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我必須顯示VB.NET代碼中的數據到水晶報表......我正在做代碼中的所有事情，所以問題在於我必須顯示來自for-each的多個數據循環，這是代碼：報告只顯示最後一條記錄
Private Sub Print_Row(ByVal pp As Boolean)
Dim rptDokument As New ReportDocument, brkop As Integer
Dim rw_mat As DataRow
Dim cn As OracleClient.OracleConnection = New OracleClient.OracleConnection(Gdb_conn)
' Objects used to set the parameters in the report
Dim pCollection As New CrystalDecisions.Shared.ParameterValues
Dim pTSJ As New CrystalDecisions.Shared.ParameterDiscreteValue
Dim pNaziv As New CrystalDecisions.Shared.ParameterDiscreteValue
Dim pKolicina As New CrystalDecisions.Shared.ParameterDiscreteValue
Dim pTezina As New CrystalDecisions.Shared.ParameterDiscreteValue
Try
rptDokument.Load(Gpath & "PakLista.rpt")
pTSJ.Value = barcode.Text
pCollection.Add(pTSJ)
rptDokument.DataDefinition.ParameterFields("pTSJ").ApplyCurrentValues(pCollection)
cn.Open()
Dim myQuery As String = "SELECT S.TSJ,M.NAZ_MAT, S.IBRMAT, S.KOLICINA, S.TEZINA " & _
"FROM TWM_SADRZAJ S, TWM_MATER M, TWM_ATRIBUT A, TWM_PAKIR PAK " & _
"WHERE(S.VLASNIK_MP = M.VLASNIK_MP) " & _
"AND S.IBRMAT = M.IBRMAT " & _
"AND S.ATR_ID = A.ATR_ID (+) " & _
"AND PAK.VLASNIK_MP (+) = S.VLASNIK_MP " & _
"AND PAK.IBRMAT (+) = S.IBRMAT " & _
"AND PAK.PAK (+) = S.PAK " & _
"AND (S.TSJ = '" & barcode.Text & "') " & _
"ORDER BY S.IBRMAT"
Dim da As OracleClient.OracleDataAdapter = New OracleClient.OracleDataAdapter(myQuery, cn)
Dim ds As New DataSet
da.Fill(ds, "TWM_SADRZAJ")
For Each rw_mat In ds.Tables("TWM_SADRZAJ").Rows
If (rw_mat.Item("NAZ_MAT") Is DBNull.Value) Then
pNaziv.Value = ""
Else
pNaziv.Value = CStr(rw_mat.Item("NAZ_MAT"))
End If
If (rw_mat.Item("KOLICINA") Is DBNull.Value) Then
pKolicina.Value = ""
Else
pKolicina.Value = CStr(rw_mat.Item("KOLICINA"))
End If
If (rw_mat.Item("TEZINA") Is DBNull.Value) Then
pTezina.Value = ""
Else
pTezina.Value = CStr(rw_mat.Item("TEZINA"))
End If
pCollection.Add(pNaziv)
rptDokument.DataDefinition.ParameterFields("pNaziv").ApplyCurrentValues(pCollection)
pCollection.Add(pKolicina)
rptDokument.DataDefinition.ParameterFields("pKolicina").ApplyCurrentValues(pCollection)
pCollection.Add(pTezina)
rptDokument.DataDefinition.ParameterFields("pTezina").ApplyCurrentValues(pCollection)
Next rw_mat
If pp Then
Dim frm As New frmPrint_preview
frm.crvDocument.ReportSource = rptDokument
frm.ShowDialog()
Else
Dim pd As New PrintDialog
pd.PrinterSettings = New PrinterSettings
If pd.ShowDialog(Me) Then
For brkop = 1 To pd.PrinterSettings.Copies
rptDokument.PrintOptions.PrinterName = pd.PrinterSettings.PrinterName
rptDokument.PrintToPrinter(1, False, 1, 99999)
Next brkop
End If
End If
Catch Exp As LoadSaveReportException
MsgBox("Incorrect path for loading report.", MsgBoxStyle.Critical, "Load Report Error")
Catch Exp As System.Exception
MsgBox(Exp.Message, MsgBoxStyle.Critical, "General Error")
End Try
End Sub
問題是，在本節：
pCollection.Add(pNaziv) rptDokument.DataDefinition.ParameterFields("pNaziv").ApplyCurrentValues(pCollection)
pCollection.Add(pKolicina) rptDokument.DataDefinition.ParameterFields("pKolicina").ApplyCurrentValues(pCollection)
pCollection.Add(pTezina) rptDokument.DataDefinition.ParameterFields("pTezina").ApplyCurrentValues(pCollection)
它必須爲每個循環來收集所有的數據出來的一面，但問題是沒有母校那裏我把這個代碼它只顯示數據行中的最後一條記錄讓我們說5條記錄在水晶報告中......我知道這是蛋糕的平安，但我是繼電器卡在這裏，所以我希望有一點幫助。