delete table row using jQuery within ajax statement - javascript

I want to delete a row from the table, but the success part of ajax does not execute.
function fn_delete() {
$("a.delete").click(function () {
idProduct = $(this).parents("tr").find("td").eq(1).html();
$.ajax({
type: "POST",
url: "DeleteProduct",
data: { idProduct },
success: function () {
$(this).parents("tr").fadeOut("normal", function () {
$(this).remove();
}
});
});
};

this inside your success callback will not be the same as this in the code that makes the ajax call, unless you explicitly set the context:
$.ajax({
context: this,
data: ...
});

I don't think this is giving the value that you're expecting.
Try this:
function fn_delete() {
$("a.delete").click(function () {
idProduct = $(this).parents("tr").find("td").eq(1).html();
var myRow = $(this).parents("tr");
$.ajax({
type: "POST",
url: "DeleteProduct",
data: { idProduct },
success: function () {
$(this).parents("tr").fadeOut("normal", function () {
myRow.remove();
});
}
});
});

Related

ajax success response change as #html.raw

I have following jquery code in my Razor viewpage
$(document).ready(function () {
var grouplistvalues = #Html.Raw(Json.Encode(Session["grouplist"]));
$("#nsline").click(function () {
alert(grouplistvalues)
$.ajax({
type: "POST",
url: "SetupGroups",
data: { grouplist : grouplistvalues },
dataType: "html",
success: function (response)
{
grouplistvalues = null;
grouplistvalues = response;
alert(response)
},
error: function ()
{
}
});
});
$("#ewline").click(function () {
$.ajax({
type: "POST",
url: "SetupGroups",
data: { grouplist : grouplistvalues },
dataType: "html",
success: function (response)
{
grouplistvalues = null;
grouplistvalues = response;
},
error: function ()
{
}
});
});
in above grouplistvalues its taking session as html raw
when I alert it on #nsline click function I can see it,
in above function I'm calling to ajax function and above grouplistvalues value updating
once I alert it on #nsline click function success response I can see a alert like folllowing
since this(grouplistvalues value) 1,2,.. changing as [1,2..] I cannot call to other ajax function in #ewline click function since parameter difference,
this is the above common ajax call
[HttpPost]
public JsonResult SetupGroups(long[] grouplist)
{
Session["grouplist"] = null;
List<long> groupList = new List<long>();
foreach (var groupitem in grouplist)
{
groupList.Add(groupitem);
}
long[] grouparray = groupList.ToArray();
Session["grouplist"] = grouparray;
return Json(grouparray);
}
}
Though I have two click functions its work with only the first click(ewline or nsline only the first time)
How to solve this
It was the dataType in your ajax request. It should be json:
dataType: "json"

How to fire anothing action before a each loop (with ajax) complete

I have try for the following for a long time and i have no more idea now, anyone can help me please.
I just want to reload the current page after add items to the cart, I have try the stupid way by count, promise then and other else, but all fail.
The problem is... the page already reloaded before the item add to the cart...!
The following is my sample:-
$("#Button").click(function () {
var CurrentURL = window.location.href;
var SelectedProduct = $('.SelectedProduct').length;
$('.SelectedProduct').each(function () {
$.ajax({
url: "/ShoppingCart/AddToCart",
data: { id: $(this).attr('id')},
datatype: "json"
});
--SelectedProduct
if (SelectedProduct === 0) {
window.location.href = CurrentURL;
$('#CartListContent').slideDown()
}
});
});
$("#Button").click(function () {
var CurrentURL = window.location.href;
var promise = $('.SelectedProduct').each(function () {
$.ajax({
url: "/ShoppingCart/AddToCart",
data: { id: $(this).attr('id')},
datatype: "json"
});
promise.done(function () {
window.location.href = CurrentURL;
$('#CartListContent').slideDown()
});
});
});
}
});
I don't know how much control you have over the server side code, but you should let the API handle adding an array of products to cart, that would make it so much faster and simpler. http://jsfiddle.net/hqn3eufa/
$("#Button").on('click', function () {
var selected_products_ids = [];
$('.SelectedProduct').each(function () {
selected_products_ids.push(this.id);
});
$.ajax({
url: "/ShoppingCart/AddToCart",
data: { ids: selected_products_ids },
datatype: "json",
success: function() {
window.location.reload();
}
});
});
You can make use of the success callback of ajax and the reload function:
$.ajax({
url: "/ShoppingCart/AddToCart",
data: { id: $(this).attr('id')},
datatype: "json",
success:function(data){
window.location.reload();
}
});
your page reload before the add to cart completes.
use a callback to find out when the add to cart is completed:
$("#Button").click(function () {
var CurrentURL = window.location.href;
var promise = $('.SelectedProduct').each(function () {
$.ajax({
url: "/ShoppingCart/AddToCart",
data: { id: $(this).attr('id')},
datatype: "json"
}).success(function () {
window.location.href = CurrentURL;
$('#CartListContent').slideDown()
});
});
});
}
});
Now i use the following way, it is stupid but work:-
Anyother suggestion..!?
var SelectedProduct = $('.SelectedProduct').length;
$('.SelectedProduct').each(function () {
$.ajax({
url: "/ShoppingCart/AddToCart",
data: { id: $(this).attr('id')},
datatype: "json",
success: function (data) {
--SelectedProduct
if (SelectedProduct == 0) {
window.location.reload()
}
}
});
});

How to set a conditional delay for making a request?

I have an array of symbols as shown below.
For each element of the array I am making an Ajax request.
var symbols = ["SSS", "SEE"]
$(document).ready(function () {
$.each(symbols, function (index, value) {
loadXMLDoc(value);
});
});
function loadXMLDoc(value) {
$.ajax({
type: 'POST',
url: 'https://ganaga/aaaa/sss',
success: function (data) {}
}
In the browser console, I see many XHR requests under pending state.
Is it possible to make the next Ajax request only when the response has been obtained for the previous array element?
var symbols = ["SSS", "SEE"]
$(document).ready(function () {
loadXMLDoc(symbols);
});
function loadXMLDoc(symbols) {
if(symbols[0]) {
$.ajax({
type: 'POST',
url: 'https://ganaga/aaaa/sss',
success: function(data){ loadXMLDoc(symbols.slice(1)) }
});
}
}
There is no value being used in loadXMLDoc in your question, I suppose you want:
url: 'https://ganaga/aaaa/'+ symbols[0],
Also, I would rename function to loadXMLDocs.
I would just use a little recursion:
var symbols = ["SSS", "SEE"]
$(document).ready(function () {
loadXMLDoc(0);
});
function loadXMLDoc(idx) {
value = symbols[idx];
if (value) {
$.ajax({
type: 'POST',
url: 'https://ganaga/aaaa/' + value,
success: function (data) {
//...
loadXMLDoc(idx+1);
}
});
}
}
Invoke the next AJAX call in the callback function.
function loadXMLDoc(n) {
var value = symbols[n];
$.ajax({
type: 'POST',
url: 'https://ganaga/aaaa/sss',
success: function (data) {
if (n < symbols.length-1) {
loadXMLDoc(n+1);
}
}
}
}
Start it with:
loadXMLDoc(0);

Combining Jquery and Javascript function

This is a relatively novice question. I have the following jQuery function:
$(function ()
{
$.ajax({
url: 'testapi.php',
data: "query="+queryType,
dataType: 'json',
success: function(data)
{
var id = data[0];
$('#'+divID).html(id);
}
});
});
I'm looking to name and parameterize the function so that I can call it repeatedly (with the parameters queryType and divID which are already included in the code). I've tried unsuccessfully multiple times. Would anyone have any insight?
Just stick it in a function
function doAjax(queryType, divID) {
return $.ajax({
url: 'testapi.php',
data: {query : queryType},
dataType: 'json'
}).done(function(data) {
var id = data[0];
$('#'+divID).html(id);
});
}
and use it
$(function() {
element.on('click', function() {
var id = this.id
doAjax('get_content', id);
});
});
or
$(function() {
element.on('click', function() {
var id = this.id
doAjax('get_content', id).done(function(data) {
// do something more with the returned data
});
});
});
If you're just looking for a simple function to wrap the ajax call give this a try. Place this function above the document ready code.
function callAjax(queryType, divID) {
$.ajax({
url: 'testapi.php',
data: "query="+queryType,
dataType: 'json',
success: function(data) {
var id = data[0];
$('#'+divID).html(id);
}
});
}
To call the function do this:
callAjax('YourQueryHere', 'YourDivIdHere');
function myFunction(queryType, divID)
{
$.ajax({
url: 'testapi.php',
data: "query="+queryType,
dataType: 'json',
success: function(data)
{
var id = data[0];
$('#'+divID).html(id);
}
});
}
and to call it simply use
myFunction("someQueryType", "myDiv");
function doThis(queryType, divID)
{
$.ajax({
url: 'testapi.php',
data: "query="+queryType,
dataType: 'json',
success: function(data)
{
var id = data[0];
$('#'+divID).html(id);
}
});
}

javascript undefined

Why cant I access the render function when ajax returns successfully? maybe im going crazy but i've done this before.
Its telling me that this.render is not a function?
DataItem.prototype = {
display: function () {
$('body').append(this.name + ": " + this.getData(this.rootData, this.subData) + "<br />");
},
getData: function (rootData, subData) {
$.ajax({
type: "GET",
url: "json/data.js",
data: "",
dataType: "json",
success: function (json){
this.render(json);
}
});
},
render: function (json) {
var res = [];
for(var i=0, t; t=json.log.entries[i]; i++) {
var p = t.request.url;
if (p!=undefined) res.push(p);
}
return res.length;
}
};
The scope has changed when you try to call this.render(). I believe this contains the ajax request object instead of the DataItem object.
A simple solution is doing like this:
getData: function (rootData, subData) {
var self = this;
$.ajax({
type: "GET",
url: "json/data.js",
data: "",
dataType: "json",
success: function (json){
self.render(json);
}
});
},
Edit: I was wrong, inside the success function the this variable contains the options for the ajax request, however my solution is still correct. See more in the jQuery documentation (http://docs.jquery.com/Ajax/jQuery.ajax#options)
Just to add to #adamse answer. If you want to externalize your success function instead of using an anonymous function you could use the following to pass additional parameters:
function handleSuccess(json) {
this.self.render(json);
}
$(function() {
$.ajax({
type: "GET",
url: "json/data.js",
data: "",
dataType: "json",
// pass an additional parameter to the success callback
self: this,
success: handleSuccess
});
});
since the following code works (i.e "abcd" is printed), I am not sure what is the problem you are facing unless you would share more code.
<script>
DataItem = function(){};
DataItem.prototype = {
display: function () {
return 'a';
},
getData: function () {
document.write(this.render());
return this;
},
render: function () { return "abcd"; }
};
di = new DataItem();
di.getData();
</script>

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