Retrieve GP Messages from Geoprocessor Activity

Ryan Kelley

17 Maj 2017 15:31

Does anyone have an example of how to return messages from a GP services with the 'Messages' output argument? I am looping through the messages argument as an object, but keep getting a serialization error. 

 

Like: 

 

There was a workflow error running activity: Exception has been thrown by the target of an invocation. Workflow 'CalculateAcresOnTheFly' failed Aborted exception: 'Type 'ESRI.ArcGIS.Client.Tasks.GPMessage' cannot be serialized. Consider marking it with the DataContractAttribute attribute, and marking all of its members you want serialized with the DataMemberAttribute attribute. If the type is a collection, consider marking it with the CollectionDataContractAttribute. See the Microsoft .NET Framework documentation for other supported types.'. Type 'ESRI.ArcGIS.Client.Tasks.GPMessage' cannot be serialized. Consider marking it with the DataContractAttribute attribute, and marking all of its members you want serialized with the DataMemberAttribute attribute. If the type is a collection, consider marking it with the CollectionDataContractAttribute. See the Microsoft .NET Framework documentation for other supported types.

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  Permanently deleted user

  16 Januari 2019 18:40

  I am having the same issue.  Did you figure this out?

   

  Thanks!

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  Ryan Kelley

  28 Januari 2019 13:15

  Hi Shana,

   

  Yes, I did. Do you still need help? Sorry for the late reply... just getting back after the government shutdown.

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  Emmarita Manzan

  03 September 2019 10:57

  Hi Ryan,

   

  could you explain me how you figured it out?

   

  Maybe you can post an example...

   

  Thank you.

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