如果单元格为空，则获取数据函数返回/（斜线）

Question

我从已关闭的工作簿中的特定单元格获取数据，但如果单元格为空，我将获得空单元格。我需要改进获取数据功能，所以如果我要从中获取数据的单元格为空，则获取数据函数返回“/”或其他字符。

非常感谢！

Sub Recurse()
Dim FSO As New FileSystemObject
Dim myFolder As Scripting.Folder, mySubFolder As Scripting.Folder
Dim myFile As File
Dim sPath$: sPath = "C:\Users\Marek\Desktop\skuska\"
Dim R$
R = Join(Application.Transpose(Sheets("Sheet2").UsedRange), "|")
Set myFolder = FSO.GetFolder(sPath)
For Each mySubFolder In myFolder.SubFolders
For Each myFile In mySubFolder.Files
    DoEvents
    If Not (InStr(1, R, myFile.Path) > 0) Then
        GetData myFile, "Sheet1", "A1:A2",     Sheets("Sheet1").Range(Sheets(1).Cells(Sheet1.Cells(Rows.Count, 1).End(xlUp).Row + 1, 1), Sheets(1).Cells(Sheet1.Cells(Rows.Count, 1).End(xlUp).Row + 1, 1)), True, False
        GetData myFile, "Sheet1", "B1:B2", Sheets("Sheet1").Range(Sheets(1).Cells(Sheet1.Cells(Rows.Count, 2).End(xlUp).Row + 1, 2), Sheets(1).Cells(Sheet1.Cells(Rows.Count, 2).End(xlUp).Row + 1, 2)), True, False
        GetData myFile, "Sheet1", "C1:C2", Sheets("Sheet1").Range(Sheets(1).Cells(Sheet1.Cells(Rows.Count, 3).End(xlUp).Row + 1, 3), Sheets(1).Cells(Sheet1.Cells(Rows.Count, 3).End(xlUp).Row + 1, 3)), True, False
        Sheets("Sheet2").Cells(Sheets("Sheet2").UsedRange.Rows.Count + 1, 1).Value = myFile.Path
        R = R & myFile.Path & "|"
    End If
Next
Next
 Set FSO = Nothing
Set myFolder = Nothing
Set mySubFolder = Nothing
Set myFile = Nothing

结束子

Option Explicit


Public Sub GetData(SourceFile As Variant, SourceSheet As String, _
               SourceRange As String, TargetRange As Range, Header As Boolean,     UseHeaderRow As Boolean)
' 30-Dec-2007, working in Excel 2000-2007
Dim rsCon As Object
Dim rsData As Object
Dim szConnect As String
Dim szSQL As String
Dim lCount As Long

' Create the connection string.
If Header = False Then
    If Val(Application.Version) < 12 Then
        szConnect = "Provider=Microsoft.Jet.OLEDB.4.0;" & _
                    "Data Source=" & SourceFile & ";" & _
                    "Extended Properties=""Excel 8.0;HDR=No"";"
    Else
        szConnect = "Provider=Microsoft.ACE.OLEDB.12.0;" & _
                    "Data Source=" & SourceFile & ";" & _
                    "Extended Properties=""Excel 12.0;HDR=No"";"
    End If
Else
    If Val(Application.Version) < 12 Then
        szConnect = "Provider=Microsoft.Jet.OLEDB.4.0;" & _
                    "Data Source=" & SourceFile & ";" & _
                    "Extended Properties=""Excel 8.0;HDR=Yes"";"
    Else
        szConnect = "Provider=Microsoft.ACE.OLEDB.12.0;" & _
                    "Data Source=" & SourceFile & ";" & _
                    "Extended Properties=""Excel 12.0;HDR=Yes"";"
    End If
End If

If SourceSheet = "" Then
    ' workbook level name
    szSQL = "SELECT * FROM " & SourceRange$ & ";"
Else
    ' worksheet level name or range
    szSQL = "SELECT * FROM [" & SourceSheet$ & "$" & SourceRange$ & "];"
End If

On Error GoTo SomethingWrong

Set rsCon = CreateObject("ADODB.Connection")
Set rsData = CreateObject("ADODB.Recordset")

rsCon.Open szConnect
rsData.Open szSQL, rsCon, 0, 1, 1

' Check to make sure we received data and copy the data
If Not rsData.EOF Then

    If Header = False Then
        TargetRange.Cells(1, 1).CopyFromRecordset rsData
    Else
        'Add the header cell in each column if the last argument is True
        If UseHeaderRow Then
            For lCount = 0 To rsData.Fields.Count - 1
                TargetRange.Cells(1, 1 + lCount).Value = _
                rsData.Fields(lCount).Name
            Next lCount
            TargetRange.Cells(2, 1).CopyFromRecordset rsData
        Else
            TargetRange.Cells(1, 1).CopyFromRecordset rsData
        End If
    End If

Else
    MsgBox "No records returned from : " & SourceFile, vbCritical
End If

' Clean up our Recordset object.
rsData.Close
Set rsData = Nothing
rsCon.Close
Set rsCon = Nothing
Exit Sub

SomethingWrong:
MsgBox "The file name, Sheet name or Range is invalid of : " & SourceFile, _
       vbExclamation, "Error"
On Error GoTo 0

End Sub 

Answer 1

您需要逐个单元格地遍历您收到的数据。粘贴数据后，使用循环遍历目标范围（Excel 工作表上的数据范围）。比如：

for i = TargetRangeStartRow to numRowsInTargetRange
    for j = TargetRangeStartCol to numColsInTargetRange
        if Cells(i,j).formulaR1C1 = "" then
            Cells(i,j).formulaR1C1 = "/"
        end if
    next
next

显然您需要使用目标源中的第一行和第一列，并且您还需要获取目标范围内的行数和列数。我说使用目标范围是因为（我假设）是数据被粘贴到 Excel 中的范围。

在 Excel 中没有太多方法（我不认为？）来查看访问权限并事先查看是否有任何数据丢失。无论如何，您仍然需要遍历整个内容，因此在将数据粘贴到 Excel 工作表后执行此操作也一样好。