January 5th, 2009 Help with Data Store
I am trying to populate a google map with markers about 200, using data store.
If i load the data to a GridPanel the data shows with no problem.
But if I try as indicated below. The line "var count = store.getCount();"
Gets skipped or returns a zero.
If I put break on it (using firebug) and step through. everything loads corectly!!!
What could be causing this behavior?
Any pointers are appreciated
//********************************************
// create the Data Store
store = new Ext.data.Store({
// load using HTTP
proxy: new Ext.data.HttpProxy({
url: 'http://localhost/DataStream.aspx',
method: 'POST',
listeners: {
loadexception: function(proxy, store, response, e) {
alert(e.message);
}
}
}),
// the return will be XML, so lets set up a reader
reader: new Ext.data.XmlReader({
// records will have an "Item" tag
record: 'GeoData',
id: 'HOSPITAL_ID',
totalRecords: '@total'
},
[
// set up the fields mapping into the xml doc
// The first needs mapping, the others are very basic
{
name: 'HOSPITAL_NAME',
type: 'string',
mapping: 'HOSPITAL_NAME'
},
{
name: 'ACRONYM',
type: 'string'
},
{
name: 'LAT',
type: 'string'
},
{
name: 'LON',
type: 'string'
}])
});
store.on('loadexception',
function() {
alert("load exception")
});
store.load({
params: {
'testing',
'testing'
}
});
var LoadingM = new Ext.LoadMask('map', {
text: 'Initializing...'
});
var markersArray=;
LoadingM.enable();
//Suspect line
var count = store.getCount();
if(count > 0){
LoadingM.show();
store.each(function(r) {
// dataTest = r;
var lat = parseFloat(r.get('LAT'));
var lon = parseFloat(r.get('LON'));
if (isNaN(lat) isNaN(lon)) {} else {
var marker = createMarker(lat, lon);
//map.addOverlay(marker);
markersArray.push(marker);
}
//return false;
});
var cluster=new ClusterMarker(map, { markers:markersArray } );
cluster.fitMapToMarkers();
}
LoadingM.hide();
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