異常來自HRESULT：0x800AC472

Question

當我設置Excel apllications displayalert propery爲true時，此異常被解僱... 爲什麼？

Answer 1

屬性瀏覽器是否被暫停？如果是這樣，這可能幫助：HRESULT 800ac472 from set operations in Excel

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一個建議是把你的電話try塊內的循環中，並不斷嘗試呼叫，直到成功爲止。它可能看起來像這樣：

retry = True 

Do 
    Try 
     'Put your call here. 
     retry = False 
    Catch ex As Exception 
     'Need to try again, 
     'If this isn't the 0x800ac472 exception it should be re-thrown, 
     'Use Sleep(50) to reduce the number of retries, 
     'Use Exit Do or re-throw the exception to give up. 
    End Try 
While retry 

我不寫在VB自己，所以錯誤的道歉。

Answer 2

的vb.net代碼，循環和重試，直到range.value被接受的System.Array

  Dim xlApp As Excel.Application = New Excel.Application 
      Dim wb As Excel.Workbook = xlApp.Workbooks.Open(paths) 
      Dim ws As Excel.Worksheet=wb.Worksheets(1) 
      Dim range As Excel.Range = Nothing    
      range = ws.UsedRange 
      Dim wh As System.Array 
      Dim retryRange As Boolean = False 
      While retryRange 
       Try 
        wh = range.Value(Excel.XlRangeValueDataType.xlRangeValueDefault) 
        retryRange = False 
       Catch ex As Exception 
        retryRange = True 
       End Try 
      End While 

VB，.NET代碼爲richj答案