About "esri/tasks/query"  's question

zhongrenGu

my codes:

in chorom:

Now  I confused,  my god  ,what happend??

they are the same in  local/web api !

rscheitlin

Zhongren,

  Is there a reason that you are not using a local variable for query and queryTask in your initData function? Why would you want it to be scoped to the whole widget source by using 'this.' ? Your overall issue is a scope problem. Inside the execute block the scope of 'this' is not the same as it was before.

initData: function () {
  var query = new Query();
  query.outFields = [this.config.queryFields];
  query.outSpatialReference = this.map.spatialReference;
  query.where = this.config.queryWhere;

  var queryTask = new QueryTask(this.config.queryTaskUrl);
  queryTask.execute(query,
      lang.hitch(this, function (featureSet) {
        console.log(featureSet);
      }),
      lang.hitch(this, function (error) {
        console.log(error);
      })
  );
  .....
},