Imports System.Collections.ObjectModel
Imports System.Collections.Specialized
Imports System.ComponentModel
Imports System.IO
Imports EgtBEAMWALL.Core
Imports EgtBEAMWALL.DataLayer.DatabaseModels
Imports EgtUILib
Imports EgtWPFLib5

Public Class PartVM
   Inherits Core.PartVM

#Region "FIELDS & PROPERTIES"

#Region "General"

   Public ReadOnly Property dVolume As Double
      Get
         Return dVolume
      End Get
   End Property

#End Region    ' General

#Region "Beam"

   Public Overrides Property sOffset As String
      Get
         Return LenToString(m_PartM.dOffset, 3)
      End Get
      Set(value As String)
         Dim dValue As Double
         If StringToLen(value, dValue) Then
            Dim dOldValue As Double = m_PartM.dOffset
            m_PartM.dOffset = dValue
            ' se prima trave della barra sostituisco valore anche a startoffset
            Dim BeamMachGroup As MyMachGroupVM = DirectCast(ParentMachGroupVM, MyMachGroupVM)
            If ParentMachGroupVM.PartVMList(0) Is Me Then
               BeamMachGroup.dStartCut = dValue
            End If
            If Not BeamMachGroup.ReDrawBeamMachgroup() Then
               ' rispristino vecchio valore
               m_PartM.dOffset = dOldValue
               BeamMachGroup.dStartCut = dOldValue
               BeamMachGroup.ReDrawBeamMachgroup()
            End If
            ' resetto validazione del pezzo
            ResetCalcPart()
         Else
            NotifyPropertyChanged(NameOf(sOffset))
         End If
      End Set
   End Property

#End Region    ' Beam

#Region "Wall"

   Public Overrides Property sPOSX As String
      Get
         Select Case Map.refProjectVM.BTLStructureVM.nPROJTYPE
            Case BWType.WALL
               ' se parete, valuto angolo di posizionamento
               Select Case CurrentMachine.NestingCorner
                  Case MCH_CR.TL, MCH_CR.BL
                     Return LenToString(m_PartM.dPOSX, 3)
                  Case Else ' MCH_CR.TR, MCH_CR.BR
                     Return LenToString(m_ParentMachGroupVM.dL - dL - m_PartM.dPOSX, 3)
               End Select
            Case Else
               Return LenToString(m_PartM.dPOSX, 3)
         End Select
      End Get
      Set(value As String)
         Dim dValue As Double
         If StringToLen(value, dValue) Then
            Dim dOldValue As Double = m_PartM.dPOSX
            Dim dNewValue As Double = dValue
            Select Case Map.refProjectVM.BTLStructureVM.nPROJTYPE
               Case BWType.WALL
                  ' se parete, valuto angolo di posizionamento
                  Select Case CurrentMachine.NestingCorner
                     Case MCH_CR.TL, MCH_CR.BL
                        dNewValue = dValue
                     Case Else ' MCH_CR.TR, MCH_CR.BR
                        dNewValue = m_ParentMachGroupVM.dL - dL - dValue
                  End Select
               Case Else
                  m_PartM.dPOSX = dValue
            End Select
            If EgtMovePartInRawPart(nPartId, New Vector3d(dNewValue - dOldValue, 0, 0)) Then
               EgtSetInfo(nPartId, MGR_PRT_POSX, dValue)
               NotifyPropertyChanged(NameOf(sPOSX))
               ' resetto validazione del pezzo
               ResetCalcPart()
            Else
               ' ripristino vecchio valore
               m_PartM.dPOSX = dOldValue
            End If
            EgtDraw()
         Else
            NotifyPropertyChanged(NameOf(sPOSX))
         End If
      End Set
   End Property

   Public Overrides Property sPOSY As String
      Get
         Select Case Map.refProjectVM.BTLStructureVM.nPROJTYPE
            Case BWType.WALL
               ' valuto angolo di posizionamento
               Select Case CurrentMachine.NestingCorner
                  Case MCH_CR.TL, MCH_CR.TR
                     Return LenToString(m_ParentMachGroupVM.dW - dW - m_PartM.dPOSY, 3)
                  Case Else ' MCH_CR.BL, MCH_CR.BR
                     Return LenToString(m_PartM.dPOSY, 3)
               End Select
            Case Else
               Return LenToString(m_PartM.dPOSY, 3)
         End Select
      End Get
      Set(value As String)
         Dim dValue As Double
         If StringToLen(value, dValue) Then
            Dim dOldValue As Double = m_PartM.dPOSY
            Dim dNewValue As Double = dValue
            ' valuto angolo di posizionamento
            Select Case Map.refProjectVM.BTLStructureVM.nPROJTYPE
               Case BWType.WALL
                  Select Case CurrentMachine.NestingCorner
                     Case MCH_CR.TL, MCH_CR.TR
                        dNewValue = m_ParentMachGroupVM.dW - dW - dValue
                     Case MCH_CR.BL, MCH_CR.BR
                        dNewValue = dValue
                  End Select
               Case Else
                  m_PartM.dPOSY = dValue
            End Select
            If EgtMovePartInRawPart(nPartId, New Vector3d(0, dNewValue - dOldValue, 0)) Then
               EgtSetInfo(nPartId, MGR_PRT_POSY, dValue)
               NotifyPropertyChanged(NameOf(sPOSY))
               ' resetto validazione del pezzo
               ResetCalcPart()
            Else
               ' ripristino vecchio valore
               m_PartM.dPOSY = dOldValue
            End If
            EgtDraw()
         Else
            NotifyPropertyChanged(NameOf(sPOSY))
         End If
      End Set
   End Property

   Public Property bFLIP As Boolean
      Get
         Return m_PartM.nFLIP <> 0
      End Get
      Set(value As Boolean)
         If Map.refProjectVM.bCalcRunning Then Return
         ' se MachGroup gia' mandato in produzione, esco
         If m_ParentMachGroupVM.nProduction_State >= ItemState.Assigned Then Return
         If (value And m_PartM.nFLIP = 0) OrElse (Not value And m_PartM.nFLIP <> 0) Then
            ' salvo posizione 
            Dim dTempPosX As Double = m_PartM.dPOSX
            Dim dTempPosY As Double = m_PartM.dPOSY
            ' tolgo il pezzo dal grezzo
            EgtRemovePartFromRawPart(nPartId)
            ' recupero layer del box
            Dim nBoxLayerId As Integer = EgtGetFirstNameInGroup(nPartId, "Box")
            ' recupero box del layer box
            Dim b3Box As New BBox3d
            EgtGetBBoxGlob(nBoxLayerId, GDB_BB.STANDARD, b3Box)
            If EgtRotate(nPartId, b3Box.Center, Vector3d.X_AX, 180, GDB_RT.GLOB) Then
               m_PartM.nFLIP = If(value, 180, 0)
               EgtSetInfo(nPartId, MGR_PRT_FLIP, If(value, 180, 0))
            Else
               NotifyPropertyChanged(NameOf(bFLIP))
            End If
            ' recupero box del pezzo
            Dim b3Part As New BBox3d
            EgtGetBBoxGlob(nPartId, GDB_BB.STANDARD, b3Part)
            ' calcolo distanza tra i box
            Dim vtDeltaBox As Vector3d = b3Box.Min - b3Part.Min
            ' reinserisco il pezzo nel grezzo
            EgtAddPartToRawPart(nPartId, New Point3d(dTempPosX - vtDeltaBox.x, dTempPosY - vtDeltaBox.y, 0), ParentMachGroupVM.MyMachGroupM.nRawPartId)
            ' lo riseleziono
            EgtSelectObj(nPartId)
            ' resetto validazione del pezzo
            ResetCalcPart()
            EgtDraw()
         End If
      End Set
   End Property

#End Region    ' Wall

   ' Definizione comandi
   Private m_cmdBackRotation As ICommand
   Private m_cmdForwardRotation As ICommand

#End Region    ' FIELDS & PROPERTIES

#Region "CONSTRUCTOR"

   Sub New(PartM As PartM, ParentMachGroupVM As MyMachGroupVM)
      MyBase.New(PartM, ParentMachGroupVM)
      ' aggiorno stato calcolo
      CalcGlobalUpdate()
      ' aggiorno stato di produzione
      ReadProductionData()
   End Sub

#End Region    ' CONSTRUCTOR

#Region "METHODS"

#Region "Part"

   Friend Sub ResetOffset()
      m_PartM.dOffset = WarehouseHelper.GetOffset(nType)
      NotifyPropertyChanged(NameOf(sOffset))
   End Sub

   ' Manage the MainWindow_Unloaded event. This method is invoked by the cmdMainWindow_Unloaded.
   Public Overrides Sub DeletePart()
      ' elimino pezzo copia
      EgtRemovePartFromRawPart(Me.nPartId)
      ' Recupero Id BTLPart originale
      Dim BTLPart As BTLPartVM = BTLPartVM.RetrieveBTLPartFromPart(nPartId)
      EgtErase(Me.nPartId)
      ' rimuovo dalla lista pezzi
      Dim Index As Integer = ParentMachGroupVM.PartVMList.IndexOf(ParentMachGroupVM.PartVMList.FirstOrDefault(Function(x) x.nPartId = nPartId))
      If Index = 0 Then
         If ParentMachGroupVM.PartVMList.Count > 1 Then
            ParentMachGroupVM.SelPart = ParentMachGroupVM.PartVMList(0)
         Else
            ParentMachGroupVM.SelPart = Nothing
         End If
      ElseIf Index = ParentMachGroupVM.PartVMList.Count - 1 Then
         If ParentMachGroupVM.PartVMList.Count > 1 Then
            ParentMachGroupVM.SelPart = ParentMachGroupVM.PartVMList(ParentMachGroupVM.PartVMList.Count - 2)
         Else
            ParentMachGroupVM.SelPart = Nothing
         End If
      Else
         ParentMachGroupVM.SelPart = ParentMachGroupVM.PartVMList(Index - 1)
      End If
      ParentMachGroupVM.PartVMList.Remove(Me)
      If nType = MachineType.BEAM Then
         Dim BeamParentMachGroup As MyMachGroupVM = DirectCast(ParentMachGroupVM, MyMachGroupVM)
         If Not IsNothing(BeamParentMachGroup) Then BeamParentMachGroup.ReDrawBeamMachgroup()
      End If
      ' aggiorno contatore pezzi usati in Prod
      If Not IsNothing(BTLPart) Then BTLPart.RefreshPartInProd()
      EgtDraw()
   End Sub

   Private Sub Rotate(IsPositive As Boolean)
      ' salvo posizione 
      Dim dTempPosX As Double = m_PartM.dPOSX
      Dim dTempPosY As Double = m_PartM.dPOSY
      ' tolgo il pezzo dal grezzo
      EgtRemovePartFromRawPart(nPartId)
      ' recupero layer del box
      Dim nBoxLayerId As Integer = EgtGetFirstNameInGroup(nPartId, "Box")
      ' recupero box del layer box
      Dim b3Box As New BBox3d
      EgtGetBBoxGlob(nBoxLayerId, GDB_BB.STANDARD, b3Box)
      ' se invertito lo reinverto
      Dim bFliped As Boolean = bFLIP
      If bFliped Then EgtRotate(nPartId, b3Box.Center, Vector3d.X_AX, 180, GDB_RT.GLOB)
      Dim dAng As Double = If(IsPositive, 90, -90)
      ' eseguo rotazione
      Dim bOk As Boolean = EgtRotate(nPartId, b3Box.Center, -Vector3d.Z_AX, dAng, GDB_RT.GLOB)
      If bOk Then
         Dim TempRot = m_PartM.dROT
         TempRot += dAng
         If TempRot >= 360 Then
            TempRot -= 360
         ElseIf TempRot < 0 Then
            TempRot += 360
         End If
         m_PartM.dROT = TempRot
         EgtSetInfo(nPartId, MGR_PRT_ROT, m_PartM.dROT)
      End If
      ' ripristino eventuale inversione
      If bFliped Then EgtRotate(nPartId, b3Box.Center, Vector3d.X_AX, 180, GDB_RT.GLOB)
      ' recupero box del pezzo
      Dim b3Part As New BBox3d
      EgtGetBBoxGlob(nPartId, GDB_BB.STANDARD, b3Part)
      'aggiorno box del box con rotazione
      EgtGetBBoxGlob(nBoxLayerId, GDB_BB.STANDARD, b3Box)
      ' calcolo distanza tra i box
      Dim vtDeltaBox As Vector3d = b3Box.Min - b3Part.Min   ' Vector3d.NULL
      ' calcolo posizione rispetto al riferimento
      Select Case Map.refProjectVM.BTLStructureVM.nPROJTYPE
         Case BWType.WALL
            ' se parete, valuto angolo di posizionamento
            Select Case CurrentMachine.NestingCorner
               Case MCH_CR.TL
                  'vtDeltaBox = New Vector3d(b3Box.Min.x - b3Part.Min.x, b3Box.Max.y - b3Part.Max.y, 0)
                  dTempPosY = dTempPosY - dW + dL
               Case MCH_CR.BL
                  'vtDeltaBox = b3Box.Min - b3Part.Min
                  ' non cambio posizioni
               Case MCH_CR.TR
                  'vtDeltaBox = b3Box.Max - b3Part.Max
                  dTempPosX = dTempPosX - dL
                  dTempPosY = dTempPosY + dW - dL
               Case MCH_CR.BR
                  'vtDeltaBox = New Vector3d(b3Box.Max.x - b3Part.Max.x, b3Box.Min.y - b3Part.Min.y, 0)
                  dTempPosX = dTempPosX - dL
            End Select
         Case Else
            ' non cambio nulla
      End Select
      ' reinserisco il pezzo nel grezzo
      EgtAddPartToRawPart(nPartId, New Point3d(dTempPosX - vtDeltaBox.x, dTempPosY - vtDeltaBox.y, 0), ParentMachGroupVM.MyMachGroupM.nRawPartId)
      ' lo riseleziono
      EgtSelectObj(nPartId)
      ' resetto validazione del pezzo
      ResetCalcPart()
      NotifyPropertyChanged(NameOf(sROT))
   End Sub

   Friend Sub SelectBTLPart()
      ' eseguo la selezione nella lista pezzi
      Dim nBTLPartId As Integer = MyMachGroupPanelM.DuploGetOriginal(nPartId)
      If Not IsNothing(nBTLPartId) Then
         Map.refProjectVM.BTLStructureVM.SetSelBTLPart(Map.refProjectVM.BTLStructureVM.BTLPartVMList.FirstOrDefault(Function(x) x.nPartId = nBTLPartId))
      End If
   End Sub

   Private Sub ReadProductionData()
      If IsNothing(Map.refProdManagerVM.CurrProd) OrElse IsNothing(Map.refProdManagerVM.CurrProd.nProdId) Then Return
      Dim PartModel As PartModel = DbControllers.m_PartController.FindByPartId(Map.refProdManagerVM.CurrProd.nProdId, nPartId)
      If Not IsNothing(PartModel) Then
         PartM.SetProductionState(PartModel.State)
         PartM.dtStartTime = PartModel.DtStart
         PartM.dtEndTime = PartModel.DtEnd
         ' verifico se bloccare o sbloccare duplo
         Dim bLocked As Boolean = True
         EgtDuploGetLocked(nPartId, bLocked)
         If PartModel.State <= ItemState.ND And bLocked Then
            ' recupero se Duplo da aggiornare
            Dim bDuploToUpdate As Boolean = False
            EgtGetInfo(nPartId, GDB_SI_DUPTOUPDATE, bDuploToUpdate)
            ' verifico tipo di progetto
            Dim nBtlInfoId As Integer = EgtGetFirstNameInGroup(GDB_ID.ROOT, BTLINFO)
            Dim nBWType As Integer = 0
            EgtGetInfo(nBtlInfoId, BTL_GEN_PROJTYPE, nBWType)
            Dim DuploRot As Integer = 0
            Dim DuploFlip As Integer = 0
            Dim QParams As New Dictionary(Of String, Dictionary(Of String, String))
            ' se da aggiornare, leggo info del duplo che verrebbero perse
            If bDuploToUpdate Then
               ' recupero ROT (gradi) e FLIP (gradi) per non perderli
               EgtGetInfo(nPartId, MGR_PRT_ROT, DuploRot)
               EgtGetInfo(nPartId, MGR_PRT_FLIP, DuploFlip)
               If DuploFlip <> 0 Then DuploFlip = 180
               If nBWType = BWType.WALL Then
                  ' ciclo sugli outline
                  Dim nOutlineLayer As Integer = EgtGetFirstNameInGroup(nPartId, OUTLINE)
                  If nOutlineLayer <> GDB_ID.NULL Then
                     Dim nGlobPRId As Integer = 1
                     Dim nOutlineId As Integer = EgtGetFirstInGroup(nOutlineLayer)
                     While nOutlineId <> GDB_ID.NULL
                        ' verifico che sia outline
                        Dim nPRC As Integer
                        If EgtGetInfo(nOutlineId, MGR_FTR_PRC, nPRC) Then
                           Dim nPRId As Integer = 0
                           If Not EgtGetInfo(nOutlineId, MGR_FTR_PRID, nPRId) Then
                              EgtSetInfo(nOutlineId, MGR_FTR_PRID, nGlobPRId)
                              nPRId = nGlobPRId
                              nGlobPRId += 1
                           End If
                           Dim sKey As String = nPRId & "." & nPRC
                           QParams.Add(sKey, New Dictionary(Of String, String))
                           For QIndex = 1 To 10
                              Dim QKey As String = "Q" & QIndex.ToString("D2")
                              Dim QValue As Integer = 0
                              If EgtGetInfo(nOutlineId, QKey, QValue) Then
                                 QParams(sKey).Add(QKey, QValue)
                              End If
                           Next
                        End If
                        nOutlineId = EgtGetNext(nOutlineId)
                     End While
                  End If
                  ' ciclo sulle feature
                  Dim nFeatureLayer As Integer = EgtGetFirstNameInGroup(nPartId, PROCESSINGS)
                  If nFeatureLayer <> GDB_ID.NULL Then
                     Dim nFeatureId As Integer = EgtGetFirstInGroup(nFeatureLayer)
                     While nFeatureId <> GDB_ID.NULL
                        ' verifico che sia feature
                        Dim nPRC As Integer
                        If EgtGetInfo(nFeatureId, MGR_FTR_PRC, nPRC) Then
                           Dim nPRId As Integer = 0
                           EgtGetInfo(nFeatureId, MGR_FTR_PRID, nPRId)
                           Dim sKey As String = nPRId & "." & nPRC
                           QParams.Add(sKey, New Dictionary(Of String, String))
                           For QIndex = 1 To 10
                              Dim QKey As String = "Q" & QIndex.ToString("D2")
                              Dim QValue As Integer = 0
                              If EgtGetInfo(nFeatureId, QKey, QValue) Then
                                 QParams(sKey).Add(QKey, QValue)
                              End If
                           Next
                        End If
                        nFeatureId = EgtGetNext(nFeatureId)
                     End While
                  End If
               End If
            End If
            ' sblocco Duplo
            EgtDuploResetLocked(nPartId)
            ' se da aggiornare, ripristino info del duplo che verrebbero perse
            If bDuploToUpdate Then
               ' ripristino i valori di ROT e FLIP
               EgtSetInfo(nPartId, MGR_PRT_ROT, DuploRot)
               EgtSetInfo(nPartId, MGR_PRT_FLIP, DuploFlip)
               If nBWType = BWType.WALL Then
                  ' ciclo sugli outline
                  Dim nOutlineLayer As Integer = EgtGetFirstNameInGroup(nPartId, OUTLINE)
                  If nOutlineLayer <> GDB_ID.NULL Then
                     Dim nOutlineId As Integer = EgtGetFirstInGroup(nOutlineLayer)
                     While nOutlineId <> GDB_ID.NULL
                        ' verifico che sia feature
                        Dim nPRC As Integer
                        If EgtGetInfo(nOutlineId, MGR_FTR_PRC, nPRC) Then
                           Dim nPRId As Integer = 0
                           EgtGetInfo(nOutlineId, MGR_FTR_PRID, nPRId)
                           Dim sKey As String = nPRId & "." & nPRC
                           ' ripristino parametri Q
                           If QParams.ContainsKey(sKey) Then
                              For Each QPar In QParams(sKey)
                                 EgtSetInfo(nOutlineId, QPar.Key, QPar.Value)
                              Next
                           End If
                        End If
                        nOutlineId = EgtGetNext(nOutlineId)
                     End While
                  End If
                  ' ciclo sulle feature
                  Dim nFeatureLayer As Integer = EgtGetFirstNameInGroup(nPartId, PROCESSINGS)
                  If nFeatureLayer <> GDB_ID.NULL Then
                     Dim nFeatureId As Integer = EgtGetFirstInGroup(nFeatureLayer)
                     While nFeatureId <> GDB_ID.NULL
                        ' verifico che sia feature
                        Dim nPRC As Integer
                        If EgtGetInfo(nFeatureId, MGR_FTR_PRC, nPRC) Then
                           Dim nPRId As Integer = 0
                           EgtGetInfo(nFeatureId, MGR_FTR_PRID, nPRId)
                           Dim sKey As String = nPRId & "." & nPRC
                           ' ripristino parametri Q
                           If QParams.ContainsKey(sKey) Then
                              For Each QPar In QParams(sKey)
                                 EgtSetInfo(nFeatureId, QPar.Key, QPar.Value)
                              Next
                           End If
                        End If
                        nFeatureId = EgtGetNext(nFeatureId)
                     End While
                  End If
               End If
            End If
            nProduction_State = ItemState.ND
            NotifyPropertyChanged(NameOf(Background))
            If bDuploToUpdate Then
               ResetCalcTotalPart()
            End If
         ElseIf PartModel.State > ItemState.ND And Not bLocked Then
            EgtDuploSetLocked(nPartId)
         End If
      End If
   End Sub

#End Region    ' Part

#Region "Feature"

   Protected Overrides Sub CreateBTLFeatureVMList()
      Dim all As List(Of BTLFeatureVM) = (From BTLFeatureM In m_PartM.GetBTLFeatures()
                                          Select New BTLFeatureVM(BTLFeatureM)).ToList()

      For Each BTLFeatureVM As BTLFeatureVM In all
         AddHandler BTLFeatureVM.PropertyChanged, AddressOf OnBTLFeatureVMPropertyChanged
         For Each BTLParamVM As BTLParamVM In BTLFeatureVM.QBTLParamVMList
            AddHandler BTLParamVM.PropertyChanged, AddressOf OnBTLQParamVMPropertyChanged
         Next
         AddHandler BTLFeatureVM.QBTLParamVMList.CollectionChanged, AddressOf OnBTLQParamVMListChanged
      Next

      m_FeatureVMList = New ObservableCollection(Of Core.BTLFeatureVM)(all)
      AddHandler m_FeatureVMList.CollectionChanged, AddressOf OnBTLFeatureVMListChanged

   End Sub

   Friend Sub ResetCalcTotalPart()
      ResetCalcPart()
      For Each Feature In FeatureVMList
         DirectCast(Feature, BTLFeatureVM).ResetCalcFeature()
      Next
   End Sub

#End Region    ' Feature

#End Region    ' METHODS

#Region "COMMANDS"

#Region "BackRotation"

   Public ReadOnly Property BackRotation_Command As ICommand
      Get
         If m_cmdBackRotation Is Nothing Then
            m_cmdBackRotation = New Command(AddressOf BackRotation)
         End If
         Return m_cmdBackRotation
      End Get
   End Property

   Public Sub BackRotation()
      ' se sta calcolando, esco subito
      If Map.refProjectVM.bCalcRunning Then Return
      ' se MachGroup gia' mandato in produzione, esco
      If m_ParentMachGroupVM.nProduction_State >= ItemState.Assigned Then Return
      Rotate(False)
      EgtDraw()
   End Sub

#End Region ' BackRotation

#Region "ForwardRotation"

   Public ReadOnly Property ForwardRotation_Command As ICommand
      Get
         If m_cmdForwardRotation Is Nothing Then
            m_cmdForwardRotation = New Command(AddressOf ForwardRotation)
         End If
         Return m_cmdForwardRotation
      End Get
   End Property

   Public Sub ForwardRotation()
      If Map.refProjectVM.bCalcRunning Then Return
      ' se MachGroup gia' mandato in produzione, esco
      If m_ParentMachGroupVM.nProduction_State >= ItemState.Assigned Then Return
      Rotate(True)
      EgtDraw()
   End Sub

#End Region ' ForwardRotation

#End Region    ' COMMANDS

#Region "EVENTS"

   Protected Overrides Sub OnBTLFeatureVMPropertyChanged(sender As Object, e As PropertyChangedEventArgs)
      Select Case e.PropertyName
         Case NameOf(sender.bDO)
            ' setto pezzo da ricalcolare
            ResetCalcTotalPart()
      End Select
   End Sub

   Private Sub OnBTLQParamVMListChanged(sender As Object, e As NotifyCollectionChangedEventArgs)
      If Not IsNothing(e.NewItems) AndAlso e.NewItems.Count > 0 Then
         For Each BTLParamVM As BTLParamVM In e.NewItems
            AddHandler BTLParamVM.PropertyChanged, AddressOf OnBTLQParamVMPropertyChanged
         Next
      End If
      If Not IsNothing(e.OldItems) AndAlso e.OldItems.Count > 0 Then
         For Each BTLParamVM As BTLParamVM In e.OldItems
            RemoveHandler BTLParamVM.PropertyChanged, AddressOf OnBTLQParamVMPropertyChanged
         Next
      End If
   End Sub

   Private Sub OnBTLQParamVMPropertyChanged(sender As Object, e As PropertyChangedEventArgs)
      Select Case e.PropertyName
         Case NameOf(sender.dValue), NameOf(sender.sValue)
            ' setto pezzo da ricalcolare
            ResetCalcTotalPart()
      End Select
   End Sub

#End Region    ' EVENTS

End Class