Hi!
I'm stuck on this legend creation.
I am creating a legend for a unique renderer for feature service "ct" in function funcall (called by a button) It creates a choropleth map.
The user then deletes the new map (in function funcalldel), and can create another with a new renderer, and so on. (the code shown is truncated for clarity)
I can create a legend the first time, but I can't seem to use destroy method or any other way to delete the existing legend and create a new one.
function funcall(radioOne,radioTwo,radiohs,radioadult){ dijit.byId("create").setAttribute('disabled', true); //map.removeLayer(ct) ct = new esri.layers.FeatureLayer("http://gis-server.cc.wmich.edu/harcgis/rest/services/hdream/tract_sex_age2/MapServer/0",{ mode: esri.layers.FeatureLayer.MODE_ONDEMAND, opacity: .7, outFields: ["*"], }); else if (mandf.checked && sen.checked) { var maxval=1049; var field="MF_Senior_ "; var tracttemplate=new esri.InfoTemplate(); tracttemplate.setTitle("<b>Male/Female Senior (65+)</b><br>"); tracttemplate.setContent("<b>Population: </b>${MF_Senior_ }" ); ct.setInfoTemplate(tracttemplate); } var renderer = new esri.renderer.SimpleRenderer(new esri.symbol.SimpleFillSymbol().setOutline(new esri.symbol.SimpleLineSymbol().setWidth(0.5))); renderer.setColorInfo({ field: field, minDataValue: 0, maxDataValue: maxval, colors: [ new esri.Color([255, 255, 255]), new esri.Color([0, 42, 255]) ] }); var legendLayers = []; ct.setRenderer(renderer); map.addLayer(ct); map.reorderLayer(ct,15); legendLayers.push({layer:ct,title:'Population'}); var legendDijit = new esri.dijit.Legend({ map: map, layerInfos:legendLayers }, "legendDiv"); legendDijit.startup(); }; function funcalldel(legendDijit){ if (ct.loaded = 'true') {map.removeLayer(ct)}; dijit.byId("create").setAttribute('disabled', false); }; dojo.ready(init); </script>
I'm sure I need to destroy the legend somewhere. I tried that in "funcalldel", but an error appear because the variable "legendDijit" is not recognized.
Maybe use an if..then else?
Thanks!
