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				@@ -72,8 +72,7 @@ public partial class NotificationPanel : UserControl, IPanel<Notification> 
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				         Notifications.HiddenColumns.Add(x => x.Closed); 
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				-        Notifications.DefaultOptions.AddRange(DynamicGridOption.RecordCount, DynamicGridOption.FilterRows, DynamicGridOption.SelectColumns, 
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				-            DynamicGridOption.MultiSelect); 
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				+        Notifications.Reconfigure(options => options.AddRange(DynamicGridOption.RecordCount, DynamicGridOption.FilterRows, DynamicGridOption.SelectColumns, DynamicGridOption.MultiSelect)); 
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				         Notifications.SetValue(Grid.RowProperty, 0); 
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				         Notifications.SetValue(Grid.ColumnProperty, 1); 
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				         Notifications.Margin = new Thickness(0); 
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				@@ -135,7 +134,7 @@ public partial class NotificationPanel : UserControl, IPanel<Notification> 
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				     public bool IsReady { get; set; } 
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				-    public event DataModelUpdateEvent OnUpdateDataModel; 
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				+    public event DataModelUpdateEvent? OnUpdateDataModel; 
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				     private Button CreateButton(string caption, BitmapImage? umage, Func<Button, CoreRow[], bool> action) 
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				     { 
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