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excel - vb.net Office365共享点检查文件由用户打开

问题描述

我有以下脚本可以从 office365 Sharepoint 访问 excel 文件。

dim objApp2 As Excel.Application
dim objBook2 As Excel._Workbook
dim objBooks2 As Excel.Workbooks
dim objSheets2 As Excel.Sheets
dim objSheet2 As Excel._Worksheet

link="sharepointlink"
objApp2 = New Excel.Application()
objBooks2 = objApp2.Workbooks
objBook2 = objBooks2.Open(link, [ReadOnly]:=False)
objSheets2 = objBook2.Worksheets
ws2 = objSheets2("Data")
Dim valoare As Integer
valoare = Int(ws2.Range("a1").Value)
ws2.Range("a1").Value = valoare + 1
objBook2.SaveAs()
objBook2.Close(False)

我有一个问题：如果有人访问我的链接并打开文件，无论是在 Sharepoint 上还是在本地打开，我在尝试关闭对象或保存文件时都会收到错误消息。

当我尝试保存时，如何检查文件是否被某人打开，或者是否有其他方法可以访问该文件？

标签： excelvb.netoffice365

解决方案

欢迎来到本站。ReadOnly 属性应该告诉您是否有其他人打开它，尤其是当您说您不希望它打开时。您可能最终需要切换到共享工作簿，但这应该可以解决问题。

dim objApp2 As Excel.Application
dim objBook2 As Excel._Workbook
dim objBooks2 As Excel.Workbooks
dim objSheets2 As Excel.Sheets
dim objSheet2 As Excel._Worksheet

link="sharepointlink"
If IsFileInUse(link) then
        MsgBox "Cannot update Excel file"
        Exit Sub 'End
End If
objApp2 = New Excel.Application()
objBooks2 = objApp2.Workbooks
objBook2 = objBooks2.Open(link, [ReadOnly]:=False)
objSheets2 = objBook2.Worksheets
ws2 = objSheets2("Data")
Dim valoare As Integer
valoare = Int(ws2.Range("a1").Value)
ws2.Range("a1").Value = valoare + 1
objBook2.SaveAs()
objBook2.Close(False)



Public Function IsFileInUse(sFile As String) As Boolean
    Try
        Using f As New IO.FileStream(sFile, FileMode.Open, FileAccess.ReadWrite, FileShare.None)
        End Using
    Catch Ex As Exception
        Return True
    End Try
    Return False
End Function

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