topic Re: add attribute to Graphic attributes in ArcGIS JavaScript Maps SDK Questions

add attribute to Graphic attributes

DaveOrlando — Sat, 11 Dec 2021 11:53:22 GMT

Graphic | API Reference | ArcGIS API for JavaScript

var feature = new Graphic(results, symbol, inPoints.attributes);
feature.attr("new_att", "new_value");

I would like to add an attribute to the existing attributes.

Is this not the intended syntax or use of the method?

Re: add attribute to Graphic attributes

RobertScheitlin__GISP — Wed, 18 Nov 2015 23:20:25 GMT

Dave,

Is the results array that you have an array of geometries or graphics? That is the only thing I can see in your code that leads to questioning.

Re: add attribute to Graphic attributes

DaveOrlando — Wed, 18 Nov 2015 23:34:30 GMT

the 'results' are from a geometryService.intersect so just geometries. The 'inPoints' are the original graphics which I use to marry the attributes back to the results

Re: add attribute to Graphic attributes

FilipKrál — Wed, 18 Nov 2015 23:34:44 GMT

Hi,

What do you mean by "attribute"?

The attr(name, value) method adds an attribute to the DOM node of the graphic, not to the graphic feature.

So setting feature.attr('something', 123) will result in the graphic dom node to be:

(although I am not sure what types of elements graphics are).

In order to add an attribute to the graphic feature, in the sense of adding a new field, use the setAttributes method.

Filip.

Re: add attribute to Graphic attributes

DaveOrlando — Sat, 11 Dec 2021 11:53:25 GMT

Thanks,

yes, I was trying to add to an existing attribute stack. I got it working with this.

atts = inPoints.attributes;
atts["new_att"] = "new_value";
var feature = new Graphic(results, symbol);
feature.setAttributes(atts);

thanks again.

Re: add attribute to Graphic attributes

DaveOrlando — Sat, 11 Dec 2021 11:53:27 GMT

or... back to my original code at top, I just realized you can add a new attribute directly using...

var feature = new Graphic(results, symbol, inPoints.attributes);
feature.attributes["new_att"] = "new_value";

Re: add attribute to Graphic attributes

AlexOliinyk — Tue, 16 May 2017 13:34:20 GMT

do you have real working demo ? I trying a lot of difference examples no one doesn't work for me (