topic Re: Is there any way to get a reference to all unsaved edits in a featurelayer? in ArcGIS API for Silverlight Questions

Is there any way to get a reference to all unsaved edits in a featurelayer?

EinarKløvstad — Tue, 04 Jan 2011 07:27:35 GMT

Is there any way to get a reference to all unsaved edits in a featurelayer?

Re: Is there any way to get a reference to all unsaved edits in a featurelayer?

AliMirzabeigi — Tue, 04 Jan 2011 13:40:03 GMT

You can subscribe to "BeginSaveEdits" event of the FeatureLayer; in "BeginEditEventArgs" parameter of the handler check for "Adds", "Deletes", and "Updates", i.e. e.Adds, e.Deletes, e.Updates respectively.

Re: Is there any way to get a reference to all unsaved edits in a featurelayer?

Anonymous User — Wed, 05 Jan 2011 19:15:52 GMT

Original User: w3webster

Thanks Ali
That is what I am currently doing, but I must confess I rather not do that bookkeeping myself especially since the collection obviously must be kept by the featurelayer (or its parent).
The reason I need this, is to do custom validation of the edits before they are saved. I imagine that that is quite a common task. Is there any plans to open the API to get hold of that collection?

Re: Is there any way to get a reference to all unsaved edits in a featurelayer?

dotMorten_esri — Wed, 05 Jan 2011 20:27:47 GMT

There is no way to get to a collection of 'edits'.
I suggest you do the validation of the edit before the edit itself is pushed to the feature layer.

What type of validation are you trying to perform?

Re: Is there any way to get a reference to all unsaved edits in a featurelayer?

Anonymous User — Fri, 07 Jan 2011 08:20:40 GMT

Original User: w3webster

Validations we do:
First of all: different users can only edit in their own areas. On top of that, some feature category�??s must be placed inside other features category�??s etc (this could be done by topology rules on the server, but for usability reasons we do want to validate this on the client)

Re: Is there any way to get a reference to all unsaved edits in a featurelayer?

dotMorten_esri — Fri, 07 Jan 2011 18:03:41 GMT

The editor is only meant for simple editing scenarios. For more advanced custom scenarios like this, I suggest you use the Draw class instead and handle the user input/validation. On draw completed, simply perform your validations then add the feature to the FeatureLayer. Ie myFeatureLayer.Graphics.Add(newlyAddedGraphic), and the feature will automatically get pushed back to the server.