asp.net 水晶报表--主从表关联问题

2022-07-15 80酷酷网 80kuku.com

　　asp.net|水晶报表|问题一、使用视图meeting将多表关联整合在一起

二、通过Sql语句筛选数据

三、建立和主从表的关联

四、注意在CrystalReport1表中插入子报表的时候，一定要将主从表的关联字段设置好，否则出乱子

主体代码如下：

/// <summary>
  /// Bind CrystalReport
  /// </summary>
  /// <param name="strS">sql</param>
  private void bdReport(string strS)
  {
   oCR = new CrystalReport1();
   SqlConnection cnn = new SqlConnection(ConfigurationSettings.AppSettings["ConnectionSqlServer"]);

SqlDataAdapter cmd1 = new SqlDataAdapter(strS,cnn);

//Create and fill the DataSet.

DataSet2 ds = new DataSet2();
cmd1.Fill(ds,"meeting");

   // SqlDataAdapter cmd2 = new SqlDataAdapter("select * from realplan where rplanid in (select top 10000 planid from ("+sqlStr+")as a order by planid)", cnn);
   SqlDataAdapter cmd2 = new SqlDataAdapter(SqlIsOper, cnn);

   cmd2.Fill(ds,"realplan");

   //Create the relation between the Authors and Titles tables.
   ds.Relations.Add("mo",
    ds.Tables["meeting"].Columns["planid"],
    ds.Tables["realplan"].Columns["rplanid"]);

//binding reportViewer
oCR.SetDataSource(ds);

this.CrystalReportViewer1.ReportSource = oCR;

   //Close the connection.
   cnn.Close();

  }