Geoprocessing (intersecting / reading attributes / routing) with Javascript API

Question

Hello,

I am attempting to work with the Javscript API do the following.

Enter an address (address 1), intersect a polygon, get an address (address 2) from that polygon and route a line between the resulting points.

I am trying to find the proper functionality in the API to support this processing.

I found the routing support in the sample on the directions app at Directions | ArcGIS API for JavaScript.

There is also an example for point in polygon search at Geoprocessing - Point in polygon search | ArcGIS API for JavaScript .  Is there an basic example of this functionality available?

Does anyone have any example of reading attributes from a selected feature?

Thanks for your time!

RobertScheitlin__GISP · Answer

Christopher,

You need to look care fully at the API documentation the returned parameters for "select-result" is different than "select-result" code that I provided.

Search | API Reference | ArcGIS API for JavaScript | event-search-results

Your code would have to be:

//begin event handler  
 mySearch.on("search-results", function(e)  
 {            
     console.info(e.results);
     // This should return an array of results that have a extent and feature property        
 });   //end call process results function);  //end event handler

wcESRI · Answer

Robert,  thank you again.  However, your code issues an error in javascript.

My code is below.

//begin event handler
 mySearch.on("search-results", function(e)
 {
                
       console.info(e.result.feature);
                
 });   //end call process results function);  //end event handler

TypeError: Unable to get property 'feature' of undefined or null reference TypeError: Unable to get property 'feature' of undefined or null reference

The following code will produce a result but not very useful.

console.info(e.results[0].toString());

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

I can't seem to access the event object in the seach results to get the results.

https://developers.arcgis.com/javascript/jsapi/search-amd.html#searchresults

RobertScheitlin__GISP · Answer

Christopher,

Try using:

mySearch.on("select-result", function (evt){
  //Do something with the result feature 
  console.info(evt.result.feature);
});