c# Aspose.Cells 通过Excel模板生产excel数据再打印

多的不说，我们先来利用Northwind做两个小demo。先说说Aspose.Cells的模板语法：

1. &=DataSource.Field，&=[DataSource].[Field]是对DataTable和几何类型的引用，将会从当前行开始竖直向下生成多行数据。
2. &=$data:是对变量或数组的引用。数组存在skip，horizontal等属性，具体参见
3. &=&=动态公式计算；{r}当前行，{c}当前列，{-n}，{n}当前行或列的偏移量前n或后n。
4. &==是动态计算，如excel，if等语句。（if（logic_test,true_value,false_value））

还有其他更为复杂的汇总计算的表达式，这里也不在这节多讲，有兴趣的朋友，可以去官网看看。我们先来个简单的例子，光说，总是不行的，还是要代码实践才能说明一切：

代码如下：

App_Code.SqlDbHelper help = new App_Code.SqlDbHelper();
var s = Aspose.Cells.CellsHelper.GetVersion();
var sql = "select WL_TZ,WL_CL,RPCJH_SL,WL_MC,RPCJH_JHKGRQ,RPCJH_JHID,RPCJH_JHID as RPCJH_JHID1,RPCJH_GXID,U_RPCJH_KH,(select rtrim((cast(GYLX_GXID as char(2)))+' '+ltrim(GYLX_GXMC)) from GYLX where GYLX_GYLXID=wo.WO_GYLXID and GYLX_GXID=RPCJH_GXID) as gxmc from RPCJH left join wl on RPCJH_WLID=WL_WLID left join wo on wo.WO_WOID=RPCJH_WOID where RPCJH_JHID='JHA1909152' and RPCJH_BZGXID!='888' ";
var dt = help.ExecuteDataTable(sql);
dt.TableName = "Customers";
Workbook workBook = new Workbook(@"E:\KaBoProject\GTDB\GTDB\bin\Debug\机加作业计划卡.xls");
WorkbookDesigner designer = new WorkbookDesigner(workBook);
//数据源
designer.SetDataSource(dt);
//报表单位
designer.SetDataSource("RPCJH_JHID", dt.Rows[0]["RPCJH_JHID"].ToString().Trim());
designer.SetDataSource("U_RPCJH_KH", dt.Rows[0]["U_RPCJH_KH"].ToString().Trim());
designer.SetDataSource("RPCJH_JHID1", "计划编号：" + dt.Rows[0]["RPCJH_JHID1"].ToString().Trim() + " 领卡人：");
designer.SetDataSource("RPCJH_JHKGRQ", "派工日期:" +Convert.ToDateTime(dt.Rows[0]["RPCJH_JHKGRQ"].ToString().Trim()).ToShortDateString());
designer.SetDataSource("WL_MC", "名称：" + dt.Rows[0]["WL_MC"].ToString().Trim());
designer.SetDataSource("WL_TZ", dt.Rows[0]["WL_TZ"].ToString().Trim());
designer.SetDataSource("WL_CL", dt.Rows[0]["WL_CL"].ToString().Trim());
designer.SetDataSource("RPCJH_SL", dt.Rows[0]["RPCJH_SL"].ToString().Trim());

designer.Process();
workBook.Save(@"E:\KaBoProject\GTDB\GTDB\bin\Debug\2.xls", SaveFormat.Xlsx);

designer = null;

生成的excel如下

打印代码如下：

Workbook workbook = new Workbook(@"E:\KaBoProject\GTDB\GTDB\bin\Debug\2.xls");
           
            //Get the worksheet to be printed
Worksheet worksheet = workbook.Worksheets[0];//获取该Excel文档的第一个工作表
            //PageSetup pageSetup = worksheet.PageSetup;
            //pageSetup.Orientation = PageOrientationType.Landscape;
            //pageSetup.LeftMargin = 0;
            //pageSetup.RightMargin = 0.1;          
            //pageSetup.BottomMargin = 0.3;
            //pageSetup.PrintArea = "A2:J29";
            //Apply different Image / Print options.
            Aspose.Cells.Rendering.ImageOrPrintOptions options = new Aspose.Cells.Rendering.ImageOrPrintOptions();

//Set the Printing page property
            //options.PrintingPage = PrintingPageType.IgnoreStyle;
            //Render the worksheet
            SheetRender sr = new SheetRender(worksheet, options);

System.Drawing.Printing.PrinterSettings printSettings = new System.Drawing.Printing.PrinterSettings();
            string strPrinterName = printSettings.PrinterName;

//send to printer
            //System.Drawing.Image map = sr.ToImage(0);

sr.ToPrinter(strPrinterName);