c#打印(通过Word)

DateTime dt = DateTime.Now;
                    Object none = System.Reflection.Missing.Value;
                    Microsoft.Office.Interop.Word.Application wordApp = new Microsoft.Office.Interop.Word.Application();
                    Microsoft.Office.Interop.Word.Document document = wordApp.Documents.Add(ref none, ref none, ref none, ref none);
                    //设置文档
                    document.PageSetup.TopMargin = 20;
                    document.PageSetup.BottomMargin = 20;
                    document.PageSetup.LeftMargin = 20;
                    document.PageSetup.RightMargin = 20;
                    wordApp.Visible = false;
                    wordApp.Selection.ParagraphFormat.LineSpacing = 10;// WdLineSpacing.wdLineSpace1pt5;//1f;//行间距wdLineSpaceSingle
                    object count = 14;
                    object WdLine = Microsoft.Office.Interop.Word.WdUnits.wdLine;//换一行
                    wordApp.Selection.MoveDown(ref WdLine, ref count, ref none);//移动鼠标
                    wordApp.Selection.Font.Size = 14;
                    wordApp.Selection.ParagraphFormat.Alignment = WdParagraphAlignment.wdAlignParagraphCenter;
                    wordApp.Selection.TypeText(label_RangeWeekFold.Text.Trim());//插入文本
                    //wordApp.Selection.Font.Borders.DistanceFromBottom=wdfo;
                    wordApp.Selection.TypeParagraph();//插入段落
                    wordApp.Selection.MoveDown(ref WdLine, ref count, ref none);
                    string str_temp = label13.Text.Trim() + label_MiddleZZBL.Text.Trim() + "%，" + label14.Text.Trim() + label_ColoredPer.Text.Trim() + "%，" + label17.Text.Trim() + label_BlackPer.Text.Trim() + "%，" + label7.Text.Trim() + label_color.Text.Trim();
                    wordApp.Selection.Font.Size = 9;
                    wordApp.Selection.ParagraphFormat.LineSpacing = 10;
                    wordApp.Selection.ParagraphFormat.Alignment = WdParagraphAlignment.wdAlignParagraphJustify;
                    wordApp.Selection.TypeText(str_temp);
                    wordApp.Selection.MoveDown(ref WdLine, ref count, ref none);
                    wordApp.Selection.TypeParagraph();
                    try
                    {

                        //建立表格
                        Microsoft.Office.Interop.Word.Table table = document.Tables.Add(document.Paragraphs.Last.Range, srcDgv.Rows.Count, srcDgv.Columns.Count, ref none, ref none);

                        //加入表格线
                        table.Borders.OutsideLineStyle = WdLineStyle.wdLineStyleSingle;
                        table.Borders.InsideLineStyle = WdLineStyle.wdLineStyleSingle;
                        for (int k = 1; k <= srcDgv.Rows.Count; k++)//填充数据
                        {
                            for (int j = 0; j < srcDgv.Columns.Count; j++)
                            {

                                if (srcDgv[j, k - 1].Style.BackColor == Color.LightSteelBlue)
                                {

                                    table.Cell(k, j + 1).Range.Shading.ForegroundPatternColor = WdColor.wdColorGray10;//改变单元格背景颜色
                                }

                                //table.Cell(k,j+1).Range.Text.
                                table.Cell(k, j + 1).Range.ParagraphFormat.LineSpacingRule = WdLineSpacing.wdLineSpaceExactly;
                                table.Cell(k, j + 1).Range.ParagraphFormat.LineSpacing = 12;
                                string ssTemp = srcDgv[j, k - 1].Value.ToString();
                                if (ssTemp.IndexOf("\r\n") < 0) ssTemp = ssTemp + "\r\n";
                                table.Cell(k, j + 1).Range.Text = ssTemp;// srcDgv[j, k - 1].Value.ToString();
                            }

                        }

                        object saveOption = WdSaveOptions.wdDoNotSaveChanges;
                        object background = false;
                        PrintDialog pd = new PrintDialog();
                        DialogResult dd = new DialogResult();
                        if (pd.ShowDialog() != DialogResult.Cancel)
                        {

                            wordApp.ActivePrinter = pd.PrinterSettings.PrinterName;
                            document.PrintOut(ref background, ref none, ref none, ref none, ref none, ref none, ref none, ref none, ref none, ref none, ref none, ref none, ref none, ref none, ref none, ref none, ref none, ref none);
                            //foreach()
                            //{
                            //}
                            document.Close(ref saveOption, ref none, ref none); //关闭当前文档，如果有多个模版文件进行操作，则执行完这一步后接着执行打开Word文档的方法即可
                            saveOption = WdSaveOptions.wdDoNotSaveChanges;
                            wordApp.Quit(ref saveOption, ref none, ref none); //关闭Word进程
                            return;
                        }

                        document.Close(ref saveOption, ref none, ref none); //关闭当前文档，如果有多个模版文件进行操作，则执行完这一步后接着执行打开Word文档的方法即可
                        saveOption = WdSaveOptions.wdDoNotSaveChanges;
                        wordApp.Quit(ref saveOption, ref none, ref none); /