这个陈述中的问题是什么？

Question

我正在编写一个示例应用程序来将DOC文件转换为PDF.在这样做时,我遇到了错误.

// Creating the instance of WordApplication
MSDOC = new Microsoft.Office.Interop.Word.ApplicationClass();
try
{
    MSDOC.Visible = false;
    MSDOC.Documents.Open(ref Source, ref Unknown,
     ref Unknown, ref Unknown, ref Unknown,
     ref Unknown, ref Unknown, ref Unknown,
     ref Unknown, ref Unknown, ref Unknown,
     ref Unknown, ref Unknown, ref Unknown, ref Unknown, ref Unknown);
    MSDOC.Application.Visible = false;
    MSDOC.WindowState = Microsoft.Office.Interop.Word
                                 .WdWindowState.wdWindowStateMaximize;
    object format = Microsoft.Office.Interop.Word.WdSaveFormat.wdFormatPDF;
}
catch (Exception ex)
{
    MessageBox.Show(ex.Message, "Message from Sample");
}

这是我收到错误的声明:

object format = Microsoft.Office.Interop.Word.WdSaveFormat.wdFormatPDF;

错误互操作类型'Microsoft.Office.Interop.Word.ApplicationClass'无法嵌入.请改用适用的界面.

Answer 1

您是否尝试过执行错误消息建议的内容？更换

MSDOC = new Microsoft.Office.Interop.Word.ApplicationClass();

同

Microsoft.Office.Interop.Word.Application MSDOC;
MSDOC = new Microsoft.Office.Interop.Word.Application();

Answer 2

尝试MSDOC = new Microsoft.Office.Interop.Word.Application();而不是.ApplicationClass().