Made Bill.Number a UniqueCodeEditor

prs.classes/Entities/Bill/Bill.cs

@@ -16,7 +16,7 @@ namespace Comal.Classes
         public SupplierLink Supplier { get; set; }
         
         [EditorSequence(2)]
-        [CodeEditor(Visible = Visible.Default, Editable = Editable.Enabled)]
+        [UniqueCodeEditor(Visible = Visible.Default, Editable = Editable.Enabled)]
         public string Number { get; set; }
 
         [EditorSequence(3)]