創建Word的實例時,當我在VS 2010中運行這個程序,我得到一個錯誤錯誤在VB.net
私人小組GenerateInvoice()(它在VS 2008中正常工作)
Dim emptyObject As Object = System.Reflection.Missing.Value
Dim wordApp As New Word.Application
wordApp.Visible = True
Dim InvoiceDoc As New Word.Document
InvoiceDoc = wordApp.Documents.Add(InvoicePath, emptyObject, emptyObject, emptyObject)
Dim totalFields As Integer = 0
For Each mergeField As Word.Field In InvoiceDoc.Fields
在對於每一行
將出現錯誤「對象引用不設置爲一個對象的一個 實例」。
我在這裏錯過了什麼嗎?
順便說一句,沒有必要使用類似於'Dim emptyObject As Object = System.Reflection.Missing.Value'的方法對VB進行CSharpify。只要不輸入值並將可選參數命名爲'Dim InvoiceDoc As New Word.Document = wordApp.Documents.Add(Template:= InvoicePath)'。較少的代碼 - C#非常冗長。 :) – 2010-11-16 18:33:50
另請參閱:http://stackoverflow.com/questions/7890905/delay-when-creating-microsoft-office-interop-word-application針對相同的異常,但ActiveDocument行上的另一個根問題 – 2011-10-25 14:32:31