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FeatureLayer: "graphic-add" event is not fired consistently.

mikechen

Hi,

I have added a FeatureLayer to my web map for online editing. I have also set an event listener to the "graphic-add" event.

I use the Editor widget and the TemplatePicker widget.

I first choose a template from the TemplatePicker, and then digitize a graph on the map.

The plan is to call a function to update the attribute information after the graph is added to the featurelayer.

myEditingFLayer.on("graphic-add", updateGrpAttribute);
updateGrpAttribute : function(evt){
var gg = evt.graphic;
gg.attributes["UserName"] = userName;
gg.attributes["LASTUPDATE"] = updateTime;
gg.attributes["CntyFips"] = CNTY_ID;
gg.attributes["CAPTUREMETH"] = "Placed on Map";
myEditingFLayer.applyEdits(null, [gg], null, EditNew_Success, error);
}

But, this handler is not consistently fired. If I see the progress bar displays, the designated event handler will not be executed.

Please advise.

Thanks,

Mike

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khutchins

If you want to update a feature just before its added to a feature layer your best bet is to listen to the feature layer's before-apply-edits event. This event fires just before features are added to the layer.

mikechen

Kelly, thanks for the reply.

I am not sure how to listen to "before-apply-edits" event.

When I use the "graphic-add" event, my scenario is as follows:

(1) choose a template from the TemplatePicker widget.
(2) digitize a graph on the map. Since the graph is based on selected template, I suppose the graph is added to the template's corresponding featurelayer once the sketch is finished. Is this understanding right?
(3) listen to the "graphic-add" event and update the attribute information.

If I listen to the "before-apply-edits" event, how should I listen to this event based on my workflow?

Thanks,

Mike

khutchins

Are you using the editor widget? Or are you using the template picker and draw toolbar on their own? If you are using the editor widget it will take care of adding the graphic to the feature layer for you and all you need to do is add logic to listen for on-before-apply-edits.

If you are using the template picker and draw toolbar without the Editor widget then take a look at this sample. Note that the sample code listens for draw-end and then calls applyEdits to add the graphic to the Feature Layer. At this point in the code you can associate attribute information with the feature.

Edit without editor widget | ArcGIS API for JavaScript

mikechen

Kelly, thanks for your reply.

I am using TemplatePicker widget and Editor widget. I have figured out how to apply "before-apply-edits" event. But, the designated event listener is not fired at some cases, too. This problem is the same as "graphic-add" event.

The problem happens after double-click to finish the sketch, if the progress bar on the Editor widget shows up, both event listeners will not be fired and the attached attributeInspector popup without any attribute updating.

If the progress bar does not show up, both event listeners will be fired and the attached attributeInspector popup with the updated attribute information.

If the progress bar show up, it will take a while (in seconds) for the digitized sketch to show up.

Since the event listeners are designed for their corresponding event, they should be fired no matter how long it takes for the edits to be applied.

I don't know why the event listeners are not fired if the progress bar shows up.

Thanks for your help.

Mike

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