I'm trying to consume a web service by the way of a method GET, but I can't get the success function, when the program goes to the error function, the alert displays "0", I don't know why.
Here's my code using AJAX
function funcAddPines() {
$.ajax({
type: "GET",
contentType: "application/json; charset=utf-8",
url: "url.asmx/HelloWorld",
dataType: "json",
data: JSON.stringify({}),
success: function (objRes) {
alert("Entró a web-service");
},
error: function (e) {
alert(e.status);
}
});
}
Related
When I am calling server method from AJAX call at that time showing 500 internal server error. And this error also happens sometimes only, while sometimes it is working fine.
I am really confused that what is going on that it is sometimes working and sometimes not working. In fact I didn't change anything after working the code but when I check second day it is coming this type of error.
Here is my code
<input type="button" id="btn_save" value="Save" class="button" />
$(document).on("click", "#btn_save", function (e) {
$.ajax({
type: "POST",
url: "schoolregistration.aspx/EntrySave",
data: JSON.stringify({ schoolName: $('#txt_schoolname').val() }),
contentType: "application/json; charset=utf-8",
dataType: "json",
success: OnSuccess,
failure: function () {
document.getElementById("txt_schoolname").value = "";
alert("Error! Try again...");
}
});
});
function OnSuccess(response) {
document.getElementById("txt_schoolname").value = "";
alert(response.d);
}
[WebMethod]
public static string EntrySave(string schoolName)
{
//Here is the code
}
Sometimes working fine but sometimes not coming call in this entrysave method.
try this:
$.ajax({
type: "POST",
url: "schoolregistration.aspx/EntrySave",
data: { "schoolName": $('#txt_schoolname').val() },
contentType: "application/json; charset=utf-8",
dataType: "json",
success:function (data) {alert('ok');},
error: function () {alert('error');}
});
I have an Ajax call being made from a button press which returns me some data then goes off and creates a grid. The first time the function is called the Ajax call is made, data is returned and the grid is displayed. Happy Days.
However any subsequent call to the function, where none of the data parameters are changed, result in the Ajax call not being made to the server and the function skips straight to 'success' with the results from the successful call already populated.
Changing any of the 'postParameters' results in a successful Ajax call and the data is refreshed.
function btnClick(){
//blah blah
getGridData();
}
function getGridData() {
var postParameters =
{
SiteID: "#Model.SiteID",
DateFilterFrom: $("#datepickerFrom").val(),
DateFilterTo: $("#datepickerTo").val(),
CustomerFilter: $("#customers").val()
};
$.ajax({
url: "#Url.Action("SalesForecast_Read", "Planning")",
type: "GET",
contentType: "application/json; charset=utf-8",
data: postParameters,
dataType: "json",
success: function (results) {
createHighlights(results.Highlights);
createGrid(results.Entries);
},
error: function (e) {
alert(e.responseText);
}
});
};
I know there must be an important Javascript concept I am missing but I just cant seem to be able to nail it.
Can anyone help put me in the right direction?
Have you tried to disable the cache with:
$.ajax({
url: "#Url.Action("SalesForecast_Read", "Planning")",
type: "GET",
cache: false,
contentType: "application/json; charset=utf-8",
data: postParameters,
dataType: "json",
success: function (results) {
createHighlights(results.Highlights);
createGrid(results.Entries);
},
error: function (e) {
alert(e.responseText);
}
});
Explanations
The cache basically tries to save a call to the server by saving the return value of the calls.
It saves them using a hash of your query as a key, so if you make a second query that is identical, it will directly return the value from the cache, which is the value that was returned the first time.
If you disable it, it will ask the server for every query.
You can add cache: false to your ajax request.
$.ajax({
url: "#Url.Action("SalesForecast_Read", "Planning")",
type: "GET",
contentType: "application/json; charset=utf-8",
data: postParameters,
dataType: "json",
cache:false,
success: function (results) {
createHighlights(results.Highlights);
createGrid(results.Entries);
},
error: function (e) {
alert(e.responseText);
}
});
IE might not listen to you though. For that you can add a field to the POST Parameters, where you add the current time in miliseconds, so even IE does not cache.
try to add this in ur ajax call:
$.ajax({
cache: false,
//other options...
});
This will force the recall of the ajax each time.
For more information please check the following link :
api.jquery.com/jquery.ajax
This is what I am trying to do. On a home page.. say /home.jsp, a user clicks on a link. I read value of the link and on the basis of which I call a RESTful resource which in turn manipulates database and returns a response. Interaction with REST as expected happens with use of JavaScript. I have been able to get information from REST resource but now I want to send that data to another JSP.. say /info.jsp. I am unable to do this.
I was trying to make another ajax call within success function of parent Ajax call but nothing is happening. For example:
function dealInfo(aparameter){
var requestData = {
"dataType": "json",
"type" : "GET",
"url" : REST resource URL+aparameter,
};
var request = $.ajax(requestData);
request.success(function(data){
alert(something from data); //this is a success
//I cannot get into the below AJAX call
$.ajax({
"type": "post",
"url": "info.jsp"
success: function(data){
alert("here");
("#someDiv").html(data[0].deviceModel);
}
});
How do I go about achieving this? Should I use some other approach rather than two Ajax calls? Any help is appreciated. Thank You.
You can use the following function:
function dealInfo(aparameter) {
$.ajax({
url: 'thePage.jsp',
type: "GET",
cache: false,
dataType: 'json',
data: {'aparameter': aparameter},
success: function (data) {
alert(data); //or you can use console.log(data);
$.ajax({
url: 'info.jsp',
type: "POST",
cache: false,
data: {'oldValorFromFirstAjaxCall': data},
success: function (info) {
alert(info); //or you can use console.log(info);
$("#someDiv").html(info);
}
});
}
});
}
Or make the AJAX call synchronous:
function dealInfo(aparameter) {
var request = $.ajax({
async: false, //It's very important
cache: false,
url: 'thePage.jsp',
type: "GET",
dataType: 'json',
data: {'aparameter': aparameter}
}).responseText;
$.ajax({
url: 'info.jsp',
type: "POST",
cache: false,
data: {'oldValorFromFirstAjaxCall': request},
success: function (info) {
alert(info); //or you can use console.log(info);
$("#someDiv").html(info);
}
});
}
In this way I'm using.
"type": "post" instead of type: 'post'
Maybe it will help. Try it please. For Example;
$.ajax({
url: "yourURL",
type: 'GET',
data: form_data,
success: function (data) {
...
}
});
No matter what I try, this Ajax request doesnt seem to be going inside the success block. Can anyone tell me whats happening? This is driving me crazy.
$.ajax({
url: "/Index/AddItem",
type: "post",
contentType: "application/json",
data: JSON.stringify({
Srl: $("#Srl").val(),
Description: $("#Description").val(),
Comment: $("#Comment").val()
}),
headers: {
"RequestVerificationToken": "#TokenHeaderValue()"
},
dataType: "json",
success: function (data) {
alert("Done");
$('#tknGen').html(data);
}
});
Im trying to replace a with the response data. But even the alert is not getting fired. So, Im guessing its a problem with the success block
Try this
$.ajax({
url: "/Index/AddItem",
type: "post",
contentType: "application/json",
data: {
Srl: $("#Srl").val(),
Description: $("#Description").val(),
Comment: $("#Comment").val()
},
headers: {
"RequestVerificationToken": "#TokenHeaderValue()"
},
dataType: "json"
}).done(function (data) {
alert("Done");
$('#tknGen').html(data);
}).fail(function(jqXHR, textStatus, errorThrown) {
console.error(errorThrown);
});
"done" and "fail" callback are the recommended way to handle result since Query 1.8 (at replacement for success and error).
The fail callback will show up more information about the error thrown server-side.
I am using Javascript to get records from the database, everything works the way i want but i cannot show alerts in success handler. When i place a break point to sucess:function(data) it gets hit but this line is not being hit $("#Alert").html(data).show().... Another unusually thing i have noticed is that some time $("#Alert").html(data).show().. gets hit. Is there any way i can debug this?
function MethodNAme() {
ajReq.abort();
ajReq = $.ajax({
type: "POST",
url: "Services/",
data: ,
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (data) {
getSomething();
$("#Alert").html(data).show().delay(5000).fadeOut();
alert("working");
}
}
your syntax is not correct, you are placing a function getSomething() in middle of $.ajax(),
function MethodNAme() {
ajReq.abort();
ajReq = $.ajax({
type: "POST",
url: "Services/",
data: {},
contentType: "application/json; charset=utf-8",
dataType: "json",
// getSomething(); <-- remove this
success: function (data) {
$("#Alert").html(data).show().delay(5000).fadeOut();
alert("working");
}
});
}
You can use console.log() to print data in browser console. You can access console window by pressing F12 key and then go to console tab.