topic Re: on selection complete runs multiple times in ArcGIS JavaScript Maps SDK Questions

on selection complete runs multiple times

LindaDunklee — Wed, 22 Feb 2017 19:26:08 GMT

I have a button that is being pressed to select features based on a query the user inputs. The function works, but the on "selection-complete" part is firing multiple times. When the button is clicked the first time, it fires once. When it is clicked the second time, it fires twice, etc. Is there any way to prevent this behavior? I want to include more in the on complete function but cannot because it is looping multiple times.

Sites.selectFeatures(siteSelection, FeatureLayer.SELECTION_NEW);
// when selection is complete, zoom to the selected features
Sites.on("selection-complete", function(){
map.setExtent(graphicsUtils.graphicsExtent(Sites.getSelectedFeatures()), true);

});

where site selection is defined by:

siteSelection = new Query();
siteSelection.returnGeometry = true;
siteSelection.outFields = ["*"];

siteSelection.where = queryField + " LIKE '%" + queryText + "%'";

Re: on selection complete runs multiple times

RobertScheitlin__GISP — Wed, 22 Feb 2017 19:52:31 GMT

Linda,

It sounds like you are adding the on selection complete event handler in your code more than once then. The can sometimes happen when a developer mistakenly add the event handler inside a function that gets called more then once in their code.

Re: on selection complete runs multiple times

LindaDunklee — Wed, 22 Feb 2017 20:19:30 GMT

I moved the on selection complete function outside of the function running on click of the button and it worked. Thanks for the help.

Re: on selection complete runs multiple times

RobertScheitlin__GISP — Wed, 22 Feb 2017 20:22:32 GMT

Linda,

Glad to help.

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