How to replace the following ajax callback method with a jquery callback method ?
function PostCall() {
$('#txtRes').val('Please Wait......');
var reqval = $('#txtReq').val();
$.ajax({
url: "myPage",
type: 'post',
data: "{'name':'" + reqval + "'}",
async: true,
contentType: "application/json",
success: function (result) {
$('#txtRes').val(result);
}
});
}
Just append the success at the end of your ajax statement (for example):
}.success(function(){
})
If you want to stick with Ajax go the jQuery 1.8 way and try this:
function PostCall() {
$('#txtRes').val('Please Wait......');
var reqval = $('#txtReq').val();
$.ajax({
url: 'myPage',
type: 'post',
data: "{'name':'" + reqval + "'}",
dataType: 'json',
async: true,
contentType: "application/json",
})
.done(function(result) {
$('#txtRes').val(result);
})
.fail(function(jqXhr, textStatus) {
console.log('Error: ...' + textStatus);
})
.always(function() {
});
}
The .done() function replaces your success callback.
If Ajax is not an option for you check out:
WebSockets
Http POST Requests (requires the whole page to be reloaded)
Related
Here I am using Ajax+Mvc when I call my data from database it comes in Json format but how can I display that data in div?
Html
<div id="Div1">
</div>
<b>Get data</b><input type="button" id="BtnGetData" value="GetData" />
When user click on BtnGetData the data should be display in #Div1 Here my AJax working fine.But please suggest me where to write $('#Div1').load();
$('#BtnGetData').click(function () {
alert('ok data')
$.ajax({
url: '/Home/Getdata',
method: "GET",
type: "JSON",
contentType: 'application/json; charset=utf-8',
data: JSON.stringify(),
})
})
MvcController
public JsonResult Getdata()
{
var x = Objrepo.GetEmplo();
return new JsonResult { Data = x, JsonRequestBehavior = JsonRequestBehavior.AllowGet };
}
You can write to the div on the success function of your $.ajax call.
eg:
$('#BtnGetData').click(function () {
$.ajax({
url: '/Home/Getdata',
method: "GET",
type: "JSON",
contentType: 'application/json; charset=utf-8',
data: JSON.stringify(),
success: function (data) {
console.log(data);
}
})
});
You need to add a success callback to your ajax:
$('#BtnGetData').click(function () {
alert('ok data')
$.ajax({
url: '/Home/Getdata',
method: "GET",
type: "JSON",
contentType: 'application/json; charset=utf-8',
success: function(data){
$("#Div1").append(data);
}
})
})
There is no need to add the data property to the ajax if your are not sending anything.
May be, you can add this function in your script.
$('#BtnGetData').click(function () {
alert('ok data')
$.ajax({
url: '/Home/Getdata',
method: "GET",
type: "JSON",
contentType: 'application/json; charset=utf-8',
data: JSON.stringify(),
writeResponse(data)
})
});
writeResponse(data){
$("Div1").html(data);
};
Hello guys i have the next ajax call for login. I serialize the form and send the data to server and return redirect url link. My problem is that my url after post is like
http://localhost:50802/?username=&password= and not http://localhost:50802/Home
$.ajax({
type: "POST",
url: "Login/Login",
dataType: 'json',
contentType: "application/json; charset=utf-8",
data: loginJson,
cache: true,
async: false,
complete: function (result) {
alert(result.link);
window.location.replace = "/Home/Index";
},
error: function () {
$("#username").val("");
$("#password").val("");
alert("Wrong Username or Password!");
}
}); //end ajax call
It looks like you wrote this $.ajax call in the .click event of a submit button or in the .submit event of a form without canceling the default action by returning false from the callback or by calling preventDefault on the argument. Here's how your code should look like:
$('#id_of_your_form').submit(function(e) {
e.preventdefault(); // <-- That's what I am talking about and what you forgot
$.ajax({
type: "POST",
url: "Login/Login",
dataType: 'json',
contentType: "application/json; charset=utf-8",
data: loginJson,
cache: true,
async: false,
complete: function (result) {
window.location.replace = "/Home/Index";
},
error: function () {
$("#username").val("");
$("#password").val("");
alert("Wrong Username or Password!");
}
}); //end ajax call
});
Also async: false,????? You know what this does, do you? That's not AJAX. That's a blocking synchronous call to your webserver during which the client browser would be frozen like during the Ice Age 2 ruining all user experience.
Try returning false at the end of your submit function
$('#id_of_your_form').submit(function(e) {
$.ajax({
type: "POST",
url: "Login/Login",
dataType: 'json',
contentType: "application/json; charset=utf-8",
data: loginJson,
cache: true,
async: false,
complete: function (result) {
window.location = "/Home/Index";
},
error: function () {
$("#username").val("");
$("#password").val("");
alert("Wrong Username or Password!");
}
}); //end ajax call
return false; });
Another option would of course be to return the correct redirectlink from the controller instead of overriding it in the java script.
I am trying to use the newer .done() syntax for a call to .ajax(), but I don't see how to get the data returned from the server into my .done() function. Here is my code:
function checkLink(element) {
var resultImg = $(element).parent().parent().find("img");
resultImg.attr("src", "/resources/img/ajaxLoad.gif");
$.ajax({
type: 'POST',
url: '/services/Check.asmx/CheckThis',
data: '{somedata: \'' + whatever + '\'}',
contentType: 'application/json; charset=utf-8',
dataType: 'json',
success: onSuccess,
error: onFailure
}).done(function () { success2(resultImg); });
}
function success2(img) {
img.attr('src', '/resources/img/buttons/check.gif');
}
function onSuccess(data) {
// The response from the function is in the attribute d
if (!data.d) {
alert('failed');
}
else {
alert('hurray!');
}
}
checkLink is called from a simple button push. Both onSuccess() and success2() are firing just fine. But... what I need is the "data" parameter from onSuccess passed to success2... or alternately, be able to pass "resultImg" to onSuccess (although I would prefer using .done instead of the deprecated method). It seems I can either pass my own parameters, or access the JSON result from the AJAX call... but not both. How do I accomplish this?
You can close over the resultImg variable:
function checkLink(element) {
var resultImg = $(element).parent().parent().find("img");
resultImg.attr("src", "/resources/img/ajaxLoad.gif");
$.ajax({
type: 'POST',
url: '/services/Check.asmx/CheckThis',
data: '{somedata: \'' + whatever + '\'}',
contentType: 'application/json; charset=utf-8',
dataType: 'json',
success: onSuccess,
error: onFailure
}).done(success2);
function success2(data) {
resultImg.attr('src', '/resources/img/buttons/check.gif');
// do whatever with data
}
function onSuccess(data) {
// The response from the function is in the attribute d
if (!data.d) {
alert('failed');
}
else {
alert('hurray!');
}
}
}
want to get response from url using ajax and jquery.
tried with this code
$(document).ready(function () {
$.ajax({
type: 'POST',
url: 'apexweb.co.in/apex_quote/uname_validation.asp?,
dataType:'jsonp',
success: function(data){
alert(data);
}
});
});
i want to display response as fail but i didn't get any response on browser
Help Me
Try this
$(document).ready(function () {
$.ajax({
type: "POST",
url: "apexweb.co.in/apex_quote/uname_validation.asp?",
contentType: "application/json; charset=utf-8",
dataType: "jsonp",
success: function (data) {
alert(data.d);
},
failure: function (data) {
alert(data.d);
}
});
});
aspx site:
<script type="text/javascript">
function AjaxTest() {
var codeVal = "hello world";
if (codeVal) {
$.ajax({
type: "POST",
url: "CheckAge",
data: { code: codeVal },
contentType: "application/json; charset=utf-8",
dataType: "json",
async: true,
cache: false,
success: function (result) {
alert("in ajax success");
},
error: function () {
alert("error");
}
});
}
}
Its double checked that the javascript function is called.
Controller:
[HttpPost]
public JsonResult CheckAge(String code)
{
return Json("abc");
}
It ended up always in the ajax - error - function.
The Controller function isnt called anyway. Why?
Why get I always an error?
What is wrong?
Check your url that you are posting to. It seems that you are missing the controller part. E.g. it should read /{controller}/{action}.
If that script is directly in the view (i.e. not in an external javascript file) you could have something like:
$.ajax({
type: "POST",
url: <%= Url.Action("CheckAge", "ControllerName") %>,
data: { code: codeVal },
contentType: "application/json; charset=utf-8",
dataType: "json",
async: true,
cache: false,
success: function (result) {
alert("in ajax success");
},
error: function () {
alert("error");
}
});
Also, I find it advantageous to use firebug to debug ajax stuff. You can set break points in your javascript and also see all the requests and responses.
HTHs,
Charles
EDIT: Try simplifying things... e.g.
$.post('<%= Url.Action("CheckAge", "ControllerName") %>',
{ code: codeVal },
function (data) {
alert("in ajax success");
},
"json");