Imports System.Collections.ObjectModel
Imports System.Data.SQLite
Imports System.IO
Imports EgtUILib
Imports EgtWPFLib5
Imports System.Text.RegularExpressions

Public Class Slab
   Inherits VMBase

#Region "FIELDS & PROPERTIES"

   Private m_bRefreshImage As Boolean = False

   Friend Const DB_SLABS As String = "Slabs"
   Friend Const DB_ID As String = "Id"
   Friend Const DB_IMAGEPATH As String = "ImagePath"
   Friend Const DB_STATE As String = "State"
   Friend Const DB_PROJASSIGNEDTO As String = "ProjectAssignedTo"
   Friend Const DB_MATERIAL As String = "Material"
   Friend Const DB_THICKNESS As String = "Thickness"
   Friend Const DB_WAREHOUSEPOS As String = "WarehousePosition"
   Friend Const DB_ADDEDDATE As String = "AddedDate"
   Friend Const DB_ISSELECTED As String = "IsSelected"
   Friend Const DB_TIMESTAMP As String = "TimeStamp"

   Friend Const DB_DATATIME As String = "DataTime"

   Friend Shared IndexAddedDate As Integer = 7

   Friend Shared m_IsEnabledBtn As Action(Of Boolean)

   Public Enum StateOpt As Integer
      AVAILABLE = 1
      ASSIGNED = 2
      TAKEN = 3
   End Enum

   Public ReadOnly Property CapsLock As String
      Get
         If MainData.bCapsLock Then
            Return "Upper"
         End If
         Return "Normal"
      End Get
   End Property

   Private m_IsModifiedId As Boolean = False
   Friend ReadOnly Property IsModifiedId As Boolean
      Get
         Return m_IsModifiedId
      End Get
   End Property
   Private m_OrigId As String
   Friend ReadOnly Property OrigId As String
      Get
         Return m_OrigId
      End Get
   End Property

   Private m_Id As String
   Public Property Id As String
      Get
         SplitID(m_Id, m_sNbrID, m_sNameBlock)
         RefreshPage()
         Return m_Id
      End Get
      Set(value As String)
         SetID(value)
      End Set
   End Property

   ' assegno il valore di ID alla proprietà privata
   Private Sub SetID(value As String)
      If Not String.IsNullOrWhiteSpace(value) Then
         m_Id = value
         m_IsModifiedId = m_Id <> m_OrigId
      Else
         NotifyPropertyChanged("Id")
      End If
      m_IsEnabledBtn(IsValid And IsModified)
      If Not String.IsNullOrWhiteSpace(m_IdError) Then
         LibMap.refStatusBarVM.SetOutputMessage(m_IdError, 5, MSG_TYPE.ERROR_)
      End If
   End Sub

   '-------------------------INIZIO NUOVA GESTIONE ID -------------------------
   Private m_sOrigNbrID As String = String.Empty
   Private m_sNbrID As String = String.Empty
   Public Property sNbrID As String
      Get
         Return m_sNbrID
      End Get
      Set(value As String)
         Dim nVal As Integer = 0
         If Not StringToInt(value, nVal) Then
            m_sNbrID = value
         Else
            m_sNbrID = GetNbrToString(nVal)
         End If
         ' eventualmente ricostruisco il nuovo valore Identificativo
         BuildID()
         RefreshPage()
      End Set
   End Property

   Private m_sOrigNameBlock As String = String.Empty
   Private m_sNameBlock As String = String.Empty
   Public Property sNameBlock As String
      Get
         Return m_sNameBlock
      End Get
      Set(value As String)
         If m_sNameBlock.Trim <> value.Trim Then
            ' se il valore indicato è uguale a quello iniziale allora recupero l'indice originale
            If value.Trim <> m_sOrigNameBlock Then
               ' azzero il contatore e cerco il primo indice libero
               m_sNbrID = GenerateIdNbr(value)
            Else
               m_sNbrID = m_sOrigNbrID
            End If
            m_sNameBlock = value
            BuildID()
            RefreshPage()
         End If
      End Set
   End Property

   ' ricevuto l'ID della lastra estrae il nome del blocco e l'indice
   Friend Shared Sub SplitID(ByVal sID As String, ByRef sRefNbr As String, ByRef sRefNameBlock As String)
      Dim sItems As String() = sID.Split("-"c)
      Dim bOk As Boolean = False
      If sItems.Count = 2 Then
         ' verifico che il secondo termine sia un numero
         Dim nVal As Integer = 0
         If StringToInt(sItems(1), nVal) Then
            ' allora assegno i valori 
            sRefNameBlock = sItems(0).Trim
            sRefNbr = GetNbrToString(nVal)
            bOk = True
         End If
      End If
      If bOk And Not MainData.bEnableTextId Then Return
      ' altimenti devo nascondere il campo Block e lasciare attivo solo il campo ID
      sRefNbr = sID
   End Sub

   ' assegnato l'indice restituisco il valore in formato stringa aggiugendo gli zeri
   Friend Shared Function GetNbrToString(nVal As Integer) As String
      Dim sVal As String = String.Empty
      If nVal < 10 Then
         sVal = "00" & nVal.ToString
      ElseIf nVal > 10 And nVal < 100 Then
         sVal = "0" & nVal.ToString
      Else
         sVal = nVal.ToString
      End If
      Return sVal.Trim
   End Function

   Private Sub BuildID()
      If Not String.IsNullOrEmpty(m_sNameBlock) Then
         m_Id = m_sNameBlock.Trim & " - " & m_sNbrID.Trim
      Else
         m_Id = m_sNbrID
      End If
      ' assegno il valore alla proprietà
      SetID(m_Id)
   End Sub

   Private Sub RefreshPage()
      NotifyPropertyChanged("sNbrID")
      NotifyPropertyChanged("sNameBlock")
   End Sub

   '-------------------------FINE NUOVA GESTIONE ID -------------------------

   Public ReadOnly Property GraphicalImagePath As BitMapImage
      Get
         Dim src As BitMapImage = New BitMapImage()
         src.BeginInit()
         src.DecodePixelWidth = 256
         If m_bRefreshImage Then
            ' se immagine modificata allora deve essere ricaricata
            src.CacheOption = BitmapCacheOption.None
            src.UriCachePolicy = New Net.Cache.RequestCachePolicy(Net.Cache.RequestCacheLevel.BypassCache)
            src.CacheOption = BitmapCacheOption.OnLoad
            src.CreateOptions = BitmapCreateOptions.IgnoreImageCache
            m_bRefreshImage = False
         Else
            src.CacheOption = BitmapCacheOption.OnLoad
         End If

         src.UriSource = New Uri(m_ImagePath, UriKind.Absolute)
         src.EndInit()
         Return src
      End Get
   End Property

   Private m_IsModifiedImagePath As Boolean = False
   Friend ReadOnly Property IsModifiedImagePath As Boolean
      Get
         Return m_IsModifiedImagePath
      End Get
   End Property
   Private m_OrigImagePath As String
   Private m_ImagePath As String
   Public Property ImagePath As String
      Get
         Return m_ImagePath
      End Get
      Set(value As String)
         If Not String.IsNullOrWhiteSpace(value) Then
            m_ImagePath = value
            m_IsModifiedImagePath = m_ImagePath <> m_OrigImagePath
         Else
            NotifyPropertyChanged("ImagePath")
         End If
         m_IsEnabledBtn(IsValid And IsModified)
         If Not String.IsNullOrWhiteSpace(m_ImagePathError) Then
            LibMap.refStatusBarVM.SetOutputMessage(m_ImagePathError, 5, MSG_TYPE.ERROR_)
         End If
      End Set
   End Property

   Public Function NewPhotoPath(Newpath As String) As Boolean
      Dim bOk As Boolean = False
      ' devo ricaricare l'immagine nella scena senza assegnare la db il nome del file
      bOk = PhotoMap.refDetailPageVM.LoadPhoto(Newpath)
      EgtZoom(ZM.ALL)
      m_bRefreshImage = True
      NotifyPropertyChanged("GraphicalImagePath")
      Return bOk
   End Function

   Private m_IsModifiedState As Boolean = False
   Friend ReadOnly Property IsModifiedState As Boolean
      Get
         Return m_IsModifiedState
      End Get
   End Property

   Private m_OrigState As StateOpt
   Private m_State As StateOpt
   Private m_LastState As StateOpt
   Public Property State As StateOpt
      Get
         Return m_State
      End Get
      Set(value As StateOpt)
         m_LastState = m_State
      End Set
   End Property

   Public Function SetStatus(nStatus As StateOpt) As Boolean
      Dim sMessage As String = String.Empty
      Select Case nStatus
         Case StateOpt.TAKEN
            If String.IsNullOrEmpty(Me.ProjectAssignedTo) Then Return False
            sMessage = String.Format(EgtMsg(92202), Me.ProjectAssignedTo & vbCrLf)
            If MessageBox.Show(sMessage, EgtMsg(92201), MessageBoxButton.OKCancel, MessageBoxImage.Question) = MessageBoxResult.Cancel Then
               Return False
            End If
         Case StateOpt.ASSIGNED
            If Not MainData.bIsOmagOFFICE AndAlso String.IsNullOrEmpty(Me.ProjectAssignedTo) Then
               sMessage = String.Format(EgtMsg(92203), Me.ProjectAssignedTo & vbCrLf)
               If MessageBox.Show(sMessage, EgtMsg(92201), MessageBoxButton.OKCancel, MessageBoxImage.Question) = MessageBoxResult.Cancel Then
                  Return False
               End If
            End If
         Case StateOpt.AVAILABLE
            If Not MainData.bIsOmagOFFICE AndAlso Not String.IsNullOrEmpty(Me.ProjectAssignedTo) Then
               sMessage = String.Format(EgtMsg(92204), Me.ProjectAssignedTo & vbCrLf)
               If MessageBox.Show(sMessage, EgtMsg(92201), MessageBoxButton.OKCancel, MessageBoxImage.Question) = MessageBoxResult.Cancel Then
                  Return False
               End If
            End If
      End Select
      m_State = nStatus
      m_IsModifiedState = m_State <> m_OrigState
      m_IsEnabledBtn(IsValid And IsModified)
      Return True
   End Function

   Private m_IsModifiedProjectAssignedTo As Boolean = False
   Friend ReadOnly Property IsModifiedProjectAssignedTo As Boolean
      Get
         Return m_IsModifiedProjectAssignedTo
      End Get
   End Property
   Private m_OrigProjectAssignedTo As String
   Private m_ProjectAssignedTo As String
   Public Property ProjectAssignedTo As String
      Get
         Return m_ProjectAssignedTo
      End Get
      Set(value As String)
         m_ProjectAssignedTo = value
         m_IsModifiedProjectAssignedTo = m_ProjectAssignedTo <> m_OrigProjectAssignedTo
         m_IsEnabledBtn(IsValid And IsModified)
      End Set
   End Property

   Private m_IsModifiedMaterial As Boolean = False
   Friend ReadOnly Property IsModifiedMaterial As Boolean
      Get
         Return m_IsModifiedMaterial
      End Get
   End Property

   Private m_OrigMaterial As String
   Private m_Material As String
   Public Property Material As String
      Get
         Return m_Material
      End Get
      Set(value As String)
         m_Material = value
         m_IsModifiedMaterial = m_Material <> m_OrigMaterial
         m_IsEnabledBtn(IsValid And IsModified)
         NotifyPropertyChanged("Material")
      End Set
   End Property
   Public Sub SetMaterial(sMaterial As String)
      m_Material = sMaterial
      NotifyPropertyChanged("Material")
   End Sub

   Private m_IsModifiedThickness As Boolean = False
   Friend ReadOnly Property IsModifiedThickness As Boolean
      Get
         Return m_IsModifiedThickness
      End Get
   End Property

   Private m_OrigThickness As Double
   Private m_Thickness As Double
   Public Property Thickness As String
      Get
         If m_Thickness < EPS_SMALL Then Return ""
         Return LenToString(m_Thickness, 2)
      End Get
      Set(value As String)
         Dim dThickness As Double = 0
         If StringToLen(value, dThickness) And dThickness > -EPS_ZERO Then
            m_Thickness = dThickness
            m_IsModifiedThickness = m_Thickness <> m_OrigThickness
         Else
            NotifyPropertyChanged("Thickness")
         End If
         m_IsEnabledBtn(IsValid)
         If Not String.IsNullOrWhiteSpace(m_ThicknessError) Then
            LibMap.refStatusBarVM.SetOutputMessage(m_ThicknessError, 5, MSG_TYPE.ERROR_)
            Return
         End If
         If Not PhotoMap.refDetailPageVM.UpdatePhoto() Then
            EgtOutLog("Modifica spessore: Errore in fase di scalatura (UpdatePhoto)")
         End If
         EgtDraw()
      End Set
   End Property
   Friend Function GetThickness() As Double
      Return m_Thickness
   End Function

   Private m_IsModifiedWarehousePosition As Boolean = False
   Friend ReadOnly Property IsModifiedWarehousePosition As Boolean
      Get
         Return m_IsModifiedWarehousePosition
      End Get
   End Property
   Private m_OrigWarehousePosition As String
   Private m_WarehousePosition As String
   Public Property WarehousePosition As String
      Get
         Return m_WarehousePosition
      End Get
      Set(value As String)
         m_WarehousePosition = value
         m_IsModifiedWarehousePosition = m_WarehousePosition <> m_OrigWarehousePosition
         m_IsEnabledBtn(IsValid And IsModified)
         NotifyPropertyChanged("WarehousePosition")
      End Set
   End Property

   Private m_AddedDate As Date
   Public Property AddedDate As Date
      Get
         Return m_AddedDate
      End Get
      Set(value As Date)
         m_AddedDate = value
      End Set
   End Property

   Private m_IsLoaded As Boolean
   Public Property IsLoaded As Boolean
      Get
         Return m_IsLoaded
      End Get
      Set(value As Boolean)
         m_IsLoaded = value
         NotifyPropertyChanged("IsLoaded")
      End Set
   End Property

   Private m_IsSelected As Integer = 0
   Public Property IsSelected As Integer
      Get
         Return m_IsSelected
      End Get
      Set(value As Integer)
         m_IsSelected = value
         NotifyPropertyChanged("IsSelected")
         NotifyPropertyChanged("BackGroundColor")
      End Set
   End Property

   Public ReadOnly Property BackGroundColor As SolidColorBrush
      Get
         ' In attesa di gestire l'aggiornamento della pagina (lettura della tabella DataTime nuova)
         If m_IsSelected = 0 Then
            Return DirectCast(New BrushConverter().ConvertFrom("LightGray"), SolidColorBrush)
         Else
            Return DirectCast(New BrushConverter().ConvertFrom("DarkOrange"), SolidColorBrush)
         End If
         Return DirectCast(New BrushConverter().ConvertFrom("LightGray"), SolidColorBrush)
      End Get
   End Property


   Public ReadOnly Property Slab_Tooltip As String
      Get
         Dim CurrState As String = String.Empty
         For Index = 0 To PhotoMap.refProjectVM.StateList.Count - 1
            If PhotoMap.refProjectVM.StateList(Index).Id = m_State Then
               CurrState = PhotoMap.refProjectVM.StateList(Index).Name
            End If
         Next
         Dim Tooltip As String = EgtMsg(MSG_SLAB + 1) & ": " & m_Id & Environment.NewLine &
                                 EgtMsg(MSG_SLAB + 3) & ": " & CurrState & Environment.NewLine &
                                 EgtMsg(MSG_SLAB + 4) & ": " & m_ProjectAssignedTo & Environment.NewLine &
                                 EgtMsg(MSG_RAWPARTPAGEUC + 9) & ": " & m_Material & Environment.NewLine &
                                 EgtMsg(MSG_RAWPARTPAGEUC + 5) & ": " & Thickness & Environment.NewLine &
                                 EgtMsg(MSG_SLAB + 5) & ": " & m_WarehousePosition & Environment.NewLine &
                                 EgtMsg(MSG_SLAB + 6) & ": " & m_AddedDate & Environment.NewLine &
                                 "In reading" & ": " & m_IsSelected.ToString
         Return Tooltip
      End Get
   End Property

#End Region    ' FIELDS & PROPERTIES

#Region "CONSTRUCTOR"

   Sub New(sId As String, sBlock As String, sPath As String, State As StateOpt, sProjectAssignedTo As String, Material As String, dThickness As Double, sWarehousePosition As String)
      m_sNbrID = sId
      m_sNameBlock = sBlock
      ' costriosco l'ID 
      BuildID()
      m_ImagePath = sPath
      m_State = State
      m_ProjectAssignedTo = sProjectAssignedTo
      m_Material = Material
      m_Thickness = dThickness
      m_WarehousePosition = sWarehousePosition
      m_AddedDate = Date.Today
      m_IsLoaded = False
      m_IsSelected = 0
   End Sub

   Sub New(SlabReader As SQLiteDataReader)
      m_Id = SlabReader(DB_ID)
      Dim TempPath As String = SlabReader(DB_IMAGEPATH)
      If Not File.Exists(TempPath) Then TempPath = MainData.sPhotoDir & "\" & CStr(SlabReader(DB_IMAGEPATH))
      m_ImagePath = TempPath
      m_State = SlabReader(DB_STATE)
      m_ProjectAssignedTo = If(SlabReader(DB_PROJASSIGNEDTO) Is DBNull.Value, Nothing, SlabReader(DB_PROJASSIGNEDTO))
      Dim MaterialName As String = SlabReader(DB_MATERIAL)
      m_Material = If(Not String.IsNullOrWhiteSpace(MaterialName), MaterialName, Nothing)
      m_Thickness = SlabReader(DB_THICKNESS)
      m_WarehousePosition = SlabReader(DB_WAREHOUSEPOS)
      ' m_AddedDate = Date.Today
      ' il database corrente non funziona perchè attende un dato di tipo Intero
      Try
         Dim sData As Integer = SlabReader(DB_ADDEDDATE)
         ' So che l'ottava colonna è quella destinata alla data
         Dim sMsg As String = SlabReader.GetString(IndexAddedDate)
         m_AddedDate = CDate(sMsg)
      Catch ex As Exception
         m_AddedDate = Date.Today
      End Try

      m_IsSelected = If(SlabReader(DB_ISSELECTED) Is DBNull.Value, 0, SlabReader(DB_ISSELECTED))
   End Sub

#End Region    ' CONSTRUCTOR

#Region "METHODS"

   Private m_IdError As String
   Public ReadOnly Property IdErrorMsg As String
      Get
         Return m_IdError
      End Get
   End Property

   Private m_ImagePathError As String
   Public ReadOnly Property ImagePathErrorMsg As String
      Get
         Return m_ImagePathError
      End Get
   End Property

   Private m_ThicknessError As String
   Public ReadOnly Property ThicknessErrorMsg As String
      Get
         Return m_ThicknessError
      End Get
   End Property

   Private Function GetValidationError(propertyName As String) As Boolean
      Dim bOk As Boolean = True
      Select Case propertyName
         Case "Id"
            bOk = Me.ValidateId()
         Case "ImagePath"
            bOk = Me.ValidateImagePath()
         Case "Thickness"
            bOk = Me.ValidateThickness()
      End Select
      Return bOk
   End Function

   ''' <summary>
   ''' Returns true if this object has no validation errors.
   ''' </summary>
   Public ReadOnly Property IsValid() As Boolean
      Get
         For Each [property] As String In ValidatedProperties
            If Not GetValidationError([property]) Then
               Return False
            End If
         Next [property]
         Return True
      End Get
   End Property

   Private Shared ReadOnly ValidatedProperties() As String = {"Id", "ImagePath", "Thickness"}

   Private Function ValidateId() As Boolean
      m_IdError = String.Empty
      ' AndAlso Not m_Id.IndexOfAny("[~`!@#$%^&*()-+=|{}':;.,<>/?]".ToCharArray) <> -1
      If Not String.IsNullOrEmpty(m_Id) Then
         For Each Slab In PhotoMap.refProjectVM.SlabList
            If Slab IsNot Me AndAlso Slab.Id = m_Id Then
               ' Nome già utilizzato
               m_IdError = EgtMsg(MSG_SLAB + 1)
               'LibMap.refStatusBarVM.SetOutputMessage(sMsg, 3, MSG_TYPE.ERROR_)
               Return False
            End If
         Next
         Return True
      Else
         ' Il nome è obbligatorio
         m_IdError = EgtMsg(MSG_SLAB + 2)
         'LibMap.refStatusBarVM.SetOutputMessage(sMsg, 3, MSG_TYPE.ERROR_)
         Return False
      End If
   End Function

   Friend Shared Function ValidateIntgerId(nLastId As Integer) As Integer
      ' AndAlso Not m_Id.IndexOfAny("[~`!@#$%^&*()-+=|{}':;.,<>/?]".ToCharArray) <> -1
      Dim bIsValidId As Boolean = False
      While Not bIsValidId
         If Not String.IsNullOrEmpty(nLastId) Then
            bIsValidId = True
            For Each Slab In PhotoMap.refProjectVM.SlabList
               ' verifico che sia un numero 
               Dim nVal As Integer = 0
               If StringToInt(Slab.Id, nVal) Then
                  If nLastId = nVal Then
                     ' incremento l'indice e riparto a controllare da capo
                     nLastId += 1
                     bIsValidId = False
                     ' Nome già utilizzato
                     Exit For
                  End If
               End If
            Next
         End If
      End While
      Return nLastId
   End Function

   ' genero l'ID secondo le nuove regole: ricavo genro il primo indice libero
   Friend Shared Function GenerateIdNbr(sNewNameBlcok As String) As String
      Dim nLastIndex As Integer = 1
      ' se non esiste nessuno nome blocco allora il valore Id deve essere univoco
      If String.IsNullOrEmpty(sNewNameBlcok) Or String.IsNullOrWhiteSpace(sNewNameBlcok) Then
         nLastIndex = ValidateIntgerId(nLastIndex)
         Return GetNbrToString(nLastIndex)
      End If
      ' recupero l'ultimo indice salvato (prelevato da file Config.ini di Omga-PHOTO)
      If Not String.IsNullOrEmpty(nLastIndex) Then
         For Each Slab In PhotoMap.refProjectVM.SlabList
            Dim sNbr As String = String.Empty
            Dim sBlock As String = String.Empty
            Dim sCurrID As String = Slab.Id.Trim
            ' Assegnato l'ID corrente recupero il numero e il nome del blocco
            SplitID(sCurrID, sNbr, sBlock)
            ' se l'ID corrente è del tipo NomeBlocco-NN
            If Not String.IsNullOrEmpty(sBlock) AndAlso IsNumeric(sNbr) Then
               ' se è lo stesso nome del blocco 
               If sNewNameBlcok.Trim = sBlock Then
                  If nLastIndex <= CInt(sNbr) Then
                     nLastIndex = CInt(sNbr) + 1
                  End If
               End If
            End If
         Next
      End If
      Return GetNbrToString(nLastIndex)
   End Function

   Private Function ValidateImagePath() As Boolean
      m_ImagePathError = String.Empty
      If Not String.IsNullOrEmpty(m_ImagePath) Then Return True
      ' Il nome immagine è obbligatorio
      m_ImagePathError = EgtMsg(MSG_SLAB + 3)
      Return False
   End Function

   Private Function ValidateThickness() As Boolean
      m_ThicknessError = String.Empty
      If Not IsNothing(m_Thickness) Then
         Dim dThickness As Double = 0
         StringToLen(m_Thickness, dThickness)
         If dThickness > EPS_SMALL Then Return True
         ' Non sono ammessi spessori negativi
         m_ThicknessError = EgtMsg(MSG_RAWPARTPAGEUC + 18)
         'LibMap.refStatusBarVM.SetOutputMessage(sMsg, 3, MSG_TYPE.ERROR_)
         Return False
      End If
      Return False
   End Function

   Public ReadOnly Property IsModified() As Boolean
      Get
         Return m_IsModifiedId OrElse m_IsModifiedImagePath OrElse m_IsModifiedState OrElse
                m_IsModifiedProjectAssignedTo OrElse m_IsModifiedMaterial OrElse m_IsModifiedThickness OrElse
                m_IsModifiedWarehousePosition
      End Get
   End Property

   Friend Sub ResetIsModified()
      m_IsModifiedId = False
      m_IsModifiedImagePath = False
      m_IsModifiedState = False
      m_IsModifiedProjectAssignedTo = False
      m_IsModifiedMaterial = False
      m_IsModifiedThickness = False
      m_IsModifiedWarehousePosition = False
   End Sub

   Friend Sub SetOrigValues()
      m_OrigId = m_Id
      SplitID(m_Id, m_sOrigNbrID, m_sOrigNameBlock)
      m_OrigImagePath = m_ImagePath
      m_OrigState = m_State
      m_OrigProjectAssignedTo = m_ProjectAssignedTo
      m_OrigMaterial = m_Material
      m_OrigThickness = m_Thickness
      m_OrigWarehousePosition = m_WarehousePosition
   End Sub

   Public Sub UpDateComboBox()
      NotifyPropertyChanged("Selected")
   End Sub

#End Region    ' METHODS

End Class

Public Class Material

   Private m_nId As Integer
   Private m_sName As String

   Public ReadOnly Property nId As Integer
      Get
         Return m_nId
      End Get
   End Property

   Public Property sName As String
      Get
         Return m_sName
      End Get
      Set(value As String)
         m_sName = value
      End Set
   End Property

   Sub New(sName As String, MaterialList As ObservableCollection(Of Material))
      Dim nMaxId As Integer = 0
      For Each Material In MaterialList
         If Material.nId > nMaxId Then
            nMaxId = Material.nId
         End If
      Next
      m_nId = nMaxId + 1
      m_sName = sName
   End Sub

   Sub New(nId As Integer, sName As String)
      m_nId = nId
      m_sName = sName
   End Sub

End Class

''' <summary>
''' Class that represent a Converter that convert mm in inch if necessary for the param depth.
''' </summary>
Public Class StateIndexConverter
   Implements IMultiValueConverter

   Dim StateList As List(Of IdNameStruct)

   Public Function Convert(value() As Object, targetType As Type, parameter As Object, culture As System.Globalization.CultureInfo) As Object Implements IMultiValueConverter.Convert
      If Not TypeOf value(1) Is List(Of IdNameStruct) Then Return value(0)
      StateList = DirectCast(value(1), List(Of IdNameStruct))
      Dim SelState As Slab.StateOpt
      If Not TypeOf value(0) Is Slab.StateOpt Then Return value(0)
      SelState = DirectCast(value(0), Slab.StateOpt)
      For Index = 0 To StateList.Count - 1
         If StateList(Index).Id = SelState Then
            Return Index
         End If
      Next
      Return value
   End Function

   Public Function ConvertBack(value As Object, targetType() As Type, parameter As Object, culture As System.Globalization.CultureInfo) As Object() Implements IMultiValueConverter.ConvertBack
      Return {StateList(value).Id}
   End Function

End Class

Public Class DataTimeRecord

   Private m_CurrentKey As String
   Public Property CurrentKey As String
      Get
         Return m_CurrentKey
      End Get
      Set(value As String)
         m_CurrentKey = value
      End Set
   End Property

   Private m_sLastDate As String
   Public Property sLastDate As String
      Get
         Return m_sLastDate
      End Get
      Set(value As String)
         m_sLastDate = value
      End Set
   End Property

   Sub New(SlabReader As SQLiteDataReader)
      m_CurrentKey = SlabReader("Id")
      Try
         ' So che l'ottava colonna è quella destinata alla data
         Dim sMsg As String = SlabReader.GetString(1)
         m_sLastDate = sMsg
      Catch ex As Exception
      End Try

   End Sub

End Class