OleDbCommand commd = new OleDbCommand(); commd.CommandText = "select * from treeInfo where 1=1 "; oleDbConnection1.Open(); DataSet ds = new DataSet(); OleDbDataAdapter da = new OleDbDataAdapter(commd.CommandText,oleDbConnection1); da.Fill(ds); Report1 pp = new Report1(); pp.SetDataSource(ds.Tables[0]); CrystalReportViewer1.ReportSource = pp; oleDbConnection1.Close();
OleDbConnection conn=new OleDbConnection (strconn);
OleDbDataAdapter app=new OleDbDataAdapter (strselect,conn);
Dataset1 ds1=new Dataset1();
app.Fill(ds1,"b");
CrystalReport1 cr=new CrystalReport1() ;
cr.SetDataSource(ds1.Tables["b"]);
crystalReportViewer1.ReportSource =cr;
//crystalReportViewer1是控件
1、根据生成的DataSet写入硬盘xml文件(含架构的);
2、根据xml文件再设计报表;
3、其他就同你一样了。
最关键,可能他不知到到底刷新的是那个表