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The author:(作者)delv
published in(发表于) 2014/1/6 8:49:04
asp.net,水晶报表

asp.net 水晶报表-主从表关联问题_[Asp.Net教程]

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:


///


/// Bind CrystalReport
///

/// sql
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();

}


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