Syncfusion Essential DocIO操作word文件实用函数

Essential DocIO

.NET库，能够读写Microsoft Word文件。该组件是一个对象模型，同Microsoft Office COM类库相似，它不采用COM interop，以C#编写。如果系统内没有安装Microsoft Word，可以考虑该组件。

创建新的MS Word文档：支持创建包含文本、图片、图表、页面和页脚的MS Word文档。

文档格式化：支持格式化为通用的MS Word 报告。

文档生成基于模板：基于模板生成文档，可以使用MS Word GUI设计文档报告，然后使用DocIO向模板文件内动态填充数据。

文档属性：读写Word文档的属性设置。

转换：支持使用Essential PDF将MS Word文档转换为PDF。

高级特性：支持复制和合并多个MS Word文档为单个文档。

        public static byte[] ConvertHtmlToDoc(string html)
        {
            var document = new WordDocument();
            IWSection section = document.AddSection();
            IWParagraph para = section.AddParagraph();
            
            string errorMessage = "";
            bool valid = section.Body.IsValidXHTML(html, XHTMLValidationType.Strict, out errorMessage);
            if (!valid)
                throw new InvalidCastException(errorMessage + "<hr>" + html) ;
            document.XHTMLValidateOption = XHTMLValidationType.Strict;
            section.Body.InsertXHTML(html);
            var outMem = new MemoryStream();

            document.Save(outMem, FormatType.Doc);
            outMem.Seek(0, SeekOrigin.Begin);
            var content = new byte[outMem.Length];
            outMem.Read(content, 0, content.Length);
            outMem.Dispose();
            document.Close();
            return content;
        }

        /// <summary>
        /// 生成Word的时候替换指定的文字
        /// </summary>
        /// <param name="templatePath"></param>
        /// <param name="FileName"></param>
        /// <param name="replaysDictionary"></param>
        public static void ReplaceDocContent(string templateFileName, string newFileName,
                                             Dictionary<string, string> replaysDictionary)
        {
            IWordDocument document = new WordDocument();
            document.Open(templateFileName, FormatType.Doc);
            foreach (var rd in replaysDictionary)
            {
                if (string.IsNullOrEmpty(document.GetText())) continue;

                document.Replace(rd.Key, rd.Value, false, false);
                while (document.GetText().IndexOf(rd.Key) != -1)
                    document.Replace(rd.Key, rd.Value, false, false);
            }
            document.Save(newFileName, FormatType.Doc);
        }

        public static Stream SetDocProtect(byte[] docContent, string key)
        {
            var mem = new MemoryStream(docContent);
            mem.Seek(0, SeekOrigin.Begin);

            IWordDocument document = new WordDocument(mem, FormatType.Automatic);
            document.Protect(ProtectionType.AllowOnlyFormFields, key);
            var outMem = new MemoryStream();
            document.Save(outMem, FormatType.Doc);
            outMem.Seek(0, SeekOrigin.Begin);
            return outMem;
        }

        public static IWTable ReplaceTable(WordDocument document, string bookmarkName, DataTable data, string mergeColName , List<List<string>> mutilTableCaption)
        {
            if (document == null) throw new ArgumentNullException("document");
            if (bookmarkName == null) throw new ArgumentNullException("bookmarkName");
            if (data == null) throw new ArgumentNullException("data");
            if (data.Columns.Count < 1) throw new ArgumentNullException("data");
            
            int captionCount = mutilTableCaption != null && mutilTableCaption.Count > 0 ? mutilTableCaption.Count : 1;
            WTable table = new WTable(document, true);

            table.ResetCells(data.Rows.Count + captionCount, data.Columns.Count);

            for (var colCount = 0; colCount < captionCount; colCount++)
            {
                for (var col = 0; col < data.Columns.Count; col++)
                {
                    var paragraph = table.Rows[colCount].Cells[col].AddParagraph();

                    var caption = data.Columns[col].ColumnName;
                    if (mutilTableCaption != null && mutilTableCaption.Count > 0)
                        caption = mutilTableCaption[colCount][col];
                    var text = paragraph.AppendText(caption);
                    paragraph.ParagraphFormat.HorizontalAlignment = Syncfusion.DocIO.DLS.HorizontalAlignment.Center;
                    text.CharacterFormat.FontName = "宋体";
                    text.CharacterFormat.Bold = false;
                    text.CharacterFormat.FontSize = 10.5f;
                }
            }

            for (var row = captionCount; row <= data.Rows.Count; row++)
                for (var col = 0; col < data.Columns.Count; col++)
                {
                    var paragraph = table.Rows[row].Cells[col].AddParagraph();
                    var text = paragraph.AppendText(data.Rows[row - captionCount][col] + "");

                    text.CharacterFormat.FontName = "宋体";
                    text.CharacterFormat.FontSize = 9f;
                    double val = 0;
                    if (double.TryParse(text.Text, out val))
                    {
                        text.Text = Math.Round(val, 2) + "";
                        //align right
                        paragraph.ParagraphFormat.HorizontalAlignment = Syncfusion.DocIO.DLS.HorizontalAlignment.Right;
                        table.Rows[row].Cells[col].CellFormat.VerticalAlignment = VerticalAlignment.Middle;
                        table.Rows[row].Cells[col].CellFormat.TextWrap = false;
                    }
                }
            //合并单元格，向下合并
            if (!string.IsNullOrEmpty(mergeColName))
                for (var row = captionCount; row < table.Rows.Count; row++)
                {
                    var cell = table.Rows[row].Cells[data.Columns[mergeColName].Ordinal];
                    cell.CellFormat.VerticalMerge = CellMerge.Start;
                    var text = data.Rows[row - captionCount][mergeColName] + "";
                    if (row > captionCount)
                    {
                        var priorCell = table.Rows[row - captionCount].Cells[data.Columns[mergeColName].Ordinal];
                        var findText = data.Rows[row - captionCount - 1][mergeColName] + "";
                        if (text.Equals(findText))
                            cell.CellFormat.VerticalMerge = CellMerge.Continue;
                    }
                }

            BookmarksNavigator bk = new BookmarksNavigator(document);
            bk.MoveToBookmark(bookmarkName);

            TextBodyPart body= bk.GetBookmarkContent();
            bk.DeleteBookmarkContent(true);

            bk.InsertTable(table);
            return table;
        }