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一、创建步骤?
1、建立主报表?
2、建立子报表?,添加参数,用于接受主报表关联字段的值。
3、在主报表中插入"子报表"控件,设置子报表的"常规"和"参数"属性。"常规"属性用于设定子报表的名称,"参数"属性用于将子报表与主报表通过子报表的参数、主报表的关联字段将二者关联起来。?
4、在后台代码中为主报表指定ReportDataSource?
5、在后台代码中注册(也称为订阅)子报表事件?
6、在子报表事件中为子报表指定ReportDataSource?
二、创建示例?
1、建立主报表??
2、建立子报表?,并添加参数ygbm
3、在主报表中插入"子报表"控件,设置子报表的"常规"和"参数"属性。
3.1插入子报表?
3.2设置子报表属性-常规?
3.3设置子报表属性-参数??,名称为子报表中定义的参数名称,值为主报表关联子报表的字段
4、在后台代码中为主报表指定ReportDataSource??
protected void Button1_Click(object sender, EventArgs e)
{
string ygbm = TextBox1.Text ;
DataAccess myda = new DataAccess();
string selStr = "select ygbm,ygxm,(SELECT CASE WHEN ygxb = ‘1‘ THEN ‘男‘ ELSE ‘女‘ END) as ygxb,";
selStr+="ygmz,sfid,zzmm,ygsr,gzsj,byxx,xlmc,zcmc,jnmc,zwmc,lxdh,gzgw,memo from vw_ygb where ygbm=" + ygbm;
DataSet ds = myda.GetDataSet(selStr);
ReportDataSource rds = new ReportDataSource("DataSet1", ds.Tables[0]);
ReportViewer1.LocalReport.SubreportProcessing += new SubreportProcessingEventHandler(LocalReport_SubreportProcessing);
ReportViewer1.Visible = true;
ReportViewer1.LocalReport.DataSources.Clear();
ReportViewer1.LocalReport.DataSources.Add(rds);
ReportViewer1.LocalReport.Refresh();
}
5、在后台代码中注册(也称为订阅)子报表事件??
ReportViewer1.LocalReport.SubreportProcessing += new SubreportProcessingEventHandler(LocalReport_SubreportProcessing);
6、在子报表事件中为子报表指定ReportDataSource??
void LocalReport_SubreportProcessing(object sender, SubreportProcessingEventArgs e)
{
int ygbm = int.Parse(e.Parameters["ygbm"].Values[0]);
DataAccess myda = new DataAccess();
string selStr = "select * from vw_zyb where ygbm="+ygbm;
DataSet ds = myda.GetDataSet(selStr);
ReportDataSource rds = new ReportDataSource("DataSet1", ds.Tables[0]);
e.DataSources.Add(rds);
}?
7、运行结果如下?
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原文地址:http://www.cnblogs.com/xusy/p/4832355.html