vba - 将收件箱 + 子文件夹中的所有 email.Items 相加

Question

下午好，

我正在通过 Table 对象填充来自收件箱 + 子文件夹的所有电子邮件的列表框。这工作正常。

然后，通过Doubleclick来自 的事件ListBox1，我试图打开被选中的电子邮件。如果循环仅通过收件箱文件夹，则它是正确的。但是当我试图从收件箱中循环子文件夹时，它不会去。所以我试图将收件箱+子文件夹中的所有电子邮件收集（总和）在一个：

Set InboxItems = SubFolder.Items

但是offcorse它不起作用。可以做什么？

我的代码：

Option Explicit

    Private Sub ListBox1_DblClick(ByVal Cancel As MSForms.ReturnBoolean)
    
        Dim objNS As Outlook.namespace: Set objNS = GetNamespace("MAPI")
        Dim oFolder As Outlook.MAPIFolder: Set oFolder = objNS.GetDefaultFolder(olFolderInbox)
    
    
        Dim i As Long
        Dim j As Long
        Dim InboxItems As Outlook.Items
        
        Dim thisEmail As Outlook.MailItem
        Dim SubFolder As Outlook.MAPIFolder
        Dim myArray() As String
        
        
        
        Dim Folders         As New Collection
        Dim entryID         As New Collection
        Dim StoreID         As New Collection
    
    
        Call GetFolder(Folders, entryID, StoreID, oFolder)
        myArray = ConvertToArray(indexEmailInbox)
        
        For j = 1 To Folders.Count
            Set SubFolder = Application.Session.GetFolderFromID(entryID(j), StoreID(j))
            Set InboxItems = SubFolder.Items
        Next
        
         
    
    
            For i = LBound(myArray) To UBound(myArray)
                If Me.ListBox1.Selected(i) = True Then
                    If TypeName(InboxItems.Item(onlyDigits(myArray(i)))) = "MailItem" Then ' it's an email
    
                        'MsgBox onlyDigits(myArray(UBound(myArray) - i - 1))
                        Set thisEmail = InboxItems.Item(onlyDigits(myArray(UBound(myArray) - i - 1)))
                        Unload Me
                        thisEmail.Display
                        Exit Sub
                    End If
                End If
            Next i
        
    
    End Sub


Function ConvertToArray(ByVal value As String)
    value = StrConv(value, vbUnicode)
    ConvertToArray = Split(Left(value, Len(value) - 1), "§")
End Function

Sub GetFolder(folders As Collection, entryID As Collection, StoreID As Collection, fld As MAPIFolder)

Dim SubFolder       As MAPIFolder

    folders.Add fld.FolderPath
    entryID.Add fld.entryID
    StoreID.Add fld.StoreID
    For Each SubFolder In fld.folders
        GetFolder folders, entryID, StoreID, SubFolder
    Next SubFolder
    
ExitSub:

    Set SubFolder = Nothing

End Sub

标签： vbaoutlooklistbox

Answer 1

You may .Add items to a collection one at a time.

Option Explicit ' Consider this mandatory
' Tools | Options | Editor tab
' Require Variable Declaration
' If desperate declare as Variant

Private Sub collection_Emails_Folder_And_Subfolders()
    
    Dim objFolder As folder
    Dim myItemsCol As New Collection
    Dim i As Long
    
    Dim myItems As Items
    
    Set objFolder = Session.PickFolder
    
    If objFolder Is Nothing Then
        Exit Sub
    End If
    
    'Set objFolder = Session.GetDefaultFolder(olFolderInbox)
    
    processFolder objFolder, myItemsCol
    
    ' Methods available are limited to:
    '  Add, Count, Item and Remove
    Debug.Print vbCr & "Final total - myItemsCol.Count: " & myItemsCol.Count
    
    ' You may access item properties
    For i = 1 To myItemsCol.Count
        Debug.Print " " & i & ": " & myItemsCol(i).ReceivedTime, myItemsCol(i).subject
    Next i
    
End Sub


Private Sub processFolder(ByVal objFolder As folder, ByVal myItemsCol As Collection)

    ' https://stackoverflow.com/questions/2272361/can-i-iterate-through-all-outlook-emails-in-a-folder-including-sub-folders

    Dim EmailCount As Long
    
    Dim myItem As Object
    Dim myItems As Items
    
    Dim i As Long
    
    Dim oFolder As folder
    
    Debug.Print vbCr & "objFolder: " & objFolder
    
    EmailCount = objFolder.Items.Count
    Debug.Print " EmailCount...: " & EmailCount
    
    If EmailCount > 0 Then
        
        Set myItems = objFolder.Items
        myItems.Sort "[ReceivedTime]", False ' oldest to newest
        
        For i = 1 To myItems.Count
            'Debug.Print " " & i & ": " & myItems(i).ReceivedTime, myItems(i).subject
            myItemsCol.Add myItems(i)
        Next
                
    End If
    
    Debug.Print " Running total: " & myItemsCol.Count
    
    If (objFolder.Folders.Count > 0) Then
        For Each oFolder In objFolder.Folders
            processFolder oFolder, myItemsCol
        Next
    End If
        
End Sub

You should be able to replace InboxItems with myItemsCol.

If TypeName(myItemsCol.Item((onlyDigits(myArray(i)))) = "MailItem" Then ' it's an email

Set thisEmail = myItemsCol.Item(onlyDigits(myArray(UBound(myArray) - i - 1)))