一、前言

       最近做的项目需要单据批量打印的功能，优先想到用RDLC来实现。经过Visual Studio几个版本的发展后，RDLC愈发成熟，操作方式也变得简洁，相比vs2005的版本，有质的提升，不过仍有一下几点缺憾：

        1、内置函数不支持C#,只支持Visual Basic

        2、不支持Asp.net MVC,支持webForm和winForm

        3、VS2008及以下版本开发WebForm时，不建议使用RDLC，因为生成的报表样式不兼容chrome浏览器。

        如果未来时间充裕，我将会把RDLC一系列应用实例分享出来。闲话少说，言归正传。

二、测试数据

--订单表
create table fcwOrder
(
id int identity(1,1),
ordercode varchar(50),--订单号
ordername varchar(50),--订单名字
opername varchar(50),--经手人
comname varchar(50),--客户名称
createtime datetime,--订单日期
barcode image--条形码，预留字段。
)
--订单明细
create table fcwOrderDetails
(
id int identity(1,1),
ordercode varchar(50),--订单号
procode varchar(50),--产品编号
proname varchar(50),--产品名称
promodel varchar(50),--产品型号
pronum int --订购数量
)
--测试数据
insert into fcwOrder(ordercode,ordername,opername,comname,createtime) values(‘order001‘,‘订单一‘,‘张三一‘,‘客户一‘,‘2014-07-01‘)
insert into fcwOrder(ordercode,ordername,opername,comname,createtime) values(‘order002‘,‘订单二‘,‘张三二‘,‘客户二‘,‘2014-07-02‘)
insert into fcwOrder(ordercode,ordername,opername,comname,createtime) values(‘order003‘,‘订单三‘,‘张三三‘,‘客户三‘,‘2014-07-03‘)

insert into fcwOrderDetails(ordercode,procode,proname,promodel,pronum) values(‘order001‘,‘pro0011‘,‘产品一一‘,‘长1宽1‘,11)
insert into fcwOrderDetails(ordercode,procode,proname,promodel,pronum) values(‘order001‘,‘pro0012‘,‘产品一二‘,‘长1宽2‘,12)
insert into fcwOrderDetails(ordercode,procode,proname,promodel,pronum) values(‘order002‘,‘pro0021‘,‘产品二一‘,‘长2宽1‘,21)
insert into fcwOrderDetails(ordercode,procode,proname,promodel,pronum) values(‘order002‘,‘pro0022‘,‘产品二二‘,‘长2宽2‘,22)
insert into fcwOrderDetails(ordercode,procode,proname,promodel,pronum) values(‘order003‘,‘pro0031‘,‘产品三一‘,‘长3宽1‘,31)
insert into fcwOrderDetails(ordercode,procode,proname,promodel,pronum) values(‘order003‘,‘pro0032‘,‘产品三二‘,‘长3宽2‘,32)
insert into fcwOrderDetails(ordercode,procode,proname,promodel,pronum) values(‘order003‘,‘pro0033‘,‘产品三三‘,‘长3宽3‘,33)
--统一订单明细
select o.id as orderid,o.ordercode,o.opername,o.ordername,o.comname,o.createtime,o.barcode,
      d.id as detailid,d.ordercode detailordercode,d.procode,d.proname,d.promodel,d.pronum
      from fcwOrder o
      join fcwOrderDetails d on d.ordercode=o.ordercode

三、编码实现

  提示：本案例是属于winform程序，原理上操作RDLC部分后台代码也可用于webform      开发环境：Visual Studio 2012 , Sql server 2012

1、【创建项目】打开VS2012，新建项目Fcw.RDLC

select o.id as orderid,o.ordercode,o.opername,o.ordername,o.comname,o.createtime,o.barcode,
      d.id as detailid,d.ordercode detailordercode,d.procode,d.proname,d.promodel,d.pronum
      from fcwOrder o
      join fcwOrderDetails d on d.ordercode=o.ordercode

右键单击已经生成的TableAdapter，选择属性，将名称改为Order

private void Form1_Load(object sender, EventArgs e)
        {
            //绑定list_order
            DataTable dtorder = SQLHelper.GetDataTable(@"select o.id as orderid,o.ordercode,o.opername,o.ordername,o.comname,o.createtime,o.barcode  from fcwOrder o");
            list_order.DataSource = dtorder;
            list_order.DisplayMember = "ordercode";
            list_order.ValueMember = "ordername";
        }

        private void button1_Click(object sender, EventArgs e)
        {
            StringBuilder sb = new StringBuilder();
            //构造多选的order列表
            foreach (object obj in list_order.SelectedItems)
            {
                DataRowView drv = (DataRowView)obj;
                if(drv!=null)
                {
                    sb.Append("‘" + drv.Row["ordercode"].ToString() + "‘,");
                }
            }
            //为report绑定数据源
            if (sb.ToString().Length > 2)
            {

string orderwhere = sb.ToString().Substring(0, sb.ToString().Length - 1);
                string strsql = @"select o.id as orderid,o.ordercode,o.opername,o.ordername,o.comname,o.createtime,o.barcode,
      d.id as detailid,d.ordercode detailordercode,d.procode,d.proname,d.promodel,d.pronum
      from fcwOrder o
      join fcwOrderDetails d on d.ordercode=o.ordercode where o.ordercode in (" + orderwhere + ")";

                DataTable dtorder2 = SQLHelper.GetDataTable(strsql);
                reportViewer1.LocalReport.DataSources.Clear();
                reportViewer1.LocalReport.EnableExternalImages = true;
                reportViewer1.LocalReport.DataSources.Add(new ReportDataSource("Order",dtorder2));
                reportViewer1.LocalReport.SetParameters(new ReportParameter("para_Total",dtorder2.Rows.Count.ToString()));
                reportViewer1.RefreshReport();

            }
        }