<script type="text/javascript" >function Print_Click() {alert("打印测试");var Template = "http://172.16.18.217/ExcelDoc/CreateCard.xls";var xlApp = new ActiveXObject("Excel.Application");var xlBook = xlApp.Workbooks.add(Template);var xlsheet = xlBook.ActiveSheet;xlsheet.printout;xlApp = null;xlsheet = null;}
</script>

protected void PrintTestButton_Click(object sender, EventArgs e)
{string StrScript;StrScript = ("<script type='text/javascript'>");StrScript += ("alert(\"打印测试\");");StrScript += ("var Template ='http://172.16.18.217/ExcelDoc/CreateCard.xls';");StrScript += ("var xlApp = new ActiveXObject('Excel.Application');");StrScript += ("if(xlApp== undefined){");StrScript += ("alert(\"Excel对象创建失败\");}else{");StrScript += ("var xlBook = xlApp.Workbooks.add(Template);");StrScript += ("var xlsheet = xlBook.ActiveSheet;");StrScript += ("xlsheet.printout;");StrScript += ("xlApp = null;");StrScript += ("xlsheet = null;}");StrScript += ("</script>");this.ClientScript.RegisterStartupScript(this.GetType(), " ", StrScript);
}

public int PrintPatientInfo()
{PrintExcel pExcel = new PrintExcel("CreateCard.xls");Worksheet sheet = pExcel.GetWorksheet();sheet.Cells[1, 1] = "建卡信息";sheet.Cells[2, 1] = "患者卡号:";sheet.Cells[2, 2] = patientCardNum.Trim();sheet.Cells[2, 3] = "患者姓名:";sheet.Cells[2, 4] = patientName.Trim();sheet.Cells[4, 1] = "金额";sheet.Cells[4, 2] = "1元";sheet.Cells[4, 3] = "日期";sheet.Cells[4, 4] = DateTime.Now.ToString("yyyy-MM-dd");pExcel.ExecPrint(1);return 0;
}

public class PrintExcelJs
{private string excelPath;private string StrScript;public PrintExcelJs(string xslPath){excelPath = xslPath;StrScript = "<script type='text/javascript'>";StrScript += "var Template ='"+excelPath+"';";StrScript += "var xlApp = new ActiveXObject('Excel.Application');";StrScript += "if(xlApp== undefined){";StrScript += "alert(\"Excel对象创建失败\");}else{";StrScript += "var xlBook = xlApp.Workbooks.add(Template);";StrScript += "var xlsheet = xlBook.ActiveSheet;";}public void InsertValueToExcelCell(int i, int j, string strContent){StrScript += "xlsheet.cells(" + i.ToString() + "," + j.ToString() + ")";StrScript += "=\"" + strContent + "\";";}public void ExecPrint(System.Web.UI.Page page,int numOfPrint=1){StrScript += "xlsheet.printout(1,null,1,false,\"PrintGuid\",false,false);";//这段代码花了我半天时间，因为之前听说javascript不能指定打印机，存疑，后来终于找到正确的用法了StrScript += "xlApp = null;";StrScript += "xlsheet = null;}";StrScript += "</script>";page.ClientScript.RegisterStartupScript(this.GetType(), Guid.NewGuid().ToString(), StrScript);}
}示例代码：private void PrintTestButton_Click()
{string excelPath = "http://"+Request.Url.Host + @"/ExcelDoc/" + "CreateCard.xls";PrintExcelJs pExcel = new PrintExcelJs(excelPath);pExcel.InsertValueToExcelCell(1, 1, "XX信息");pExcel.InsertValueToExcelCell(2, 1, "患者卡号:");pExcel.InsertValueToExcelCell(2, 2, patientCardNum.Trim());pExcel.InsertValueToExcelCell(2, 3, "患者姓名:");pExcel.InsertValueToExcelCell(2, 4, patientName.Trim());pExcel.InsertValueToExcelCell(4, 1, "金额");pExcel.InsertValueToExcelCell(4, 2, "1元");pExcel.InsertValueToExcelCell(4, 3, "日期");pExcel.InsertValueToExcelCell(4, 4, DateTime.Now.ToString("yyyy-MM-dd"));pExcel.ExecPrint(this,1);
}