以顾客和订单为例,一个顾客有多个订单.
主报表是顾客,子报表是订单,创建customer.rdlc,order.rdlc
customer.rdlc文本框属性,操作,转到报表,填写报表名,添加参数.
order.rdlc添加参数customerID
ReportView控件:
protected void rpViewer_Drillthrough(object sender, DrillthroughEventArgs e)
{
LocalReport lp = (LocalReport)e.Report;
string customerID= lp.GetParameters()["customerID"].Values[0].Trim();
List<Employee> lstOrder = OrderBLL.GetCustomerOrders(customerID);
lp.DataSources.Clear();
lp.DataSources.Add(new ReportDataSource("DataSet1", lstOrder));
}