FieldLength = Len(Field)
Position1 = InStr(1, Message.Body, Field, vbTextCompare) + FieldLength
Position2 = InStr(Position1, Message.Body, Chr(10), vbTextCompare)
'may need to use CHAR(13) depending on the carriage return
Data = Trim(Mid(Message.Body, Position1, Position2 - Position1))

EmailTextExtraction = Data

End Function

发生错误的代码的较短片段：

For Each objOutlookMesg In objOutlookInbox.Items
    objOutlookMesg.Display
    If Trim(objOutlookMesg.Subject) Like Title Then
        For i = 1 To 20
            WriteToExcel i, EmailTextExtraction(Headers(i), objOutlookMesg), 1
        Next i
        objOutlookMesg.Move objOutlookComp
    End If
Next objOutlookMesg  <<<< intermitent type mismatch error here

我认为该错误可能与邮件项的类别有关。现在正在寻找过滤器。

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1 回答 1

10

Outlook 文件夹具有默认对象类型（MailItem、AppointmentItem、ContactItem 等），但实际上可以保存任何项目类型。因此，您遇到了一个不是 MailItem 的项目，并且凭借 For Each 循环，尝试将其分配给 MailItem 类型的变量。

您需要使用通用对象循环并测试 TypeName。

Dim oItem As Object
Dim oMail As MailItem

For Each oItem In Application.GetNamespace("MAPI").GetDefaultFolder(olFolderInbox).Items
    If TypeName(oItem) = "MailItem" Then
        Set oMail = oItem

        'do stuff with omail
    End If
Next oItem
于 2013-09-09T16:12:49.123 回答