创建RDLC子报表

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?