NetworkWatcher Exception

oscar_f

Hi,

I'm tryig to use the NetworkWatcher (using RAB 5.09)

I copied exactly the same  example  on the manual.

I got  this  Exception:

System.ArgumentException was caught
  Message="
Parameter name: url"
  ParamName="url"
  Source="ABB.Robotics.Controllers"
  StackTrace:
       at ABB.Robotics.Controllers.Internal.Event`2.Unsubscribe(Url url, EventHandler`1 handler, Boolean internal)
       at ABB.Robotics.Controllers.Internal.Event`2.Unsubscribe(IUrlBo undObject urlObject, EventHandler`1 handler, Boolean internal)
       at ABB.Robotics.Controllers.Internal.NetworkScanner.remove_Chan ged(EventHandler`1 value)
       at ABB.Robotics.Controllers.Discovery.NetworkWatcher.set_Enable RaisingEvents(Boolean value)
       at ABB.Robotics.Controllers.Discovery.NetworkWatcher..ctor(Bool ean enableRaisingEvents, IEnumerable controllers)
       at ABB.Robotics.Controllers.Discovery.NetworkWatcher..ctor(Cont rollerInfoCollection controllers, Boolean enableRaisingEvents)
       at ABB.Robotics.SchiappaIF.C_OnLineStatus.Connect(Object RobotIPAddress)

Here  my code:

Public Function Connect(ByVal RobotIPAddress) As Boolean
Try
IPAddress = RobotIPAddress
ABBScan = New NetworkScanner
ABBScan.Scan()
'
Me.ABBNetworkWatcher = New NetworkWatcher(Me.ABBScan.Controllers, False)
AddHandler Me.ABBNetworkWatcher.Found, AddressOf Me.NetworkAddController
AddHandler Me.ABBNetworkWatcher.Lost, AddressOf Me.NetworkRemoveController
Me.ABBNetworkWatcher.EnableRaisingEvents = True
Catch ex As Exception
Parent.DebugLog.Add(1, 0, "Function C_OnLineStatus.Connect: " + ex.Message)
Throw New Exception("Exception:C_OnLineStatus.Connect:NetworkWatcher:" + ex.Message)
End Try
'....

Any suggestion?

Oscar

oscar_f

Additional  Information:

 

I tested  it  in  Virtual controller and  in the real controller.

I  got  the same  behaviour.

Someone  is  using  the networkwatcher   with  RAB 5.09  with success?  can  attach the   code  used?

ReneK

Hello,

it seems that I have the same problem. Do you already have a solution to this?

BR

Rene

 

Danny Rus

Hi!

There is a bug when creating a NetworkWatcher object with the enableRaisingEvents paramater set to false (which also is the case when using the default constructor). The problem is solved in RAB 5.10.

A workaround that should work is this (in c#), if you want the EnableRaisingEvents disabled:

_watcher = new NetworkWatcher(true); _watcher.EnableRaisingEvents = false;