topic OnRenderEnd event in ArcGIS JavaScript Maps SDK Questions

OnRenderEnd event

BrianBeck — Tue, 07 May 2013 20:54:56 GMT

I have not been able to find any events either on the Map or FeatureLayer objects that can be connected to for when a layer has finished rendering on the map. I have code that sets the Renderer of a FeatureLayer dynamically based on user input. When I call FeatureLayer.redraw() the layer shows the new symbology on the map, but my legend doesn't update until I call legend.refresh().

I have wrapped my Renderer code in its own custom widget, which is not aware of the legend. What I would like to do is connect the legend.refresh() to either a map event or layer event. The ideal event would be one that is fired when a layer (or the map) finishes drawing, but I haven't found an event in the API for onDrawEnd of the Map or FeatureLayer.

Is there an event that is fired when a layer or the map finishes drawing even if the extent hasn't changed?

Re: OnRenderEnd event

NiranjanBorawake — Wed, 08 May 2013 06:26:22 GMT

Hello Brian,

I think you are looking for onUpdateEnd event of FeatureLayer.

Please have a look at this example and understand how "onUpdateEnd" event is used.

Thanks,
Niranjan

Re: OnRenderEnd event

BrianBeck — Wed, 08 May 2013 15:25:14 GMT

Hello Brian,

I think you are looking for onUpdateEnd event of FeatureLayer.

Please have a look at this example and understand how "onUpdateEnd" event is used.

Thanks,
Niranjan

Thanks Niranjan,

I looked into the "onUpdateEnd" event and unfortunately this isn't quite what I need. The "onUpdateEnd" event only occurs when the FeatureLayer content is refreshed. I am using the "redraw" method of the FeatureLayer to redraw the layer with the new symbology because I do not want to requery the server. The "redraw" method does not update content in the FeatureLayer so the "onUpdateEnd" event is not triggered.

I guess what I really need is an "onDrawEnd" event.