无法转换类型为"Microsoft.Office.Interop.Word.ApplicationClass"的COM对象 [英] Unable to cast COM object of type 'Microsoft.Office.Interop.Word.ApplicationClass'

问题描述

你好，

我正在尝试查找和替换Windows窗体上加载的文档文档一词上的标签，以使用该单词.我声明的范围

Hello,

I am trying to find and replace tags on the word Document which loaded on windows form.to use the word.Range i declared

`Dim wd As Object = New Word.Document

Dim wa As Object = New Word.Application

wd = wordControl.ActiveDocument

 wa = wd.Application

Dim HeaderFooter As Word.Range          'Line1

Dim Header As Word.HeaderFooter         'Line2

//Line1 and Line 2's variable are noting after execution

HeaderFooter = wa.ActiveDocument.Range



For Each HeaderFooter In wa.ActiveDocument.StoryRanges     'this line throws exception

 With HeaderFooter.Find

  .Format = False

  .Replacement.Highlight = 100

  .Replacement.Font.Bold = True

  .Text = "<<Client Name>>"

  .Replacement.Text = "Mr. Client"

  .Execute(Replace:=Word.WdReplace.wdReplaceAll, Forward:=True, Wrap:=Word.WdFindWrap.wdFindContinue)

 End With`

例外:

无法将类型为"Microsoft.Office.Interop.Word.ApplicationClass"的COM对象转换为接口类型为"Microsoft.Office.Interop.Word._Application".该操作失败，因为对IID为"{00020970-0000-0000-C000-000000000046}"的接口的COM组件上的QueryInterface调用由于以下错误而失败:找不到. (来自HRESULT的异常:0x80030002(STG_E_FILENOTFOUND)).


为此，我正在使用
-Visual Studio 2005专业版
-MS Office 2003专业版

当我尝试创建单词或excel对象时，该对象显示了Image中附加的所有属性.但是在声明期间，它没有给出任何异常:

我正在使用以下dll和库作为参考:

-Interop.office.dll

-Interop.Excel.dll

-Interop.Word.dll

-Microsoft Office 11.0对象库

-Microsoft Excel 11.0对象库

-Microsoft Word 11.0对象库


此代码在Windows和MS Office的许多组合中都可以正常工作，但是在某些组合中会出现问题.


问候，

Vaibhav

Exception:

Unable to cast COM object of type ''Microsoft.Office.Interop.Word.ApplicationClass'' to interface type ''Microsoft.Office.Interop.Word._Application''. This operation failed because the QueryInterface call on the COM component for the interface with IID ''{00020970-0000-0000-C000-000000000046}'' failed due to the following error: could not be found. (Exception from HRESULT: 0x80030002 (STG_E_FILENOTFOUND)).


for that I am Using
- Visual Studio 2005 professional edition
- MS Office 2003 professional edition

when I am trying to create a word or excel object the object shows all the properties as attached in the Image.but during the declaration it did not gave any exception:

I am using following dll and library as a reference:

- Interop.office.dll

- Interop.Excel.dll

- Interop.Word.dll

- Microsoft office 11.0 object Library

- Microsoft Excel 11.0 object Library

- Microsoft Word 11.0 object Library


This codes working fine in many combination of windows and MS Office.but give problem in some combination.


Regards,

Vaibhav

推荐答案

您的代码段很混乱.什么是wordControl?声明在哪里?那wd = wordControl.ActiveDocument呢?
如果不是Nothing，为什么不在ForEach子句中使用它?

Your code snippet is a chaos. What''s wordControl? Where is it declared? And what about wd = wordControl.ActiveDocument?
If that is not Nothing, why don''t you use it in your ForEach clause?

For Each HeaderFooter In wd.StoryRanges

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