将word文档转换为pdf

Question

我有一个 RadGridView ，应该导出为 doc、pdf、csv 和 xls 格式。导出到 doc、csv 和 xls 工作正常...但导出到 pdf 格式时出现问题。导出到 pdf 有效，但我隐藏的列仍然显示...

所以我只想通过以下方式将 RadGridView 导出为 pdf：将其导出到 word，然后

以 编程方式将其转换为 pdf...顺便，这是我导出到word的代码。

//export to doc
private void Export_Doc(object sender, System.Windows.RoutedEventArgs e)
{
    ExportDialog("doc", "Word", ExportFormat.Html);
}
private void ExportDialog(string extension, string selectedItem, ExportFormat format)
{
    SaveFileDialog dialog = new SaveFileDialog();
    dialog.DefaultExt = extension;
    dialog.Filter = String.Format("{1} files (*.{0})|*.{0}|All files (*.*)|*.*", extension, selectedItem);
    dialog.FilterIndex = 1;
    if (dialog.ShowDialog() == true)
    {
        using (Stream stream = dialog.OpenFile())
        {
            GridViewExportOptions exportOptions = new GridViewExportOptions();
            exportOptions.Format = format;
            exportOptions.ShowColumnFooters = true;
            exportOptions.ShowColumnHeaders = true;
            exportOptions.ShowGroupFooters = true;

            RadGridView1.Export(stream, exportOptions);
        }
    }
}

Answer 1

通过 OLE 自动化使用 word（注意：word COM 不可重入 - 确保不要从不同线程同时调用它）：

    /// <summary>
    /// Interacts directly with Word via COM to convert a document to PDF
    /// Must have the Microsoft enhancement installed to support Save As PDF
    /// in the word file menu
    /// "2007 Microsoft Office Add-in: Microsoft Save as PDF or XPS" - SaveAsPDFandXPS.exe
    /// </summary>
    private void ExportToPDFUsingWord(object sourceDoc, string destPDF)
    {
        object m = System.Reflection.Missing.Value;
        object readOnly = true;
        object myFalse = false;
        object isVisible = false;
        object matchCase = false;
        object matchWholeWord = true;
        object saveChangesWhenQuitting = false;

        //Debug("Connecting to word");
        _Application oWordApp = new Application();
        _Document oWordDoc = null;
        Documents oWordDocs = null;

        try
        {
            // load the source file
            //Debug("Opening " + sourceDoc);
            oWordDocs = oWordApp.Documents;
            oWordDoc = oWordDocs.Open(ref sourceDoc, ref m, ref readOnly, ref m, ref m, ref m, ref m, ref m, ref m, ref m, ref m, ref isVisible, ref m, ref m, ref m, ref m);

            if (oWordDoc != null)
            {
                try
                {
                    WdExportFormat paramExportFormat = WdExportFormat.wdExportFormatPDF;
                    bool paramOpenAfterExport = false;
                    WdExportOptimizeFor paramExportOptimizeFor = WdExportOptimizeFor.wdExportOptimizeForPrint;
                    WdExportRange paramExportRange = WdExportRange.wdExportAllDocument;
                    int paramStartPage = 0;
                    int paramEndPage = 0;
                    WdExportItem paramExportItem = WdExportItem.wdExportDocumentContent;
                    bool paramIncludeDocProps = true;
                    bool paramKeepIRM = true;
                    WdExportCreateBookmarks paramCreateBookmarks = WdExportCreateBookmarks.wdExportCreateWordBookmarks;
                    bool paramDocStructureTags = true;
                    bool paramBitmapMissingFonts = true;
                    bool paramUseISO19005_1 = false;

                    // 
                    // Export the file to PDF. 
                    //Debug("Exporting to " + destPDF); 
                    oWordDoc.ExportAsFixedFormat(destPDF,
                        paramExportFormat, paramOpenAfterExport,
                        paramExportOptimizeFor, paramExportRange, paramStartPage,
                        paramEndPage, paramExportItem, paramIncludeDocProps,
                        paramKeepIRM, paramCreateBookmarks, paramDocStructureTags,
                        paramBitmapMissingFonts, paramUseISO19005_1,
                        ref m);
                }
                finally
                {
                    //Debug("Closing " + sourceDoc); 
                    oWordDoc.Close(ref saveChangesWhenQuitting, ref m, ref m);
                }
            }
            else
                throw new FileLoadException("Documents.Open returned null for file \'" + sourceDoc + "\', perhaps use comexp.msc and change DCOM->Word97-2003 Identity to Interactive user");  // if you are running from within a service then Word behaves differently - it is designed as a user application which must have a user interface
        }
        finally
        {
            // close word and cleanup            
            //Debug("Quitting Word"); 
            oWordApp.Quit(ref saveChangesWhenQuitting, ref m, ref m);

            //Debug("Releasing RCWs");
            Release(oWordDocs);
            oWordDocs = null;
            Release(oWordDoc);
            oWordDoc = null;
            Release(oWordApp);
            oWordApp = null;

            //Debug("Collecting garbage");
            GC.Collect();  // forces the garbage collector to run and might release any references that the RCW still has
            GC.WaitForPendingFinalizers();
            //Debug("Word objects finished");
        }
    }

Answer 2

使用 DevExpress（下面的代码仅适用于 RTF 格式 - 不一定适用于 Word 的所有功能）：

private void ExportToPDFUsingDevExpress(string sourceDoc, string destPDF)
    {
        DevExpress.XtraPrinting.PrintingSystem printingSystem1 = new DevExpress.XtraPrinting.PrintingSystem();
        DevExpress.XtraRichEdit.RichEditControl richEditControl1 = new DevExpress.XtraRichEdit.RichEditControl();
        richEditControl1.LoadDocument(sourceDoc);
        DevExpress.XtraPrinting.PrintableComponentLink link = new DevExpress.XtraPrinting.PrintableComponentLink(printingSystem1);
        link.Component = richEditControl1;
        link.CreateDocument();
        link.PrintingSystem.ExportToPdf(destPDF);
    }