topic About ESRI’ s drawing widget in Web AppBuilder Custom Widgets Questions

About ESRI’ s drawing widget

LeiZhou1 — Thu, 05 May 2016 15:22:56 GMT

Once the drawing widget is open, even without doing anything, a layer will be added to the operational list in the Layer List widget. But I don’t want this layer to add if a user does nothing; I only want this result layer added when a user draws something in the widget. Can we adjust something here? I found a function that should control this, called _pushAddOperation: function(graphics){ ….} in line 844 at the widget.js But have no clue how to change it. Thanks!

Re: About ESRI’ s drawing widget

RobertScheitlin__GISP — Fri, 06 May 2016 01:15:18 GMT

Lei,

That function _pushAddOperation has nothing to do with the layer getting added to the Layer list widget. You need to look at the _initLayers function. I have to say your not wanting the layers added until there are graphics added is very much against the norm. Almost all widget that I know of add layer to the map at startup. I guess you can call _initLayers when some graphic is being added and then add some logic to the function to say that it has been called already.

Re: About ESRI’ s drawing widget

LeiZhou1 — Wed, 11 May 2016 03:58:06 GMT

Yes, ESRI also said it may be against the basic rules. Thank you very much!