สอบถามหน่อยครับ เรื่องการรับค่าจาก textbox แล้วให้ไปค้นหาใน db เพื่อแสดงออก crystal report

Public Shared Function Datecodelabel1(ByVal SLM_PRD_NAME As String, ByVal SLP_DATE_CODE As String, ByVal BCM_STATUS As String, ByVal SLP_BOX_NO_T As String, ByVal SLP_BOX_NO_F As String) As DataTable

        Dim dt As New DataTable
        strSql = New StringBuilder


        strSql.AppendLine("select distinct  t.slp_prd_name ,t.slp_box_no,substr(t.slp_tray_no,-16,4)as date_code")

        strSql.AppendLine("from fpcs_lot_serial_packing t ")
        strSql.AppendLine("where (slp_prd_name = '" & SLM_PRD_NAME & "' )")
        strSql.AppendLine("and slp_box_no in ( ")
        strSql.AppendLine("select")
        strSql.AppendLine("t.BCM_box_no as box_no")
        strSql.AppendLine("from fpc_box_cap_mstr t ")
        strSql.AppendLine("left join fpc_box_cap_det A on t.bcm_prd_item_code = A.Bcd_Prd_Item_Code and t.bcm_box_no = A.Bcd_Box_No")
        strSql.AppendLine("left join fpc_box_cap_post B on t.bcm_prd_item_code = B.BCP_PRD_ITEM_CODE and t.bcm_box_no = B.BCP_BOX_NO")
        strSql.AppendLine("left join fpc_factory C on t.bcm_support_by = C.FACTORY_CODE")
        strSql.AppendLine("where (bcm_prd_item_code = REPLACE('9G'||'" & SLM_PRD_NAME & "','-','') )")
        strSql.AppendLine("and (A.BCD_PACK_DATE is not null)")
        strSql.AppendLine("and (bcm_status = upper('" & BCM_STATUS & "')) ")
        strSql.AppendLine("and (A.BCD_SEQ_NO = '1')")
        strSql.AppendLine(" ) ")
        strSql.AppendLine("AND (t.slp_box_no >= '" & SLP_BOX_NO_F & "' OR '" & SLP_BOX_NO_F & "' IS NULL)")
        strSql.AppendLine("AND (t.slp_box_no <= '" & SLP_BOX_NO_T & "' || 'Z' OR '" & SLP_BOX_NO_T & "'  IS NULL)")

        strSql.AppendLine("order by slp_prd_name ,slp_box_no,substr(t.slp_tray_no,-16,4)")

        Dim StrQuery As String = ""
        StrQuery = strSql.ToString
        dt = GetDataOracle(strSql.ToString, "SLM_PRD_NAME", constrolacle).Tables(0)
        Return dt

    End Function

Protected Sub btnsearch_Click(ByVal sender As Object, ByVal e As EventArgs) Handles btnsearch.Click
lblmessage.Text = ""
Try
If txtProduct.Text.Length > 12 Then
datecode(txtProduct.Text, "", DDstatus.SelectedValue, txtboxfrom.Text, txtboxto.Text)
End If
Catch ex As Exception
lblmessage.Text = ex.Message()
End Try

End Sub

 Sub datecode(ByVal SLM_PRD_NAME As String, ByVal SLP_DATE_CODE As String, ByVal BCM_STATUS As String, ByVal SLP_BOX_NO_T As String, ByVal SLP_BOX_NO_F As String)
        lblmessage.Text = ""
        Try
            Me.Flag = True
            Dim dt As New System.Data.DataTable
            dt.TableName = "barcode1DPackingRoom"

            dt.Columns.Add(New DataColumn("SLP_PRD_NAME", GetType(String)))
            dt.Columns.Add(New DataColumn("SLP_BOX_NO", GetType(String)))
            dt.Columns.Add(New DataColumn("DATE_CODE", GetType(String)))
            'dt.Columns.Add(New DataColumn("BCM_STATUS", GetType(String)))
            'dt.Columns.Add(New DataColumn("SLP_BOX_NO_T", GetType(String)))
            'dt.Columns.Add(New DataColumn("SLP_BOX_NO_F", GetType(String)))


            Dim DatePackingRoom As DataTable = Datecodelabel1(SLM_PRD_NAME, "", "", "", "")

            If DatePackingRoom.Rows.Count > 0 Then
                For i As Integer = 0 To DatePackingRoom.Rows.Count - 1
                    Dim dr As System.Data.DataRow
                    dr = dt.NewRow
                    dr("SLP_PRD_NAME") = DatePackingRoom.Rows(i).Item("SLP_PRD_NAME")
                    dr("SLP_BOX_NO") = DatePackingRoom.Rows(i).Item("SLP_BOX_NO")
                    dr("DATE_CODE") = DatePackingRoom.Rows(i).Item("DATE_CODE")
                    'dr("BCM_STATUS") = DatePackingRoom.Rows(i).Item("BCM_STATUS")
                    'dr("SLP_BOX_NO_T") = DatePackingRoom.Rows(i).Item("SLP_BOX_NO_T")
                    'dr("SLP_BOX_NO_F") = DatePackingRoom.Rows(i).Item("SLP_BOX_NO_F")
                Next
            End If
            If DatePackingRoom.Rows.Count > 0 Then

                Dim b As String = dt.Rows.Count()
                ViewDataSet = dt

                BindReport(RDSendingReport)
                'Else
                Me.ViewDataSet = Nothing

            End If
        Catch ex As Exception
            lblmessage.Text = ex.Message()
        End Try
    End Sub