FeatureLayer.AddAttachment(...) seems to be broken as of the 10.2 release. You can see in Fiddler that the POST happens, but the content of the stream/file is not sent. It works as expected with the 10.1 version of the SDK.
Sorry - this is a known issue in the 10.2 release - we are currently working on a fix which will be released as part of the Toolkit source code on GitHub: https://github.com/Esri/arcgis-toolkit-sl-wpf.
The fix will then be included in the next release of the ArcGIS Runtime SDK for WPF.
Thanks for the quick reply. I have a couple follow-up questions:
Can you confirm if the Toolkit fix you mentioned will be a change to the AttachmentEditor control so that it just implements its own upload, rather than using the FeatureLayer.AddAttachment method?
Can you provide any sort of timeline for a fix to the FeatureLayer.AddAttachment method?
Can you confirm if the Toolkit fix you mentioned will be a change to the AttachmentEditor control so that it just implements its own upload, rather than using the FeatureLayer.AddAttachment method?
Unfortunately I can't provide specific implementation details at this time.
Can you provide any sort of timeline for a fix to the FeatureLayer.AddAttachment method?
We should be able to make this available in the next few weeks, hopefully sooner.
This issue is seems to be related to the NIM063669. NIM063669: Corruption in the multi-byte file name while downloading it with Attachment Editor in Silverlight API.
In Silverlight API ver3.2, this error occurs with IE & Firefox, Chrome.
