水晶报表中不显示数据源里数据怎么办 ？？急~~~~~~~~~~~~~~~~~~~~

[ziyulin0311]

Dim sql As String = "select sum(num) as 数量 from into_cy"
Dim conn As New SqlConnection("server=localhost;uid=sa;pwd= ;database=znh")
Dim adapter As New SqlDataAdapter(sql, conn)
Dim dataset As New DataSet
adapter.Fill(dataset, "into_cy")
GridView1.DataSource = dataset.Tables(0)
GridView1.DataBind()

CrystalReportSource1.ReportDocument.Load(Server.MapPath("CrystalReport1.rpt"))
CrystalReportSource1.ReportDocument.SetDataSource(dataset.Tables("into_cy")) '
CrystalReportViewer1.ReportSource = CrystalReportSource1
CrystalReportSource1.DataBind()
CrystalReportViewer1.DataBind()
问题出在那里？？？

[bccu]

this.reportDocument1 .Load (rpt);
this.reportDocument1 .SetDataSource (ds.Tables["into_cy"]);
this.CrystalReportViewer1 .ReportSource =this.reportDocument1 ;


以下两行不需要的

CrystalReportSource1.DataBind()
CrystalReportViewer1.DataBind()