|  | @@ -18,7 +18,7 @@ namespace Aitex.Core.WCF
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				|  |  |          public event Action<EventItem> OnEvent;
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				|  |  |          public event Action OnDisconnectedWithRT;
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				|  |  |          public event Action<bool> LockAndUnlockEvent;
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				|  |  | -        public event Func<IEnumerable<string>,bool?> OnUpdateWaferEvent;
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				|  |  | +        public event Action<IEnumerable<string>> OnUpdateWaferEvent;
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				|  |  |          public bool InProcess { get; set; }
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				|  |  |  
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				|  |  |          private IEventService _service;
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				|  | @@ -53,7 +53,7 @@ namespace Aitex.Core.WCF
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				|  |  |                  LockAndUnlockEvent(obj);
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				|  |  |              }
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				|  |  |          }
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				|  |  | -        private bool? _sevice_OnUpdateWaferEvent(IEnumerable<string> modules)=> OnUpdateWaferEvent?.Invoke(modules);   
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				|  |  | +        private void _sevice_OnUpdateWaferEvent(IEnumerable<string> modules)=> OnUpdateWaferEvent?.Invoke(modules);   
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				|  |  |  
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				|  |  |  
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				|  |  |          public bool IsConnectedWithRT
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				|  | @@ -174,7 +174,7 @@ namespace Aitex.Core.WCF
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				|  |  |  
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				|  |  |          public event Action<bool> OnLockAndUnlockEvent;
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				|  |  |  
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				|  |  | -        public event Func<IEnumerable<string>,bool?> OnUpdateWaferEvent;
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				|  |  | +        public event Action<IEnumerable<string>> OnUpdateWaferEvent;
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				|  |  |  
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				|  |  |          public EventServiceClient(EventServiceCallback callbackInstance)
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				|  |  |              : base(new InstanceContext(callbackInstance), "Client_IEventService", "EventService")
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				|  | @@ -200,7 +200,7 @@ namespace Aitex.Core.WCF
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				|  |  |                  OnLockAndUnlockEvent(isLock);
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				|  |  |              }
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				|  |  |          }
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				|  |  | -        bool? CallbackInstance_OnUpdateWaferEvent(IEnumerable<string> modules) => OnUpdateWaferEvent?.Invoke(modules);
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				|  |  | +        void CallbackInstance_OnUpdateWaferEvent(IEnumerable<string> modules) => OnUpdateWaferEvent?.Invoke(modules);
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				|  |  |  
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				|  |  |          public bool Register(Guid id)
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				|  |  |          {
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