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我在水晶报表中显示连接表的数据内容时遇到问题,我的 sql 查询很好,它显示了我自己的数据,但是当我填充水晶报表数据源并显示水晶重复副本和更多数据时,我的代码是:

   Dim rep As CrystalReport1 = New CrystalReport1()
    Dim objcon = New SqlConnection("data source=(local);initial catalog=hesabres;user id='sa';password='Maysam7026'")
    Dim objcom = New SqlCommand
    Dim objdata As New DataTable
    Dim objdr As SqlDataReader
    objcom.CommandText = " SELECT customer.customer_name, customer.customer_tel, orders.order_stuff_name, orders.order_number" & _
" FROM   hesabres.dbo.orders orders inner JOIN hesabres.dbo.customer customer ON orders.order_customer_id=customer.customer_id"

    objcom.Connection = objcon
    objcon.Open()
    objdr = objcom.ExecuteReader
    objdata.Load(objdr)
    rep.SetDataSource(objdata)
    CrystalReportViewer1.ReportSource = rep
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1 回答 1

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尝试更改这 2 行的顺序:

rep.SetDataSource(objdata)
CrystalReportViewer1.ReportSource = rep

至:

CrystalReportViewer1.ReportSource = rep
rep.SetDataSource(objdata)
于 2012-07-20T14:06:46.953 回答