Question

我正在尝试获取文件夹路径，然后在此文件夹中为Excel工作表循环

Imports Excel= Microsoft.Office.Interop.Excel

Public Sub Combine()

    Dim objApp As Excel.Application
    Dim objBook As Excel.Workbook
    Dim objSheet As Excel.Worksheet
    Dim myrange As Excel.Range
    Dim folderPath As String
    Dim fileName As String

    folderPath = @"FolderPath"
    fileName = Dir(folderPath & "*.xls")

    Do While (fileName <> "")

        objBook = objApp.Workbooks.Open(Filename:=Txt_GetPath.Text & fileName = True)
        objBook.Activate()

        For Each objSheet In objBook.Sheets
            objSheet.Copy(After:=objBook.Sheets(1))
        Next objSheet

        objBook.Close()

    Loop

End Sub

但是在objBook =objApp.Workbooks.open(...)行，我得到了一个错误

路径必须是完整的

代码有什么问题？

Answer 1

要处理目录中的所有文件，可以使用Directory.EnumerateFiles函数。

在代码使用完毕后，处置Excel应用程序并不完全简单，因此我从The proper way to dispose Excel com object using VB.NET?中为您添加了一些内容。

我不知道您在打开工作簿的命令中使用= True的意图，因此我将其遗漏了。

Option Strict On

Imports System.IO
Imports Excel = Microsoft.Office.Interop.Excel

Public Sub DoCombine()

    Dim objApp As New Excel.Application
    Dim objBook As Excel.Workbook
    Dim objSheet As Excel.Worksheet

    Dim folderPath As String = Txt_GetPath.Text

    For Each excelFile In Directory.EnumerateFiles(folderPath, "*.xls")

        objBook = objApp.Workbooks.Open(Filename:=excelFile)
        objBook.Activate()

        For Each objSheet In objBook.Sheets
            objSheet.Copy(After:=objBook.Sheets(1))
        Next objSheet

        objBook.Close()

    Next

    objApp.Quit()

End Sub

Public Sub Combine()

    ' Call the method to do the actual work
    DoCombine()

    ' Now Let the GC clean up (twice, to clean up cycles too)
    GC.Collect()
    GC.WaitForPendingFinalizers()
    GC.Collect()
    GC.WaitForPendingFinalizers()

End Sub

使用Combine()方法-它会调用您在DoCombine()方法中使用的代码，并确保计算机上没有剩余的大量Excel副本–您会在任务管理器，即使它们不在屏幕上。

使用Option Strict On（几乎）总是一个好主意，因为它可以使Visual Studio向您显示代码中有些地方不正确。

Answer 2

    Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
    Dim strFileName As String
    Dim xl As New Excel.Application
    Dim wb As Excel.Workbook
    Dim ws As Excel.Worksheet
    If FolderBrowserDialog1.ShowDialog = System.Windows.Forms.DialogResult.OK Then
        Dim Directory = FolderBrowserDialog1.SelectedPath
        Dim Files() As System.IO.FileInfo
        Dim DirInfo As New System.IO.DirectoryInfo(Directory)
        Files = DirInfo.GetFiles("*", IO.SearchOption.AllDirectories)
        For Each File In Files
            wb = xl.Workbooks.Open(File.FullName)
            For Each ws In wb.Sheets
                strFileName = Microsoft.VisualBasic.Left(File.Name, 
        (InStrRev(File.Name, ".", -1, vbTextCompare) - 1))
                If ws.Name = "SCHEDULE" Then
                    ws.Range("S7", "S50").Value2 = strFileName
                End If
            Next
            wb.Close()
        Next
        xl.Quit()
    End If
    End Sub

通过VB检查路径文件夹

2 个答案: