I am attempting to use the return value from a nested ajax function as the value for a variable in its parent. However, despite being able to successfully assign the variable within the nested function, it reverts back to its original value after the child function has terminated. Below is the code:
[Code]...
Ok, so I've built a member search using ajax to change the results each time a filter is changed. It works great, except one minor issue that I'm struggling with...I just can't specify dynamically in the parent file that linkclass$id opens linkclasscontent$id as I don't know of any way to pass that $id variable back over to the parent.
View 3 Replies View RelatedI have a function which has a nested function in it. I need some variables in the first function to be available in the nested function. How am I supposed to declare a global variable in jquery?
View 4 Replies View RelatedI'm having trouble calling a function using a variable, from within a parent function. For instance:
function parent(){
function child(){
console.log("It worked")[code]....
That results in "TypeError: 'undefined' is not a function (evaluating 'window[test]()')"
The code is below but basically I have two global variables, then I have a function and then a function within that, I am simply trying to update these global variables from within the nested function so i can then go on and use them in another function! this sounds like quite a straight forward request to me, but maybe it can not be done? When I do an alert on the variables (after I have apparently updated their values) I get 'undefined'!
Code JavaScript:
var resultLatB;
var resultLngB;
function getLatLngFromTown(town, callbackFunction) {
var localSearchB = new GlocalSearch();
localSearchB.setSearchCompleteCallback(null,
function() {
if (localSearchB.results[0]){
resultLatB = localSearchB.results[0].lat;
resultLngB = localSearchB.results[0].lng;
pointA = resultLatB;
pointB = resultLngB;
//THIS WORKS
alert("Test 1 = " + resultLatB);
alert("Test 1 = " + resultLngB);
}});
localSearchB.execute(town + ", UK");
//DOESN'T WORK... SHOULD IT?
alert("Test 2 = " + resultLatB);
alert("Test 2 = " + resultLngB);
}
getLatLngFromTown("oxfordshire",null);
//I WANT THIS TO WORK!
alert("Test 3 = " + resultLatB);
alert("Test 3 = " + resultLngB);
So I'm currently working on a ASP.NET Webforms site and I've run in to a small problem. On my .cs file I have the following Webmethod
[WebMethod]
public static string IsJobEditable(int jobid){
try{
string isEditable = "false";
JobsBLL jbl = new JobsBLL();
int jobStatusId = jbl.GetJobStatusId(jobid);
//If the jobs is either waiting or being edited it is
okay to edit it
if(jobStatusId ==
Convert.ToInt32(ConstantsUtil.JobStatus.Waiting) || jobStatusId ==
Convert.ToInt32(ConstantsUtil.JobStatus.Edit)){
isEditable = "true";
}return isEditable;
}catch (Exception ex){
throw ex;
}}
This function in this case will ALWAYS return TRUE as a string. On Aspx page I have the following
$(function () {
$.ajax({
type: "POST",
url: "Coordination.aspx/IsJobEditable",
data: "{jobid:" + jobid + "}",
contentType: "application/json; charset=utf-8",
dataType: "text",
success: function (result) {
alert(result);
//This is written out in the alert {"d":"true"}
I want this in a variable as a string so I can do a check on it before I do some other actions. The format is not a String so I cannot split on it to retrieve the "true" part.
},
error: function (err, result) { alert(err); }
});});
As you can see in the comments the value I get back in the Callback method is in to me a weird format. The type is unknown and I need this value to be able to proceed with my entire method surrounding the small portion of the Javascript. Where to access the result variable / data as a var or anything else that will let me put it into a var (as a string).
I tried creating a global function to calculate the distance between 2 points.
jQuery.distance(p1, p2){
var dx = p2.x - p1.x;
var dy = p2.y - p1.y;
return Math.sqrt(dx^2 + dy^2);
};
Somewhere else within my code, I declare a new variable in order to store the value returned by the distance function.
var distance = $.distance(particle1, particle2);
However this is not working.
I'm trying to make a call to .ajax and as a result set a value in a hash (for another call to jquery-ui)
I get the data coming back fine, could put in in a text field in html but not the hash where I want it.
Here below are the parts of my code that I'm using
//setting up datepicker
$(courseStartDateHtmlId).datepicker({
.....
defaultDate : ($(courseStartDateHtmlId).val() != "") ?
[Code].....
I thought that the value of startDate would end up as the defaultDate param for datepicker. No luck. Only an obscure little message in firebug console: "missing: before statement"
I am just trying to learn a little bit about jQuery.Now I have a problem with returning a value from a function.The following code works fine, when I tested it with alert(price) or any other way of echoing the value directly. But if I try something like var test = getPrice(324), the variable test would always be undefined.
function getPrice(id)
{
$.get('db.xml', function(d){[code]....
I assume that the nested functions are part of the problem,
I just want to know how can i pass the return value of a javascript function to a xsl variable.
I have an xsl file and from that file i will call a javascript function
then the result will be stored in to the <xsl:variable> how will i do
that? Or is it really possible to do that or is there other way of doing
it?
At the moment i got the following:
[Code]...
I'm not too good with programming, but I'm trying to get my feet wet with some nice little AJAX tools. I have some things currently working, but I'm trying to re-write the code so I can reuse these modules for a number of functions....As of now, I have a function that returns XHR requests [ ajaxRequest(){} ]. I am calling this function inside an XML Parser called [ ajaxParser(){} ]. Once that's created, I have the following code:
Code:
xmlDoc = new ajaxRequest() xmlDoc.onreadystatechange = function(){
if (xmlDoc.readyState == 4){
if (xmlDoc.status == 200){[code]....
At this point, I want the function to return an object that holds all the XML Node names, lengths, textContent, etc. I would like to be able to call this in any other function I write and begin traversing the nodes there. Something like root = new ajaxParser(file.xml);I tried "return parentMenuList;" except the length return is undefined. What I see in the DOM inspector is an object called root (with no other properties to it).
I've been racking my brain for a couple hours now and doing a lot of searching and I cannot seem to find an answer. I want to know if it is possible to return the xmlhttp.responseText value from an AJAX function to the function that originally called the AJAX function.
Code:
//Set handler for server response.
xmlhttp.onreadystatechange = function()
{
[Code]....
I want to return the my_response variable to the original caller. No matter what I try I have been unsuccessful. I even tried assigning it to the global window variable using window.my_response = xmlhttp.responseText but it ends up being undefined.
Every example I've seen of using AJAX pretty much does something inside of the if (xmlhttp.status == 200) part to update the web page. I really do not want to do that.
Can I return the value?
It felt like 99% of everything I do with jQuery involves a database some tree-structure so I figured I'd try jsTree out. I uploaded the demo and the way it seem to work is for every parent in the tree it calls a function get_children (PHP) with AJAX which makes a SELECT-query for that node to get the immediate children.
Am I missing something or isn't that extremely demanding on the database? The way I always do is get as much as I can from the database in one go then put it into PHP-arrays. With that plugin as I've seen a lot is that they put all the database-calls inside a class, do all those queries get pre-loaded or something when you call "new Database"? Or is a SELECT-query for a few rows just not that demanding at all?
Ok...so here is what I have:
function myClass() {
this.checkLogin = function(name,pwd) {
if(name.length > 0 && pwd.length > 0) {[code]....
Everything works above. The first alert shows that this.status was set to 'error'. However, if I call myClass.getStatus(), I get undefined. How can I get the parseData function to set the variables in the parent function?
How do I return false (or true) from within a nested control structure.For example, I'm using jquery and I would like to do some basic validation:I want to pass to a custom function named checkDefault every element with the class required.
function checkDefault(elem) {
elem.each(function(){
if(elem.val() == elem.attr('title')) return false;
[code].....
I am having a problem of calling the user defined JS function after I make the AJAX call. Basically, I created couple radio buttons on the main html page. When the user clicks on one of the radio button, it will trigger the AJAX call and return another html file in the "div" content that I set in the main html page. The other html file contains a user defined JS function (e.g. "updateContent()") which use the onclick event handler to call the function. When I'm running the app, and click on the button. I had seen the firebug was complaining the "updateContent() is not defined" error. The function itself works fine and must be defined properly.
Here is the code in the main.html page:
Code:
<script type="text/javascript">
var asyncRequest;
function getTools(url){
try
[Code].....
I am having a problem of calling the user defined JS function after I make the AJAX call. Basically, I created couple radio buttons on the main html page. When the user clicks on one of the radio button, it will trigger the AJAX call and return another html file in the "div" content that I set in the main html page. The other html file contains a user defined JS function (e.g. "updateContent()") which use the onclick event handler to call the function. When I'm running the app, and click on the button. I had seen the firebug was complaining the "updateContent() is not defined" error. The function itself works fine and must be defined properly. Here is the code in the main.html page:
Code:
<script type="text/javascript">
var asyncRequest;
function getTools(url){
try
{
asyncRequest = new XMLHttpRequest();
[Code]..script type=
I have nested markup like this
Code HTML4Strict:
<li><span></span></li>
I have different click functions, one attached to the li and the other to the span.
When I click on the span they both run. Ending the span's event handler with return false; prevented that from happening, which is what I want. But I'm not sure I understand why it worked.. I know, for example, if I was clicking on an anchor, return false would stop the browsers default action of following the href value. Same for submitting a form, return false will stop this. I don't think I understand why this would stop a completely different function from being triggered..
I want to assign value to global variable in javascript from jquery ajax function.
Here i need the value of trueFalse from success function.
I'm trying to fetch JSON contents via ajax() from a file using this code:
// grab pages via AJAX request
sm.pages = (function() {
var json = null;
$.ajax({
async: false,
global: false,
url: 'pages.json',
dataType: 'json',
success: function(data){
json = data;
console.log(data);
}});
return json;
})();
One problem though. The success function doesn't seem to be firing at all even though I can see the request was successfully in Firebug.
I have been trying to figure this out for a few days now and have finally come to the point where I think I got it but may just need a little push to get what I want.
Heres the situation:
I have this function that uses ajax to access a database and returns the results in the responseText. That part is working fine, I have confirmed that the responseText contains the information that I need
**************code*****************************************
//new ajax already created and assigned to the variable xmlhttp//
var response_recieved = "some data";
function get_answer(Table_Name, Field_Name, Data_Type) {
[Code]....
As evidence by my posting, this is not working correctly. The variable response_recieved is coming up undefined outside of the callback function assigned to the onreadystatechangeproperty.
Based on the information that I have gathered online from various forums, I believe this issue has to deal with a problem with closure in the callback function assigned to onreadystatechange property. I don't think it has any. Based on the fact that there is no anonymous function in that function. But my problem is that the call back function is anonymous itself... I think???
get the variable response_recieved to survive outside of this function.
Theres nothgin wrong with my ajax, it works and is sending other variables but whe i want to send "pood" from
function farmers(pood, happy)
i twill not work. now when i call the function it goes like this code...
now it will not send PISSLET, what do i do?
its making me angry this is the querystring the other variables are sending to my ajaz page and i echo them out, but thie pood variable will not work . i even tried redefining it code...
I can update a $("#SomeElement") from a webservice, that's easy. However if my code is as follows:
<script>
var javascriptVariable="";
$.ajax({ type:
[code]....
I'm having a little bit of a problem with some ajax on my page.Below is the code in it's current state (with debugging info included):
Code:
function setrating(id)
{
[code]....
I need an answer to a problem with iframe below.I have an iframe jsp page which is a popup window from an other jsp page.The iframe jsp popup window has few buttons.I need the return reponse of button clicked from iframe in parent window.BTW the parent window is not an iframe.
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