我为 Microsoft Office Word 构建了一个加载项。当 Word 以管理员身份运行时使用加载项没有问题,但当它不以管理员身份运行时,访问功能区元素有两个常见异常。
第一个例外:
Unable to cast COM object of type 'System.__ComObject' to interface type 'Microsoft.Office.Core.IRibbonUI'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{000C03A7-0000-0000-C000-000000000046}' failed due to the following error: could not be found. (Exception from HRESULT: 0x80030002 (STG_E_FILENOTFOUND)).
at Microsoft.Office.Core.IRibbonUI.InvalidateControl(String ControlID)
当控件被以下代码无效时,会发生此错误:
ribbon.InvalidateControl("control-id");
第二个例外:
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)).
at Microsoft.Office.Interop.Word.ApplicationClass.get_Selection()
此错误发生在以下代码的最后一行:
object wdStory = Word.WdUnits.wdStory;
object wdMove = Word.WdMovementType.wdMove;
WrdApp.Selection.EndKey(ref wdStory, ref wdMove)
我该如何解决这个问题?