Pregunta guardar antes de cerrar config si hay cambios

Services/ConfigServ.cs

@@ -161,7 +161,7 @@ namespace OliviaAddInPro.Services
             c.path_manual= @"%dir_work%Manual_Olivia_3_0.pdf";
             c.path_temp = @"%dir_work%temp\";
             c.path_data=@"%dir_work%data\";
-            c.Path_Eje_via = @"%dir_work%Datos\gdbs\TomTom_Q4_2015.gdb\TomTom_Q4_2015___nw";
+            c.Path_Eje_via = "";
             c.Path_Gdb_Import = "";
             c.Path_Guarda_Csv = "";
             /*c.eje_via = "TomTom_Q4_2015___nw";

View/Configuracion/PaneConfigView.xaml

@@ -17,9 +17,9 @@
                 <ColumnDefinition Width="Auto"/>
             </Grid.ColumnDefinitions>
             <Button Content="Guardar" Grid.Column="0" VerticalAlignment="Top" Width="75" Style="{DynamicResource Esri_Button}" Click="OnGuardar"/>
-            <Button Content="Resetear" Grid.Column="1"  VerticalAlignment="Top" Width="75" Style="{DynamicResource Esri_Button}"  Click="OnRefres"/>
+            <Button Content="Releer Config." Grid.Column="1"  VerticalAlignment="Top" Style="{DynamicResource Esri_Button}"  Click="OnRefres"/>
         </Grid>
-        <xctk:PropertyGrid x:Name="Configuracion"  SelectedObject="{Binding Configuracion}" HorizontalAlignment="Stretch">
+        <xctk:PropertyGrid x:Name="Configuracion"  SelectedObject="{Binding Configuracion}" HorizontalAlignment="Stretch" PropertyValueChanged="Configuracion_PropertyValueChanged">
             <!-- Only the following properties will be displayed in the PropertyGrid -->
 
         </xctk:PropertyGrid>

View/Configuracion/PaneConfigView.xaml.cs

@@ -43,6 +43,12 @@ namespace OliviaAddInPro
                 mod.OnRefres();
         }
 
-
+        private void Configuracion_PropertyValueChanged(object sender, Xceed.Wpf.Toolkit.PropertyGrid.PropertyValueChangedEventArgs e)
+        {
+            if (DataContext is PaneConfigViewModel mod)
+            {
+                mod.hay_cambios = true;
+            }
+        }
     }
 }

ViewModel/Configuracion/DockpaneConfigViewModel.cs

@@ -18,6 +18,8 @@ using ArcGIS.Desktop.Framework.Threading.Tasks;
 using ArcGIS.Desktop.Mapping;
 using OliviaAddInPro.Model;
 using OliviaAddInPro.View;
+using OliviaAddInPro.Helper;
+using OliviaAddInPro.Services;
 
 namespace OliviaAddInPro
 {
@@ -26,9 +28,11 @@ namespace OliviaAddInPro
         private bool firstTimeShow = true;
         private static bool hideTemp = false;
         private const string _dockPaneID = "OliviaAddInPro_DockpaneConfig";
+        PaneConfigViewModel paneConfig;
         protected DockpaneConfigViewModel() 
         {
-            _currentPage = new PaneConfigViewModel();
+            paneConfig = new PaneConfigViewModel();
+            _currentPage = (PanelViewModelBase) paneConfig;
 
         }
 
@@ -68,6 +72,15 @@ namespace OliviaAddInPro
             {
                 //avisa de cerrar la ventana
                 //OliviaGlob.SetFlagTipEjec(TiposEjecucion.Ninguno);
+                if (paneConfig!=null && paneConfig.hay_cambios)
+                {
+                    var guardar = HelperGlobal.ponMsg("¿Desea guardar los cambios antes de salir?", System.Windows.MessageBoxImage.Information, "OLIVIA", System.Windows.MessageBoxButton.YesNo);
+                    if (guardar)
+                    {
+                        ConfigServ.Serv.Guardar(paneConfig.Configuracion);                        
+                    }
+                    paneConfig.hay_cambios = false;
+                }
             }
             if (firstTimeShow)
                 firstTimeShow = false;

ViewModel/Configuracion/PaneConfigViewModel.cs

@@ -6,6 +6,7 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using System.Windows;
+using OliviaAddInPro.Helper;
 using OliviaAddInPro.Model;
 using OliviaAddInPro.Services;
 
@@ -19,6 +20,8 @@ namespace OliviaAddInPro
             OnRefres();
         }
 
+        public bool hay_cambios = false;
+  
 
         public override string DisplayName
         {
@@ -40,11 +43,14 @@ namespace OliviaAddInPro
         public void OnGuardar()
         {
             ConfigServ.Serv.Guardar(Configuracion);
+            HelperGlobal.ponMsg("Se ha guardado la configuración");
+            hay_cambios = false;
         }
 
         public void OnRefres()
         {
             Configuracion = ConfigServ.Serv.Leer();
+            hay_cambios = false;
         }
     }