Visio / VBA – Combine many Visio documents into one

Modify the array then execute as a macro!


  1. Snag a list of your Visio items in Powershell:
    ls | select "FullName"
  2. Make the array (roughly) in Word by replacing


    ", _^p "

    You might get “too many line continuations”, just put a few files on the same line (removing the underscore).

  3. Add them to the array in this macro and use it in a new Visio document:
Private Sub TryMergeDocs()
    Dim Docs() As Variant
    Docs = Array("C:\Users\Mathew\Desktop\visio1.vsdx", "C:\Users\Mathew\Desktop\visio2.vsdx")
    MergeDocuments Docs
End Sub

Sub MergeDocuments(FileNames() As Variant, Optional DestDoc As Visio.Document)
    ' merge into a new document if no document is provided
    On Error GoTo PROC_ERR
    If DestDoc Is Nothing Then
        Set DestDoc = Application.Documents.Add("")
    End If

    Dim CheckPage As Visio.Page
    Dim PagesToDelete As New Collection
    For Each CheckPage In DestDoc.Pages
        PagesToDelete.Add CheckPage
    Next CheckPage
    Set CheckPage = Nothing

    ' loop through the FileNames array and open each one, and copy each page into destdoc
    Dim CurrFileName As String
    Dim CurrDoc As Visio.Document
    Dim CurrPage As Visio.Page, CurrDestPage As Visio.Page
    Dim CheckNum As Long
    Dim ArrIdx As Long
    For ArrIdx = LBound(FileNames) To UBound(FileNames)
        CurrFileName = CStr(FileNames(ArrIdx))
        Set CurrDoc = Application.Documents.OpenEx(CurrFileName, visOpenRO)
        For Each CurrPage In CurrDoc.Pages
            Set CurrDestPage = DestDoc.Pages.Add()
            With CurrDestPage
                On Error Resume Next
                Set CheckPage = DestDoc.Pages(CurrPage.Name)
                If Not CheckPage Is Nothing Then
                    While Not CheckPage Is Nothing ' handle duplicate names by putting (#) after the original name
                        CheckNum = CheckNum + 1
                        Set CheckPage = Nothing
                        Set CheckPage = DestDoc.Pages(CurrPage.Name & "(" & CStr(CheckNum) & ")")
                    CurrDestPage.Name = CurrPage.Name & "(" & CStr(CheckNum) & ")"
                    CurrDestPage.Name = CurrPage.Name
                End If
                On Error GoTo PROC_ERR
                Set CheckPage = Nothing
                CheckNum = 0

                ' copy the page contents over
                CopyPage CurrPage, CurrDestPage
                SetBackground CurrPage, CurrDestPage

            End With

        Next CurrPage
        Application.AlertResponse = 7

    Next ArrIdx

    For Each CheckPage In PagesToDelete
        CheckPage.Delete 0
    Next CheckPage

    Application.AlertResponse = 0
    Exit Sub

    MsgBox Err.Number & vbCr & Err.Description
End Sub

Sub CopyPage(CopyPage As Visio.Page, DestPage As Visio.Page)
    Dim TheSelection As Visio.Selection
    Dim CurrShp As Visio.Shape

    DestPage.PageSheet.CellsSRC(visSectionObject, visRowPage, visPageHeight).Formula = CopyPage.PageSheet.CellsSRC(visSectionObject, visRowPage, visPageHeight).ResultIU
    DestPage.PageSheet.CellsSRC(visSectionObject, visRowPage, visPageWidth).Formula = CopyPage.PageSheet.CellsSRC(visSectionObject, visRowPage, visPageWidth).ResultIU
    DestPage.Background = CopyPage.Background

    Set TheSelection = Visio.ActiveWindow.Selection

    For Each CurrShp In CopyPage.Shapes
        TheSelection.Select CurrShp, visSelect

    TheSelection.Copy visCopyPasteNoTranslate
    DestPage.Paste visCopyPasteNoTranslate

End Sub

Sub SetBackground(CopyPage As Visio.Page, DestPage As Visio.Page)
   If Not CopyPage.BackPage Is Nothing Then
       DestPage.BackPage = CopyPage.BackPage.Name
   End If
End Sub


Leave a Reply

Your email address will not be published. Required fields are marked *