diff --git a/MTableDb/MTableDbV.xaml b/MTableDb/MTableDbV.xaml
index 0fae34a..a9fec47 100644
--- a/MTableDb/MTableDbV.xaml
+++ b/MTableDb/MTableDbV.xaml
@@ -171,6 +171,7 @@
                            <SolidColorBrush x:Key="{x:Static SystemColors.ControlTextBrushKey}" Color="{x:Static SystemColors.HighlightTextColor}"/>
                         </Style.Resources>
                         <Setter Property="IsSelected" Value="{Binding IsSelected,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"/>
+                        <EventSetter Event="PreviewMouseDown" Handler="LeftTableMouseDown"/>
                         <Style.Triggers>
                            <DataTrigger Binding="{Binding IsValidForSearch}" Value="True">
                               <Setter Property="Background" Value="{StaticResource EgaltechGreen}"></Setter>
@@ -376,7 +377,7 @@
                   </DataGrid.InputBindings>
                   <DataGrid.CellStyle>
                      <Style TargetType="DataGridCell">
-                        <EventSetter Event="PreviewMouseDown" Handler="CellLeftClick"/>
+                        <EventSetter Event="PreviewMouseLeftButtonDown" Handler="CellLeftClick"/>
                         <EventSetter Event="PreviewMouseRightButtonDown" Handler="CellRightClick"/>
                         <EventSetter Event="PreviewMouseRightButtonUp" Handler="CellRightUp"/>
                         <EventSetter Event="PreviewMouseUp" Handler="CellMouseUp"/>
@@ -390,12 +391,16 @@
                         </Style.Resources>
                         <Setter Property="IsSelected" Value="{Binding IsSelected,Mode=TwoWay,UpdateSourceTrigger=PropertyChanged}"/>
                         <EventSetter Event="MouseRightButtonDown" Handler="RowRightClick"/>
-                        <EventSetter Event="MouseLeftButtonDown" Handler="RowLeftClick"/>
+                        <!--<EventSetter Event="MouseLeftButtonDown" Handler="RowLeftClick"/>-->
+                        <EventSetter Event="PreviewMouseDown" Handler="RowMouseDown"/>
                         <EventSetter Event="PreviewMouseUp" Handler="RowMouseUp"/>
                         <Style.Triggers>
                            <DataTrigger Binding="{Binding IsGroupEven}" Value="True">
                               <Setter Property="Background" Value="{StaticResource EgaltechUltralightGray}"></Setter>
                            </DataTrigger>
+                           <DataTrigger Binding="{Binding IsValidForSearch}" Value="True">
+                              <Setter Property="Background" Value="{StaticResource EgaltechGreen}"></Setter>
+                           </DataTrigger>
                         </Style.Triggers>
                      </Style>
                   </DataGrid.RowStyle>
@@ -428,13 +433,13 @@
                         </DataGridTemplateColumn.Header>
                         <DataGridTemplateColumn.CellEditingTemplate>
                            <DataTemplate>
-                              <ComboBox SelectedItem="{Binding PropertyPar, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
+                              <ComboBox SelectedItem="{Binding grh_PropertyPar, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"
                                         ItemsSource="{Binding PropertyList, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}"/>
                            </DataTemplate>
                         </DataGridTemplateColumn.CellEditingTemplate>
                         <DataGridTemplateColumn.CellTemplate>
                            <DataTemplate>
-                              <TextBlock ToolTip="{Binding Path=PropertyPar, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}">
+                              <TextBlock ToolTip="{Binding Path=grh_PropertyPar, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}">
                                  <TextBlock.Text>
                                     <MultiBinding Converter="{StaticResource PropertyConverter}">
                                        <Binding Path="PropertyPar" />
@@ -459,15 +464,7 @@
                            </DataTemplate>
                         </DataGridTemplateColumn.CellTemplate>
                      </DataGridTemplateColumn>
-                     <!--Colonna GeometryName-->
-                     <!--
-                     <DataGridTextColumn Width="1*"
-                                         Binding="{Binding Geometry}"
-                                         IsReadOnly="True">
-                        <DataGridTextColumn.Header>
-                           <TextBlock Text="{Binding Path=DataContext.GeometryHdr, RelativeSource={RelativeSource AncestorType={x:Type EgtWPFLib5:EgtCustomWindow}}}"/>
-                        </DataGridTextColumn.Header>
-                     </DataGridTextColumn>-->
+
 
                      <!--Colonna MachiningName-->
                      <DataGridTemplateColumn Width="1*"
@@ -482,18 +479,9 @@
                            </DataTemplate>
                         </DataGridTemplateColumn.CellTemplate>
                      </DataGridTemplateColumn>
-                     <!--Colonna MachiningName-->
-                     <!--
-                     <DataGridTextColumn Width="1*"
-                                         Binding="{Binding Machining}"
-                                         IsReadOnly="True">
-                        <DataGridTextColumn.Header>
-                           <TextBlock Text="{Binding Path=DataContext.MachiningHdr, RelativeSource={RelativeSource AncestorType={x:Type EgtWPFLib5:EgtCustomWindow}}}"/>
-                        </DataGridTextColumn.Header>
-                     </DataGridTextColumn>-->
 
                      <!--Colonna Join-->
-                     <DataGridCheckBoxColumn Width="Auto" Binding="{Binding Join}">
+                     <DataGridCheckBoxColumn Width="Auto" Binding="{Binding grh_Join}">
                         <DataGridCheckBoxColumn.Header>
                            <TextBlock Text="{Binding Path=DataContext.JoinHdr,RelativeSource={RelativeSource AncestorType={x:Type EgtWPFLib5:EgtCustomWindow}}}"/>
                         </DataGridCheckBoxColumn.Header>
@@ -545,18 +533,20 @@
                   IsEnabled="{Binding IsEnabledResetSearch}"/>
             </Grid>
             <Button Content="{Binding AddMachiningBtn}" Command="{Binding AddRowCommand}"
-               CommandParameter="{Binding Path=SelectedItem, ElementName=TablesListBox}"
-               Grid.Column="1"/>
+                    CommandParameter="{Binding Path=SelectedItem, ElementName=TablesListBox}"
+                    IsEnabled="{Binding AddRemoveRow_IsEnabled}"
+                    Grid.Column="1"/>
             <Button Content="{Binding RemoveMachiningBtn}" Command="{Binding RemoveRowCommand}"
-               CommandParameter="{Binding Path=SelectedItem, ElementName=TablesListBox}"
-               Grid.Column="2"/>
+                    CommandParameter="{Binding Path=SelectedItem, ElementName=TablesListBox}"
+                    IsEnabled="{Binding AddRemoveRow_IsEnabled}"
+                    Grid.Column="2"/>
             <Button Content="/\" Command="{Binding MoveRowUpCommand}"
                     CommandParameter="{Binding Path=SelectedItem, ElementName=TablesListBox}"
-                    IsEnabled="{Binding MoveRowUp_IsEnabled}"
+                    IsEnabled="{Binding MoveRow_IsEnabled}"
                     Grid.Column="3"/>
             <Button Content="\/" Command="{Binding MoveRowDownCommand}"
                     CommandParameter="{Binding Path=SelectedItem, ElementName=TablesListBox}"
-                    IsEnabled="{Binding MoveRowDown_IsEnabled}"
+                    IsEnabled="{Binding MoveRow_IsEnabled}"
                     Grid.Column="4"/>
             <Button Content="Group" Command="{Binding GroupCommand}"
                     CommandParameter="{Binding Path=SelectedItem, ElementName=TablesListBox}"
diff --git a/MTableDb/MTableDbV.xaml.vb b/MTableDb/MTableDbV.xaml.vb
index c6a0fa1..656f4c2 100644
--- a/MTableDb/MTableDbV.xaml.vb
+++ b/MTableDb/MTableDbV.xaml.vb
@@ -17,11 +17,19 @@ Public Class MTableDbV
       m_MTableDbVM = MTableDbVM
    End Sub
 
-   Private Sub RowLeftClick(sender As Object, e As MouseButtonEventArgs)
-      e.Handled = True
+   Private Sub LeftTableMouseDown(sender As Object, e As MouseButtonEventArgs)
+      m_MTableDbVM.FocusedTable = MTableDbVM.Tables.LEFTTABLE
+      m_MTableDbVM.ResetRightTableSelection()
+   End Sub
+
+   Private Sub RowMouseDown(sender As Object, e As MouseButtonEventArgs)
+      m_MTableDbVM.FocusedTable = MTableDbVM.Tables.RIGHTTABLE
+      m_MTableDbVM.ResetLeftTableSelection()
    End Sub
 
    Private Sub RowRightClick(sender As Object, e As MouseButtonEventArgs)
+      m_MTableDbVM.FocusedTable = MTableDbVM.Tables.RIGHTTABLE
+      m_MTableDbVM.ResetLeftTableSelection()
       e.Handled = True
    End Sub
 
@@ -62,7 +70,7 @@ Public Class MTableDbV
          End If
       End If
       If Not bSelCell And Not CurrCell.IsEditing Or CurrCell.Column Is MachiningDataGrid.Columns(4) Then
-         m_EditCell.IsEditing = False
+         If Not IsNothing(m_EditCell) Then m_EditCell.IsEditing = False
          Keyboard.ClearFocus()
          MachiningDataGrid.Focus()
          e.Handled = True
@@ -78,8 +86,8 @@ Public Class MTableDbV
          Dim SelectedRow As MTableMachiningGridBoxItem = DirectCast(CurrCell.DataContext, MTableMachiningGridBoxItem)
          m_MTableDbVM.RightSelect(SelectedRow)
       End If
-      m_EditCell.IsEditing = False
-      CurrCell.IsSelected = False
+      If Not IsNothing(m_EditCell) Then m_EditCell.IsEditing = False
+      CurrCell.IsEditing = False
       Keyboard.ClearFocus()
       MachiningDataGrid.Focus()
       e.Handled = True
diff --git a/MTableDb/MTableDbVM.vb b/MTableDb/MTableDbVM.vb
index 922aa3a..1f6f02e 100644
--- a/MTableDb/MTableDbVM.vb
+++ b/MTableDb/MTableDbVM.vb
@@ -7,6 +7,21 @@ Imports System.Text.RegularExpressions
 Public Class MTableDbVM
    Inherits VMBase
 
+   Friend Enum Tables As Integer
+      LEFTTABLE = 1
+      RIGHTTABLE = 2
+   End Enum
+
+   Private m_FocusedTable As Tables = Tables.LEFTTABLE
+   Friend Property FocusedTable As Tables
+      Get
+         Return m_FocusedTable
+      End Get
+      Set(value As Tables)
+         m_FocusedTable = value
+      End Set
+   End Property
+
    Private Shared m_refMTableDbVM As MTableDbVM
    Public Shared ReadOnly Property refMTableDbVM As MTableDbVM
       Get
@@ -38,19 +53,22 @@ Public Class MTableDbVM
       Set(value As String)
          If value <> m_TextToSearch Then
             If Not String.IsNullOrWhiteSpace(value) Then
+               ' deseleziono tutto nella tabella delle lavorazioni ordinate
+               ResetRightTableSelection()
+               ' recupero tabella selezionata
                Dim SelectedMTable As MTableListBoxItem = Nothing
                For TableIndex = 0 To m_TablesList.Count - 1
                   If m_TablesList(TableIndex).IsSelected Then
                      SelectedMTable = m_TablesList(TableIndex)
                   End If
                Next
+               ' se esiste, cerco il testo ed abilito il bottone reset
                If Not IsNothing(SelectedMTable) Then
                   SearchText(value, SelectedMTable)
                   IsEnabledResetSearch = True
                End If
-               SearchText(value, SelectedMTable)
-               IsEnabledResetSearch = True
             Else
+               ' altrimenti resetto la ricerca e disabilito il bottone reset
                ResetSearchedRow()
                IsEnabledResetSearch = False
             End If
@@ -84,28 +102,28 @@ Public Class MTableDbVM
       End Set
    End Property
 
-   Private m_MoveRowUp_IsEnabled As Boolean
-   Public Property MoveRowUp_IsEnabled As Boolean
+   Private m_AddRemoveRow_IsEnabled As Boolean
+   Public Property AddRemoveRow_IsEnabled As Boolean
       Get
-         Return m_MoveRowUp_IsEnabled
+         Return m_AddRemoveRow_IsEnabled
       End Get
       Set(value As Boolean)
-         If value <> m_MoveRowUp_IsEnabled Then
-            m_MoveRowUp_IsEnabled = value
-            NotifyPropertyChanged("MoveRowUp_IsEnabled")
+         If value <> m_AddRemoveRow_IsEnabled Then
+            m_AddRemoveRow_IsEnabled = value
+            NotifyPropertyChanged("AddRemoveRow_IsEnabled")
          End If
       End Set
    End Property
 
-   Private m_MoveRowDown_IsEnabled As Boolean
-   Public Property MoveRowDown_IsEnabled As Boolean
+   Private m_MoveRow_IsEnabled As Boolean
+   Public Property MoveRow_IsEnabled As Boolean
       Get
-         Return m_MoveRowDown_IsEnabled
+         Return m_MoveRow_IsEnabled
       End Get
       Set(value As Boolean)
-         If value <> m_MoveRowDown_IsEnabled Then
-            m_MoveRowDown_IsEnabled = value
-            NotifyPropertyChanged("MoveRowDown_IsEnabled")
+         If value <> m_MoveRow_IsEnabled Then
+            m_MoveRow_IsEnabled = value
+            NotifyPropertyChanged("MoveRow_IsEnabled")
          End If
       End Set
    End Property
@@ -430,6 +448,7 @@ Public Class MTableDbVM
 
    Private Sub SearchText(sText As String, SelectedMTable As MTableListBoxItem)
       Dim bFirst As Boolean = True
+      ' cerco nella tabella associazioni
       For AssociationIndex = 0 To SelectedMTable.AssociationList.Count - 1
          Dim CurrAssociation As MTableAssociationGridBoxItem = SelectedMTable.AssociationList(AssociationIndex)
          If CurrAssociation.Name.ToLower.Contains(sText) Then
@@ -442,6 +461,17 @@ Public Class MTableDbVM
             CurrAssociation.IsValidForSearch = False
          End If
       Next
+      ' cerco nella tabella lavorazioni ordinate
+      For MachineIndex = 0 To SelectedMTable.ActiveMachinesList.Count - 1
+         For MachiningIndex = 0 To SelectedMTable.ActiveMachinesList(MachineIndex).MachiningList.Count - 1
+            Dim CurrMachining As MTableMachiningGridBoxItem = SelectedMTable.ActiveMachinesList(MachineIndex).MachiningList(MachiningIndex)
+            If CurrMachining.Geometry.ToLower.Contains(sText) Then
+               CurrMachining.IsValidForSearch = True
+            Else
+               CurrMachining.IsValidForSearch = False
+            End If
+         Next
+      Next
    End Sub
 
    Private Sub SearchInNewlySelectedMTable(SelectedMTable As MTableListBoxItem)
@@ -562,15 +592,15 @@ Public Class MTableDbVM
       ' gestisco bottoni
       ' se ho selezionato un gruppo 0 e c'è un gruppo già selezionato
       If SelectedRow.GroupId = 0 And nSelFirstGroupId = nSelLastGroupId And bItemFound Then
-         ManageMachiningButtons(True, False, False)
+         ManageMachiningButtons(False, True, False, False)
       ElseIf SelectedRow.GroupId <> 0 And nSelFirstGroupId = nSelLastGroupId And bZeroItemFound Then
-         ManageMachiningButtons(True, False, False)
+         ManageMachiningButtons(False, True, False, False)
       ElseIf SelectedRow.GroupId <> 0 And bItemFound Then
-         ManageMachiningButtons(False, True, False)
+         ManageMachiningButtons(False, False, True, False)
       ElseIf SelectedRow.GroupId <> 0 And Not bItemFound Then
-         ManageMachiningButtons(False, False, True)
+         ManageMachiningButtons(False, False, False, True)
       Else
-         ManageMachiningButtons(False, False, False)
+         ManageMachiningButtons(False, False, False, False)
       End If
    End Sub
 
@@ -616,7 +646,7 @@ Public Class MTableDbVM
                         If m_TablesList(TableIndex).SelMachine.MachiningList.Count - 1 = MachiningIndex OrElse m_TablesList(TableIndex).SelMachine.MachiningList(MachiningIndex + 1).GroupId <> CurrMachining.GroupId Then
                            bLastIsGroup = True
                         End If
-                        End If
+                     End If
                   End If
                End If
             Next
@@ -626,9 +656,9 @@ Public Class MTableDbVM
       ' gestisco bottoni
       ' se ho selezionato un gruppo 0 e c'è un gruppo già selezionato
       If bItemFound And nSelFirstGroupId = nSelLastGroupId Then
-         ManageMachiningButtons(False, False, True)
+         ManageMachiningButtons(False, False, False, True)
       Else
-         ManageMachiningButtons(False, False, False)
+         ManageMachiningButtons(False, False, False, False)
       End If
 
    End Sub
@@ -669,19 +699,19 @@ Public Class MTableDbVM
    Friend Sub RightSelect(SelectedRow As MTableMachiningGridBoxItem)
       Dim bIsRowSelected As Boolean = SelectedRow.IsSelected
       ' deseleziono tutto
-      ResetSelection()
+      ResetRightTableSelection()
       If Not bIsRowSelected Then
          ' seleziono la lavorazione clickata
          SelectedRow.IsSelected = True
          ' attivo solo tasti di movimento
-         ManageMachiningButtons(False, False, True)
+         ManageMachiningButtons(False, False, False, True)
       Else
          ' disattivo tutti i tasti
-         ManageMachiningButtons(False, False, False)
+         ManageMachiningButtons(False, False, False, False)
       End If
    End Sub
 
-   Private Sub ResetSelection()
+   Friend Sub ResetRightTableSelection()
       For TableIndex = 0 To m_TablesList.Count - 1
          If m_TablesList(TableIndex).IsSelected Then
             For MachiningIndex = 0 To m_TablesList(TableIndex).SelMachine.MachiningList.Count - 1
@@ -693,13 +723,25 @@ Public Class MTableDbVM
       Next
    End Sub
 
+   Friend Sub ResetLeftTableSelection()
+      For TableIndex = 0 To m_TablesList.Count - 1
+         If m_TablesList(TableIndex).IsSelected Then
+            For AssociationIndex = 0 To m_TablesList(TableIndex).AssociationList.Count - 1
+               Dim CurrAssociation As MTableAssociationGridBoxItem = m_TablesList(TableIndex).AssociationList(AssociationIndex)
+               CurrAssociation.IsSelected = False
+            Next
+            Exit For
+         End If
+      Next
+   End Sub
+
 #End Region    ' SelectGroupCommand
 
-   Private Sub ManageMachiningButtons(bPosition As Boolean, bGroup As Boolean, bMove As Boolean)
+   Friend Sub ManageMachiningButtons(bAddRemoveRow As Boolean, bPosition As Boolean, bGroup As Boolean, bMove As Boolean)
+      AddRemoveRow_IsEnabled = bAddRemoveRow
       Position_IsEnabled = bPosition
       Group_IsEnabled = bGroup
-      MoveRowDown_IsEnabled = bMove
-      MoveRowUp_IsEnabled = bMove
+      MoveRow_IsEnabled = bMove
    End Sub
 
 #End Region
@@ -948,6 +990,7 @@ Public Class MTableDbVM
    End Sub
 
    Public Sub ResetSearchedRow()
+      ' analizzo tabella associazioni
       For TableIndex = 0 To m_TablesList.Count - 1
          If m_TablesList(TableIndex).IsSelected Then
             For AssociationIndex = 0 To m_TablesList(TableIndex).AssociationList.Count - 1
@@ -957,6 +1000,18 @@ Public Class MTableDbVM
             Exit For
          End If
       Next
+      ' analizzo tabella lavorazioni ordinate
+      For TableIndex = 0 To m_TablesList.Count - 1
+         If m_TablesList(TableIndex).IsSelected Then
+            For MachineIndex = 0 To m_TablesList(TableIndex).ActiveMachinesList.Count - 1
+               For MachiningIndex = 0 To m_TablesList(TableIndex).ActiveMachinesList(MachineIndex).MachiningList.Count - 1
+                  Dim CurrMachining As MTableMachiningGridBoxItem = m_TablesList(TableIndex).ActiveMachinesList(MachineIndex).MachiningList(MachiningIndex)
+                  CurrMachining.IsValidForSearch = False
+               Next
+            Next
+            Exit For
+         End If
+      Next
    End Sub
 
 
@@ -1179,6 +1234,7 @@ Public Class MTableDbVM
    Public Sub RemoveRow(param As Object)
       Dim SelectedMTable As MTableListBoxItem = DirectCast(param, MTableListBoxItem)
       If Not IsNothing(SelectedMTable) AndAlso SelectedMTable.AssociationList.Count > 1 Then
+         If IsNothing(SelectedMTable.SelectedAssociation) Then Return
          ' Chiedo conferma cancellazione riga di associazione
          If MessageBox.Show(EgtMsg(MSG_DOORSERRORS + 10), EgtMsg(MSG_DOORSERRORS + 11), MessageBoxButton.YesNo, MessageBoxImage.Question) <> MessageBoxResult.Yes Then
             Return
@@ -1233,11 +1289,28 @@ Public Class MTableDbVM
    End Property
 
    ''' <summary>
-   ''' Execute the Exec.  This method is invoked by the ExecCommand.
+   ''' Right table Movement
    ''' </summary>
    Public Sub MoveRowUp(param As Object)
       Dim SelectedMTable As MTableListBoxItem = DirectCast(param, MTableListBoxItem)
       If IsNothing(SelectedMTable) Then Return
+      If m_FocusedTable = Tables.LEFTTABLE Then
+         LeftTableMoveRowUp(SelectedMTable)
+      Else
+         RightTableMoveRowUp(SelectedMTable)
+      End If
+   End Sub
+
+   ' Left table Movement
+   Public Sub LeftTableMoveRowUp(SelectedMTable As MTableListBoxItem)
+      Dim SelectedIndex As Integer = SelectedMTable.AssociationList.IndexOf(SelectedMTable.SelectedAssociation)
+      If SelectedIndex >= 1 Then
+         SelectedMTable.AssociationList.Move(SelectedIndex, SelectedIndex - 1)
+      End If
+   End Sub
+
+   Public Sub RightTableMoveRowUp(SelectedMTable As MTableListBoxItem)
+      SelectedMTable.m_IsMachiningOrdModified = True
       MoveRow(SelectedMTable, True)
    End Sub
 
@@ -1474,6 +1547,24 @@ Public Class MTableDbVM
    Public Sub MoveRowDown(param As Object)
       Dim SelectedMTable As MTableListBoxItem = DirectCast(param, MTableListBoxItem)
       If IsNothing(SelectedMTable) Then Return
+      If m_FocusedTable = Tables.LEFTTABLE Then
+         LeftTableMoveRowDown(SelectedMTable)
+      Else
+         RigthTableMoveRowDown(SelectedMTable)
+      End If
+   End Sub
+
+   ' Spostamento sulla tabella delle associazioni
+   Public Sub LeftTableMoveRowDown(SelectedMTable As MTableListBoxItem)
+      Dim SelectedIndex As Integer = SelectedMTable.AssociationList.IndexOf(SelectedMTable.SelectedAssociation)
+      If SelectedIndex < SelectedMTable.AssociationList.Count - 1 Then
+         SelectedMTable.AssociationList.Move(SelectedIndex, SelectedIndex + 1)
+      End If
+   End Sub
+
+   ' Spostamento sulla tabella ordine lavorazioni
+   Public Sub RigthTableMoveRowDown(SelectedMTable As MTableListBoxItem)
+      SelectedMTable.m_IsMachiningOrdModified = True
       MoveRow(SelectedMTable, False)
    End Sub
 
@@ -1499,6 +1590,7 @@ Public Class MTableDbVM
    Public Sub Group(param As Object)
       Dim SelectedMTable As MTableListBoxItem = DirectCast(param, MTableListBoxItem)
       If IsNothing(SelectedMTable) Then Return
+      SelectedMTable.m_IsMachiningOrdModified = True
       Dim bGroupStarted As Boolean = False
       Dim bGroupEnded As Boolean = False
       Dim nGroupIndex As Integer = 0
@@ -1578,6 +1670,7 @@ Public Class MTableDbVM
    Public Sub Position(param As Object)
       Dim SelectedMTable As MTableListBoxItem = DirectCast(param, MTableListBoxItem)
       If IsNothing(SelectedMTable) Then Return
+      SelectedMTable.m_IsMachiningOrdModified = True
       Dim MachToMove As MTableMachiningGridBoxItem = Nothing
       Dim MachRef As MTableMachiningGridBoxItem = Nothing
       Dim OldIndex As Integer = -1
@@ -1619,7 +1712,7 @@ Public Class MTableDbVM
          End If
       Next
       ' Rivaluto bottoni che dipendono da selezione
-      ManageMachiningButtons(False, False, True)
+      ManageMachiningButtons(False, False, False, True)
    End Sub
 
 #End Region    ' PositionCommand
diff --git a/MTableDb/MTableListBox.vb b/MTableDb/MTableListBox.vb
index b040db2..b696760 100644
--- a/MTableDb/MTableListBox.vb
+++ b/MTableDb/MTableListBox.vb
@@ -13,6 +13,9 @@ Public Class MTableListBoxItem
    Friend Shared m_delCloseMTableWnd As Action
    Friend Shared m_delSearchInMTable As Action(Of MTableListBoxItem)
 
+   ' Parametro che indica se sono state apportate modifiche alla tabella lavorazioni ordinata tramite i comandi sposta, posiziona o ordina
+   Friend m_IsMachiningOrdModified As Boolean = False
+
    Private m_Visibility As Visibility
    Public Property Visibility As Visibility
       Get
@@ -38,6 +41,11 @@ Public Class MTableListBoxItem
                   m_delCloseMTableWnd()
                   Return
                End If
+               ' resetto liste lavorazioni
+               MTableAssociationGridBoxItem.ResetMachiningList()
+               ' resetto stato bottoni di modifica della tabella delle lavorazioni ordinate (posiziona, raggruppa, sposta su e giù)
+               m_IsMachiningOrdModified = False
+               ' leggo la tabella
                If Not ReadMTableFile() Then Return
                SelectedAssociation = If(m_AssociationList.Count > 0, m_AssociationList(0), Nothing)
                SelMachine = m_ActiveMachinesList(0)
@@ -197,16 +205,28 @@ Public Class MTableListBoxItem
 
    Public Function IsModified() As Boolean
       Dim CurrIsModified As Boolean = False
+      ' verifico se ci sono stati cambiamenti nell'ordine delle lavorazioni
+      If m_IsMachiningOrdModified Then Return True
+      ' verifico se ci sono state modifiche nella lista macchine
       For Index As Integer = 0 To m_ActiveMachinesList.Count - 1
          If m_ActiveMachinesList(Index).m_IsModified = True Then
             Return True
          End If
       Next
+      ' verifico se ci sono state modifiche nella lista associazioni
       For Index = 0 To m_AssociationList.Count - 1
          If m_AssociationList(Index).m_IsModified = True Then
             Return True
          End If
       Next
+      ' verifico se ci sono state modifiche nella lista lavorazioni ordinate
+      For MachineIndex As Integer = 0 To m_ActiveMachinesList.Count - 1
+         For MachiningIndex = 0 To m_ActiveMachinesList(MachineIndex).MachiningList.Count - 1
+            If m_ActiveMachinesList(MachineIndex).MachiningList(MachiningIndex).m_IsModified = True Then
+               Return True
+            End If
+         Next
+      Next
       Return False
    End Function
 
@@ -355,6 +375,9 @@ Public Class MTableMachiningGridBoxItem
 
    Private m_refMTableMachine As MTableMachineListBoxItem
 
+   ' Variabile che indica se questo oggetto è stato modificato
+   Friend m_IsModified As Boolean = False
+
    Private m_RWGroupId As Integer
    Public Property RWGroupId As Integer
       Get
@@ -405,6 +428,24 @@ Public Class MTableMachiningGridBoxItem
    End Property
 
    Private m_Property As String
+   Public Property grh_PropertyPar As String
+      Get
+         Return m_Property
+      End Get
+      Set(value As String)
+         m_IsModified = True
+         m_Property = value
+         ' lo modifico anche a tutti gli altri elementi del gruppo
+         Dim PositionIndex As Integer = m_refMTableMachine.MachiningList.IndexOf(Me)
+         For MachiningIndex = PositionIndex To m_refMTableMachine.MachiningList.Count - 1
+            If m_refMTableMachine.MachiningList(MachiningIndex).GroupId = GroupId Then
+               m_refMTableMachine.MachiningList(MachiningIndex).SetProperty(m_Property)
+            Else
+               Exit For
+            End If
+         Next
+      End Set
+   End Property
    Public Property PropertyPar As String
       Get
          Return m_Property
@@ -450,6 +491,18 @@ Public Class MTableMachiningGridBoxItem
    End Property
 
    Private m_Join As Boolean
+   Public Property grh_Join As Boolean
+      Get
+         Return m_Join
+      End Get
+      Set(value As Boolean)
+         If value <> m_Join Then
+            m_IsModified = True
+            m_Join = value
+            NotifyPropertyChanged("Join")
+         End If
+      End Set
+   End Property
    Public Property Join As Boolean
       Get
          Return m_Join
@@ -462,6 +515,18 @@ Public Class MTableMachiningGridBoxItem
       End Set
    End Property
 
+   ' Variabile che indica se il nome dell'associazione corrisponde ai criteri di ricerca
+   Private m_IsValidForSearch As Boolean
+   Public Property IsValidForSearch As Boolean
+      Get
+         Return m_IsValidForSearch
+      End Get
+      Set(value As Boolean)
+         m_IsValidForSearch = value
+         NotifyPropertyChanged("IsValidForSearch")
+      End Set
+   End Property
+
    Sub New(dGroup As Integer, sGeometry As String, sMachining As String, bJoin As Boolean, ByRef refMTableMachine As MTableMachineListBoxItem)
       m_RWGroupId = dGroup
       m_GroupId = dGroup \ 100
@@ -490,6 +555,7 @@ Public Class MTableMachiningGridBoxItem
    Public Shared Sub Remove(Item As MTableMachiningGridBoxItem, MachiningList As ObservableCollection(Of MTableMachiningGridBoxItem))
       ' recupero indice dell'Item all'interno della lista
       Dim ItemIndex As Integer = MachiningList.IndexOf(Item)
+      If ItemIndex < 0 Then Return
       Dim bIncrementFollowingGroup As Boolean = False
       If MachiningList.Count = 1 OrElse MachiningList(ItemIndex).GroupId = 0 Then
          bIncrementFollowingGroup = False
@@ -549,6 +615,7 @@ Public Class MTableAssociationGridBoxItem
       Set(value As Boolean)
          If value <> m_IsSelected Then
             m_IsSelected = value
+            MTableDbVM.refMTableDbVM.ManageMachiningButtons(True, False, False, True)
             NotifyPropertyChanged("IsSelected")
          End If
       End Set
@@ -667,7 +734,7 @@ Public Class MTableAssociationGridBoxItem
                   End If
                Next
                If Not bFound Then
-                  m_SelectedMachType = m_MachTypeList(0)
+                  m_SelectedMachType = Nothing
                   NotifyPropertyChanged("SelectedMachType")
                End If
             End If
@@ -683,14 +750,20 @@ Public Class MTableAssociationGridBoxItem
                Return
             End If
             EgtSetCurrMachine(m_ActiveMachinesList(value - 1).SelectedMachine)
-            m_RefMachItem = ManageOrderedMachining(Mach, nOldMachId, RefMachItem, "Mach")
-            m_RefMachUpItem = ManageOrderedMachining(MachUp, nOldMachId, RefMachUpItem, "MachUp")
-            m_RefMachDwItem = ManageOrderedMachining(MachDw, nOldMachId, RefMachDwItem, "MachDw")
+            If Not IsNothing(m_SelectedMachType) Then
+               m_RefMachItem = ManageOrderedMachining(Mach, nOldMachId, RefMachItem)
+               m_RefMachUpItem = ManageOrderedMachining(MachUp, nOldMachId, RefMachUpItem)
+               m_RefMachDwItem = ManageOrderedMachining(MachDw, nOldMachId, RefMachDwItem)
+               ' aggiorno grafica
+               If String.IsNullOrWhiteSpace(m_Mach) Then NotifyPropertyChanged("Mach")
+               If String.IsNullOrWhiteSpace(m_MachUp) Then NotifyPropertyChanged("MachUp")
+               If String.IsNullOrWhiteSpace(m_MachDw) Then NotifyPropertyChanged("MachDw")
+            End If
          End If
       End Set
    End Property
 
-   Private Function ManageOrderedMachining(ByRef Mach As String, nOldMachId As Integer, ByRef CurrRefMachItem As MTableMachiningGridBoxItem, sProperty As String) As MTableMachiningGridBoxItem
+   Private Function ManageOrderedMachining(ByRef Mach As String, nOldMachId As Integer, ByRef CurrRefMachItem As MTableMachiningGridBoxItem) As MTableMachiningGridBoxItem
       If Not String.IsNullOrEmpty(Mach) Then
          ' se non usata da altre lavorazioni sulla stessa macchina
          Dim bFound As Boolean = False
@@ -711,7 +784,6 @@ Public Class MTableAssociationGridBoxItem
          If Not EgtMdbSetCurrMachining(Mach) Then
             CurrRefMachItem = Nothing
             Mach = String.Empty
-            NotifyPropertyChanged(sProperty)
          Else
             ' se lavorazione mantenuta nella tabella della macchina precedente,
             If bFound Then
@@ -1011,16 +1083,27 @@ Public Class MTableAssociationGridBoxItem
    End Property
 
    ' Liste per le lavorazioni
-   Private m_DrillingList As New List(Of List(Of String))
-   Private m_SawingList As New List(Of List(Of String))
-   Private m_MillingList As New List(Of List(Of String))
-   Private m_PocketingList As New List(Of List(Of String))
-   Private m_MortisingList As New List(Of List(Of String))
-   Private m_SawRoughingList As New List(Of List(Of String))
-   Private m_SawFinishingList As New List(Of List(Of String))
-   Private m_ChiselingList As New List(Of List(Of String))
+   Private Shared m_DrillingList As New List(Of List(Of String))
+   Private Shared m_SawingList As New List(Of List(Of String))
+   Private Shared m_MillingList As New List(Of List(Of String))
+   Private Shared m_PocketingList As New List(Of List(Of String))
+   Private Shared m_MortisingList As New List(Of List(Of String))
+   Private Shared m_SawRoughingList As New List(Of List(Of String))
+   Private Shared m_SawFinishingList As New List(Of List(Of String))
+   Private Shared m_ChiselingList As New List(Of List(Of String))
    Private Shared m_MachinesMachTypeList As New List(Of List(Of MachineModel.MachiningsType))
 
+   Friend Shared Sub ResetMachiningList()
+      m_DrillingList = New List(Of List(Of String))
+      m_SawingList = New List(Of List(Of String))
+      m_MillingList = New List(Of List(Of String))
+      m_PocketingList = New List(Of List(Of String))
+      m_MortisingList = New List(Of List(Of String))
+      m_SawRoughingList = New List(Of List(Of String))
+      m_SawFinishingList = New List(Of List(Of String))
+      m_ChiselingList = New List(Of List(Of String))
+   End Sub
+
    Sub New(bOn As Boolean, sName As String, nMachId As Integer, nShift As Integer, sOper As String,
            RefMachItem As MTableMachiningGridBoxItem, sMach As String, RefMachUpItem As MTableMachiningGridBoxItem, sMachUp As String, RefMachDwItem As MTableMachiningGridBoxItem, sMachDw As String,
            ByRef ActiveMachinesList As ObservableCollection(Of MTableMachineListBoxItem), ByRef AssociationList As ObservableCollection(Of MTableAssociationGridBoxItem))