Question

我有这个小代码在doc文件中添加水印图像，只有一点问题，如果我转换一次它工作正常，但如果我尝试转换另一个文件给我这个错误：

RPC服务器不可用。（HRESULT异常：0x800706BA）

在这一行：

wordFile = oWord.Documents.Open（row.filename）;

这是我的代码：

Microsoft.Office.Interop.Word.Application oWord = new Microsoft.Office.Interop.Word.Application();
        Document wordFile = new Document();

        //OTHER VARIABLES
        Object oClassType = "Word.Document.8";
        Object oTrue = true;
        Object oFalse = false;
        Object oMissing = System.Reflection.Missing.Value;

private void BtnInserirImagem_Click(object sender, RoutedEventArgs e)
        {
            foreach(MyDocsList row in dataGridList.Items)
            {
                wordFile = oWord.Documents.Open(row.filename);
                addWatermark(wordFile, row.filename);

                //QUITTING THE APPLICATION
                oWord.Quit(ref oMissing, ref oMissing, ref oMissing);
            }
        }

        private void addWatermark(Document doc, string filename)
        {
            object refmissing = System.Reflection.Missing.Value;
            string watermarkPath = Directory.GetCurrentDirectory() + "\\fundo.jpg";

            if (File.Exists(watermarkPath))
            {

                object linkToFile = false;
                object saveWithDocument = true;

                WdHeaderFooterIndex hfIndex = WdHeaderFooterIndex.wdHeaderFooterPrimary;

                HeaderFooter headerFooter;

                for (int i = 1; i < doc.Sections.Count + 1; i++)
                {

                    if (doc.Sections[i].Headers != null)
                    {
                        headerFooter = doc.Sections[i].Headers[hfIndex];
                    }
                    else if (doc.Sections[i].Footers != null)
                    {
                        headerFooter = doc.Sections[i].Footers[hfIndex];
                    }
                    else
                    {
                        headerFooter = null;
                    }

                    if (headerFooter != null)
                    {

                        try
                        {
                            Microsoft.Office.Interop.Word.Shape watermarkShape;
                            watermarkShape = headerFooter.Shapes.AddPicture(watermarkPath, ref linkToFile, ref saveWithDocument, ref refmissing,
                                                                            ref refmissing, ref refmissing, ref refmissing, ref refmissing);

                            watermarkShape.Left = Convert.ToSingle(WdShapePosition.wdShapeLeft);
                            watermarkShape.Top = Convert.ToSingle(WdShapePosition.wdShapeCenter);
                        }
                        catch (System.Runtime.InteropServices.COMException e)
                        {
                            MessageBoxResult result = MessageBox.Show(String.Format("{0} - Error Code = {1}", e.Message, e.ErrorCode));
                            throw e;
                        }
                    }
                }

                oWord.ActiveWindow.View.SeekView = WdSeekView.wdSeekMainDocument;
                oWord.ActiveWindow.ActivePane.View.Type = Microsoft.Office.Interop.Word.WdViewType.wdPrintView;
            }
            else
            {
                MessageBoxResult result = MessageBox.Show("Could not find watermark image");
            }

            //THE LOCATION WHERE THE FILE NEEDS TO BE SAVED
            string outstringFile="";
            string pathfile = System.IO.Path.GetDirectoryName(filename);
            string filenameFile = System.IO.Path.GetFileName(filename);
            outstringFile = pathfile + "\\OG" + filenameFile;

            Object oSaveAsFile = (Object)(outstringFile);

            wordFile.SaveAs(ref oSaveAsFile, ref oMissing, ref oMissing, ref oMissing,
                ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing,
                ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing,
                ref oMissing, ref oMissing);


            //CLOSING THE FILE
            wordFile.Close(ref oFalse, ref oMissing, ref oMissing);


        }

Answer 1

取自http://social.msdn.microsoft.com/Forums/en-NZ/vbinterop/thread/2c8689e4-4f8c-42c1-b092-f8ae41b9779c

首次以编程方式启动Word时，它会通过RPC服务器连接到Word。当您关闭文档时，此服务器将在您的应用程序不知情的情况下关闭。解决方案是捕获错误并重新初始化Word对象。然后你就可以继续了。

编辑：

您只在外部初始化oWord对象一次。然后你在第一次运行的foreach循环中调用.Quit（）方法，之后它就不再可用了。您需要删除oWord.Quit();中的BtnInserirImagem_Click并使用不断初始化的单词对象，或者您可以在需要时对其进行初始化，然后再调用它。

    Document wordFile = new Document();

    //OTHER VARIABLES
    Object oClassType = "Word.Document.8";
    Object oTrue = true;
    Object oFalse = false;
    Object oMissing = System.Reflection.Missing.Value;

    private void BtnInserirImagem_Click(object sender, RoutedEventArgs e)
    {
        //Init Word App Object here
        Microsoft.Office.Interop.Word.Application oWord = new Microsoft.Office.Interop.Word.Application();

        foreach (MyDocsList row in dataGridList.Items)
        {
            wordFile = oWord.Documents.Open(row.filename);
            //pass the Word App instance
            addWatermark(wordFile, row.filename, oWord);
        }
        // Quitting oWord outside of the loop
        oWord.Quit(ref oMissing, ref oMissing, ref oMissing);
    }

    //added the Word App instance to the signature
    private void addWatermark(Document doc, object filename, Microsoft.Office.Interop.Word.Application oWord)
    {
        object refmissing = System.Reflection.Missing.Value;
        string watermarkPath = Directory.GetCurrentDirectory() + "\\fundo.jpg";

        if (File.Exists(watermarkPath))
        {

            object linkToFile = false;
            object saveWithDocument = true;

            WdHeaderFooterIndex hfIndex = WdHeaderFooterIndex.wdHeaderFooterPrimary;

            HeaderFooter headerFooter;

            for (int i = 1; i < doc.Sections.Count + 1; i++)
            {

                if (doc.Sections[i].Headers != null)
                {
                    headerFooter = doc.Sections[i].Headers[hfIndex];
                }
                else if (doc.Sections[i].Footers != null)
                {
                    headerFooter = doc.Sections[i].Footers[hfIndex];
                }
                else
                {
                    headerFooter = null;
                }

                if (headerFooter != null)
                {

                    try
                    {
                        Microsoft.Office.Interop.Word.Shape watermarkShape;
                        watermarkShape = headerFooter.Shapes.AddPicture(watermarkPath, ref linkToFile, ref saveWithDocument, ref refmissing,
                                                                        ref refmissing, ref refmissing, ref refmissing, ref refmissing);

                        watermarkShape.Left = Convert.ToSingle(WdShapePosition.wdShapeLeft);
                        watermarkShape.Top = Convert.ToSingle(WdShapePosition.wdShapeCenter);
                    }
                    catch (System.Runtime.InteropServices.COMException e)
                    {
                        MessageBoxResult result = MessageBox.Show(String.Format("{0} - Error Code = {1}", e.Message, e.ErrorCode));
                        throw e;
                    }
                }
            }

            oWord.ActiveWindow.View.SeekView = WdSeekView.wdSeekMainDocument;
            oWord.ActiveWindow.ActivePane.View.Type = Microsoft.Office.Interop.Word.WdViewType.wdPrintView;
        }
        else
        {
            MessageBoxResult result = MessageBox.Show("Could not find watermark image");
        }

        //THE LOCATION WHERE THE FILE NEEDS TO BE SAVED
        string outstringFile = "";
        string pathfile = System.IO.Path.GetDirectoryName(filename);
        string filenameFile = System.IO.Path.GetFileName(filename);
        outstringFile = pathfile + "\\OG" + filenameFile;

        Object oSaveAsFile = (Object)(outstringFile);

        wordFile.SaveAs(ref oSaveAsFile, ref oMissing, ref oMissing, ref oMissing,
            ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing,
            ref oMissing, ref oMissing, ref oMissing, ref oMissing, ref oMissing,
            ref oMissing, ref oMissing);

        //CLOSING THE FILE
        wordFile.Close(ref oFalse, ref oMissing, ref oMissing);
    }

在c＃中添加水印图像

1 个答案: