水晶报表主从表的关联

it2022-05-09  29

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();     }

转载于:https://www.cnblogs.com/tuyile006/archive/2006/11/28/574928.html

相关资源:数据结构—成绩单生成器

最新回复(0)