The below code posts a couple of vars to a php file which sends back a json object containing (in the test case) one object called 'faves' with 2 variables (let's say called var1 and var2). I can't seem to access the variables after the ajax call. The result is always an 'undefined' error message. I've tried:
On a page, I have a javascript json output that is generated through PHP. So, for instance, it would look like this:
Code: var upny_iniresults = { // "q_id" : "65977", // "q_txt" : "What is your favorite genre of Music?", "q_cdata" : [
And then PHP code that generates the JSON. I loop through a question, scan for the results (survey site) and display it as json data. Works perfectly. Basically, the JSON is important because I have existing functions that work with that data (display survey results of that question/etc)Here's the question.How can I generate the same Json output, so it can be read by my other jquery functions (Created by a previous developer, I am a PHP guy) by using Jquery POST as well as a query string. The idea is something like:
Code: $.post("create_json_results_for_this_question.php", $("#firstform").serialize()); # Firstform is the name of the form that is submitted.
So, would a jquery POST allow the JSON to load in my browser (which I will activate during a click function) just as my PHP json output works or is there another way? I just want to simulate the same effect, but be able to USE the jquery querystring that I have, which is:
$("#firstform").serialize());
because this lets me return survey results of a previously submitted question.My last q. was too convoluted and I realized my dilemma is just the json output.
Is there a way to make a javascript post request to MyPage.aspx, set a variable on MyPage.aspx, then do a javascript redirect to MyPage.aspx and still sustain the value of the variable posted to the page in the first place? As of now i'm successfully posting to my aspx page, and successfully redirecting as well, but i have been unsuccessful with sustaining that variable. I've tried using ViewState as well as Session, neither seem to work exactly how i'd like.
Essencially, I'm trying to send a post request as well as redirect to the same page Code:
Im trying to validate a form (easy) and POST it to a third party WCF service. I am able to validate and POST data to the service, but its returned data (in table format) keeps opening in a blank page with their url in the browser address bar. Can't have that, I need to grab the returned data and .append it to a div on my page. Here is what I have that FAILS
<script type="text/javascript"> $(document).click(function() { //cancel form
php page is echoing out:{"species":"Please select a species!"} I double checked the response from the php and firebug shows the same. On success alert is not alerting the JSON data instead, I'm receiving [object Object]. Why is that and how do what should I do to fix this?
In addition to fetching JSON you might want to POST it back to the server, but there is no postJSON method. You cannot use the generic ajax method, either. What is missing is the complement of "eval" to turn a JavaScript object in to JSON. The JSON.stringify function from www.json.org (see json2.js in JavaScript section) does the trick, but it would be nice if jQuery incorporated that out of the box, to save some hunting time.
Using the jquery ajax method to set the "type" to "json" and the "content-type" to "application/json" send and recieve JSON, but you must use JSON.stringify to convert your outgoing object to JSON. P.S.. a lot of forgiving parsers have resulted in a lot of articles on JSON being wrong. would I like to mention that here. Property names are JSON strings. JSON strings have double quotes. Therefore, property names have to be surrounded with double quotes. Single quotes are not JSON strings and not legal (JSON is not JavaScript).
Supposed that I have a json object but I don't know anything about its keys and values. Is there anyway to print out all the key and value pairs in that object?
Do any of you know if you can convert a JSON object into a Jquery object ? The reason i wish to do that is to be able to use the jquery selector to filter my Json data. (for example filter them based on their properties)
I'm a beginner in Jquery and I have a big doubt, follow at bellow the code to be better viewed: The method below is static and Static methods do not work with instance, For this reason I passed the 'nameLabel' that the typeis Label by parameter, however I need to catch the exception and show it to the user.
But I'm using Jquery and this method is used in a Ajax Request and I use the Json to pass the datas, how showed below: var idCliente= $("#<%= txtIDCliente.ClientID %>").val(); var nomeLabel = $("#<%= lblMensagem.ClientID %>"); var poligonal = "{ idCliente: " + idCliente + ", + lblMensagem: " + nomeLabel + " }"; But the problem is that I need to pass in my Json the nomeLabel with Label, but always a problem happen, because the same is showed like 'indefined'. How to solve this situation?
jsonObj={ key1: 'value for key1', nextKey: 'nextKey value', lastKey: 'value for the last Key' };
without knowing the structure of this object... is there a way to return the name of the keys?if it was a nested aray.. each key:value pair being a 2 element array I could do something like this:
var key = jsonObj[1][0]; // this would return 'nextKey'
Is there some way to determine the names of the keys ina json object, as if it was an associative array?
I have a very simple PHP script that returns JSON like this: {"question":"What day is it?"}
And I'm trying to call it from another page using Ajax. My code looks like this: var url = "/test.php"; $.get(url, function(data){ $.each(data, function(i, value) { alert(value); }, "json" ); });
When I run it I get each character printed out one at a time in a separate alert. And then when I used this line of code: alert(typeof data); It tells me that 'data' is a string. Shouldn't it be a JSON object?
I want to programatically re-center the map and add markers elsewhere in my code, but don't know how to access this JSON object to modify it.
The way I'm currently doing this is to call gMap again with some new configuration, but I don't think this is right as I think it's re-creating the map all over again.
How might I go about getting the parsed JSON object in the complete function? The json param shown below seems to just receive the http status text message.
My 2nd question would be how should I knwo if the first place what params I can receive to a callback function like this?
Is there a Jquery method I could use to quickly parse a JSONP object, looking for an embedded object called "error" ?? If I were to do the following: jQuery.each(query.data.error, function(i,error){ //....} And there wasNO .error in the returned JSON, what should I expect to happen? Basically, I want to know if "error" is in the JSON and process accordingly.