Devextreme Load Json As Datasource Using Knockout
I'm new to both javascript and devextreme and currently finding my way through. I created a webpage which loads a json-file, which worked well, but I can't get it done using devext
Solution 1:
The "getData()" method should return a proimise in order to work with dxDataGrid. Probably something like this:
var getData = function () {
var deferred = $.Deferred();
var xmlhttp = newXMLHttpRequest(),
json;
xmlhttp.onreadystatechange = function() {
if(xmlhttp.readyState === 4 && xmlhttp.status === 200) {
json = JSON.parse(xmlhttp.responseText);
console.log(json);
//return json;
deferred.resolve(json); // json should be array here
}
};
xmlhttp.open('GET', 'data.json', true);
xmlhttp.send();
return deferred.promise();
};
DevExtreme works with JQuery promise. I'm not sure about other promise libraries.
Update 1
It looks like you get array of arrays. In this case you need just take first element:
deferred.resolve(json[0]); // json should be array here
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