topic Re: has anyone been able to serialize IdentifyResults and/or it's collection in ArcGIS API for Silverlight Questions

has anyone been able to serialize IdentifyResults and/or it's collection

SangamLama — Thu, 17 Feb 2011 12:44:49 GMT

Hi,

I'm carrying out an IdentifyTask on the provider layer of my application. It returns a List<IdentifyResult> which needs to be passed to the SL side through my WCF service. I was looking this example,

http://blogs.esri.com/Dev/blogs/silverlightwpf/archive/2010/03/11/Sending-geometry-between-Silverlight-and-the-server-using-WCF.aspx

and MapPoint gets serialized just as easily. But IdentifyResult doesn't.

Help?

Re: has anyone been able to serialize IdentifyResults and/or it's collection

JenniferNery — Thu, 17 Feb 2011 15:52:51 GMT

What error are you getting? Are you serializing just the geometry? I'm guessing the trouble is serializing the entire Graphic, which includes Symbol.

This related thread might help: http://forums.arcgis.com/threads/8774-save-layer-to-xml-file

Re: has anyone been able to serialize IdentifyResults and/or it's collection

SangamLama — Thu, 17 Feb 2011 17:29:17 GMT

What error are you getting? Are you serializing just the geometry? I'm guessing the trouble is serializing the entire Graphic, which includes Symbol.

This related thread might help: http://forums.arcgis.com/threads/8774-save-layer-to-xml-file

The error's a bit difficult to understand to be honest. I wont copy/paste the entire strack trace here, but here's how it goes

An ExceptionDetail, likely created by IncludeExceptionDetailInFaults=true, whose value is:
System.InvalidOperationException: An exception was thrown in a call to a WSDL export extension: System.ServiceModel.Description.DataContractSerializerOperationBehavior
contract: Silverlight.ESRIMapping:ESRIMappingService ----> System.Runtime.Serialization.InvalidDataContractException: Type 'System.Windows.Input.TouchDevice' 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.
at System.Runtime.Serialization.DataContract.DataContractCriticalHelper.ThrowInvalidDataContractException(String message, Type type)
.....
.....

what you said does make sense. Currently, I'm trying to declare a serializable class where I have all the properties as in IdentifyResult, but skip the symbol because I don't need it here...

Re: has anyone been able to serialize IdentifyResults and/or it's collection

SangamLama — Fri, 18 Feb 2011 12:42:22 GMT

nvm. Along the way, I had been trying to serialize a map itself. How brave and stupid 😛

The error's a bit difficult to understand to be honest. I wont copy/paste the entire strack trace here, but here's how it goes

An ExceptionDetail, likely created by IncludeExceptionDetailInFaults=true, whose value is:
System.InvalidOperationException: An exception was thrown in a call to a WSDL export extension: System.ServiceModel.Description.DataContractSerializerOperationBehavior
contract: Silverlight.ESRIMapping:ESRIMappingService ----> System.Runtime.Serialization.InvalidDataContractException: Type 'System.Windows.Input.TouchDevice' 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.
at System.Runtime.Serialization.DataContract.DataContractCriticalHelper.ThrowInvalidDataContractException(String message, Type type)
.....
.....

what you said does make sense. Currently, I'm trying to declare a serializable class where I have all the properties as in IdentifyResult, but skip the symbol because I don't need it here...