在 vb.net 中打开和保存 Word 文档 - 可见性关闭时出错

Question

我正在打开一个word文档并将其另存为html，代码如下。如果我设置 objWord.Visible = False ，我会收到错误： Exception from HRESULT: 0x800A1098 ，我相信这表明没有什么可打开的。 如果我设置 objWord.Visible = True，代码可以正常运行，但我不希望最终用户看到正在运行的单词。将不胜感激任何帮助。

提前致谢

Protected Sub btnUpload_Click(ByVal sender As Object, ByVal e As EventArgs)
    Dim objWord As Microsoft.Office.Interop.Word.ApplicationClass = New ApplicationClass()
    If Not (fUpload.HasFile) Then
        lblMessage.Text = "Please choose file to upload"
    Else
        Try
            Dim strFileName As String = fUpload.FileName
            Dim strSep As String() = fUpload.FileName.Split("."c)
            Dim arrLength As Integer = strSep.Length - 1
            Dim strExt As String = strSep(arrLength).ToString().ToUpper()
            'Save the uploaded file to the folder

            strPathToUpload = Server.MapPath("Uploaded")
            strPathToConvert = Server.MapPath("WordToHtml")
            Dim FileName As Object = (strPathToUpload & "\") + fUpload.FileName

            Dim FileToSave As Object = (strPathToConvert & "\") + Left(fUpload.FileName, Len(fUpload.FileName) - 4) & ".htm"
            If strExt.ToUpper().Equals("DOC") Then
                fUpload.SaveAs((strPathToUpload & "\") + fUpload.FileName)
                lblMessage.Text = "File uploaded successfully"

                'open file in word
                objWord.Documents.Open(FileName, missing, [readOnly], missing, missing, missing, missing, missing, missing, missing, missing, isVisible)

                objWord.Visible = False 'error occures here if False

                Dim oDoc As Microsoft.Office.Interop.Word.Document = objWord.ActiveDocument

                If oDoc.Application.Version = "12.0" Then ' Word 2007 version
                    oDoc.SaveAs2(FileToSave, fltDocFormat, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing, missing)
                Else ' word 2003 version
                    oDoc.SaveAs(FileToSave, fltDocFormat, missing, missing, missing, missing, missing, missing, missing, missing, missing)
                End If

            Else
                lblMessage.Text = "Invalid file selected!"
            End If

            'Close/quit word 
            objWord.Quit(missing, missing, missing)
        Catch ex As Exception
            objWord.Quit(missing, missing, missing)
            Response.Write(ex.Message)
        End Try
    End If
End Sub

Answer 1

您可以尝试

Dim objWord As Microsoft.Office.Interop.Word.ApplicationClass = CreateoBject("Word.Application")

一般情况下，我从来不知道当您以这种方式创建单词自动化对象时它们是可见的，除非已经加载了Word。

另外，您似乎将 ISVISIBLE 参数传递给 DOCUMENTS.OPEN 函数，但我无法判断它的值是什么。如果为 FALSE，则文档应加载到隐藏窗口中，即使 Word 已打开，用户也看不到该窗口。