DevExpress ASPxHtmlEditor控件格式化并导出Word (修复中文字体导出丢失)
在前台页面中先插入一个ASPxHtmlEditor控件，名为ASPxHtmlEditor1。 我用的Dev版本为14.1
格式化文本
在后台插入如下代码
1 const string css = "style='text-align:justify;" //两端对齐
2 + "text-justify:inter-ideograph;"
3 + "text-indent: 2em;" //首行缩进2字符
4 + "line-height:1.25;" //1.25倍行距
5 + "margin-top:0;margin-bottom:0;" //段前段后0行
6 + "font-size: 12pt;" //字体：小四
7 + "font-family:Times New Roman,宋体;'"; //中文字体：宋体，西文字体：Times New Roman
8
9
10 ASPxHtmlEditor1.Html = "<p " + css + ">"; //段落用标签p标记
11 for (int i = 0; i < 30;i++)
12 ASPxHtmlEditor1.Html += "测试文本123abCD"; //这是内容
13 ASPxHtmlEditor1.Html += "</p>
2 + "text-justify:inter-ideograph;"
3 + "text-indent: 2em;" //首行缩进2字符
4 + "line-height:1.25;" //1.25倍行距
5 + "margin-top:0;margin-bottom:0;" //段前段后0行
6 + "font-size: 12pt;" //字体：小四
7 + "font-family:Times New Roman,宋体;'"; //中文字体：宋体，西文字体：Times New Roman
8
9
10 ASPxHtmlEditor1.Html = "<p " + css + ">"; //段落用标签p标记
11 for (int i = 0; i < 30;i++)
12 ASPxHtmlEditor1.Html += "测试文本123abCD"; //这是内容
13 ASPxHtmlEditor1.Html += "</p>
上述代码实现了对文字的格式化，可以基本满足生成一般报告的格式需要。
Word导出及页面设置
对于ASPxHtmlEditor控件，无法直接设置导出Word或其他格式文件的页面（页边距、纸张大小等），需借助RichEditDocumentServer来转存实现。
添加如下引用：
1 using DevExpress.XtraRichEdit;
2 using DevExpress.XtraRichEdit.API.Native;
2 using DevExpress.XtraRichEdit.API.Native;
插入下面两个函数
1 private void SetPrintOptions(IRichEditDocumentServer richedit) //设置格式
2 {
3 foreach (Section _section in richedit.Document.Sections)
4 {
5 _section.Page.PaperKind = System.Drawing.Printing.PaperKind.A4; //A4纸
6 _section.Page.Landscape = false; //竖版
7 _section.Margins.Left = 295f; //左侧页边距 2.5cm
8 _section.Margins.Right = 295f;
9 _section.Margins.Top = 295f;
10 _section.Margins.Bottom = 295f;
11
12 }
13 }
14
15 protected void PushToBrowser(string fileName) //导出文件
16 {
17
18 FileStream fs = new FileStream(fileName, FileMode.Open);
19 byte[] bytes = new byte[(int)fs.Length];
20 fs.Read(bytes, 0, bytes.Length);
21 fs.Close();
22 if (File.Exists(fileName))
23 File.Delete(fileName);
24
25 Response.ContentType = "application/octet-stream";
26 Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(fileName, System.Text.Encoding.UTF8));
27 Response.BinaryWrite(bytes);
28 Response.Flush();
29 Response.End();
30 }
3 foreach (Section _section in richedit.Document.Sections)
4 {
5 _section.Page.PaperKind = System.Drawing.Printing.PaperKind.A4; //A4纸
6 _section.Page.Landscape = false; //竖版
7 _section.Margins.Left = 295f; //左侧页边距 2.5cm
8 _section.Margins.Right = 295f;
9 _section.Margins.Top = 295f;
10 _section.Margins.Bottom = 295f;
11
12 }
13 }
14
15 protected void PushToBrowser(string fileName) //导出文件
16 {
17
18 FileStream fs = new FileStream(fileName, FileMode.Open);
19 byte[] bytes = new byte[(int)fs.Length];
20 fs.Read(bytes, 0, bytes.Length);
21 fs.Close();
22 if (File.Exists(fileName))
23 File.Delete(fileName);
24
25 Response.ContentType = "application/octet-stream";
26 Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(fileName, System.Text.Encoding.UTF8));
27 Response.BinaryWrite(bytes);
28 Response.Flush();
29 Response.End();
30 }
在执行导出的事件（如Button_Click事件）中添加如下代码
1 string outputFileName = "newtext.doc"; //导出文件的名称
2
3 FileStream fs = new FileStream("test.rtf", FileMode.Create);
4 ASPxHtmlEditor1.Export(DevExpress.Web.ASPxHtmlEditor.HtmlEditorExportFormat.Rtf, fs); //注意此处 先导出Rtf格式
5 fs.Close();
6 fs.Close();
7
8 RichEditDocumentServer srv = new RichEditDocumentServer();
9 srv.LoadDocument("test.rtf", DocumentFormat.Rtf);
10 srv.BeginUpdate();
11 SetPrintOptions(srv);
12 srv.EndUpdate();
13 srv.SaveDocument(outputFileName, DocumentFormat.Doc); //再导出Doc格式 如果导出OpenXml（.Docx）格式，则中文字体丢失
3 FileStream fs = new FileStream("test.rtf", FileMode.Create);
4 ASPxHtmlEditor1.Export(DevExpress.Web.ASPxHtmlEditor.HtmlEditorExportFormat.Rtf, fs); //注意此处 先导出Rtf格式
5 fs.Close();
6 fs.Close();
7
8 RichEditDocumentServer srv = new RichEditDocumentServer();
9 srv.LoadDocument("test.rtf", DocumentFormat.Rtf);
10 srv.BeginUpdate();
11 SetPrintOptions(srv);
12 srv.EndUpdate();
13 srv.SaveDocument(outputFileName, DocumentFormat.Doc); //再导出Doc格式 如果导出OpenXml（.Docx）格式，则中文字体丢失
14
15 if (File.Exists("test.rtf"))
16 File.Delete("test.rtf");
17
18 PushToBrowser(outputFileName);
15 if (File.Exists("test.rtf"))
16 File.Delete("test.rtf");
17
18 PushToBrowser(outputFileName);
输出的文本如下：
p.s.关于页边距设置成cm的换算
试了几组数据，做了个3次拟合，先凑合用吧。（x是期望设置的厘米数 如2.5cm y就是程序的中用到的参数 如295 ）
