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GET Method always receives null value

I´m trying to get a list with Ajax when a modal shows up, but for some reason my method always receives a null variable. I´m sure that the issue is on the Ajax call, because if I test my method using 1 as an argument instead of the value from Ajax, it returns the list the way I wanted.
JS:
$("#visualizacao").on('show.bs.modal', function (e) {
var data = $(e.relatedTarget);
var idAviso = data.context.dataset.avisoid;
$.ajax({
type: 'GET',
url: 'ListaVisuAviso/' +idAviso,
success: function (response) {
$('#visu-table tbody').empty();
var trHTML = '';
$.each(response, function (i, item) {
trHTML += '<tr><td>' + item.NOME + '</td><td>' + item.DATA_HORA + '</td><td>' + item.DEPARTAMENTO + '</td></tr>';
});
$('#visu-table tbody').append(trHTML);
$('#modal-visu').modal('show');
},
error: function (xhr) {
console.log(xhr);
}
});
$('#modalAviso').modal('show');
});
C#
[HttpGet]
public JsonResult ListaVisuAviso(string avisoId)
{
//var avisoid = 1;
var avisoid = Convert.ToDecimal(avisoId);
var query =
from a in _dataContext.TB_AVISOS_NOTIFICACOES
join b in _dataContext.VW_USUARIOS4 on a.USUARIO_PR equals b.USUARIOID
where a.AVISO_ID == avisoid
select new VisuAviso()
{
NOME = b.NOME,
DATA_HORA = a.DATA_HORA.ToString(),
DEPARTAMENTO = b.DEPARTAMENTO
};
return Json(query, JsonRequestBehavior.AllowGet);
}

I discovered what was causing the "issue". To use this way of sending the parameter, my route config on the backend was expecting it to be a parameter called "id". So I would either change my receiving parameter to "id" instead of "avisoId" like the following:
[HttpGet]
public JsonResult ListaVisuAviso(string id)
{
//var avisoid = 4;
var avisoid = Convert.ToDecimal(id);
var query =
from a in _dataContext.TB_AVISOS_NOTIFICACOES
join b in _dataContext.VW_USUARIOS4 on a.USUARIO_PR equals b.USUARIOID
where a.AVISO_ID == avisoid
select new VisuAviso()
{
NOME = b.NOME,
DATA_HORA = a.DATA_HORA.ToString(),
DEPARTAMENTO = b.DEPARTAMENTO
};
return Json(query, JsonRequestBehavior.AllowGet);
Or, I would have do specify the name of the parameter on the JS, like this "?usuarioId=", this way the route would know that it´s not the id parameter:
$("#visualizacao").on('show.bs.modal', function (e) {
var idAviso = $(e.relatedTarget).attr('data-avisoid');
$.ajax({
type: 'GET',
url: 'ListaVisuAviso/?usuarioId =' + idAviso,
dataType: 'json',
success: function (response) {
$('#visu-table tbody').empty();
var trHTML = '';
$.each(response, function (i, item) {
trHTML += '<tr><td>' + item.NOME + '</td><td>' + item.DATA_HORA + '</td><td>' + item.DEPARTAMENTO + '</td></tr>';
});
$('#visu-table tbody').append(trHTML);
$('#modal-visu').modal('show');
},
error: function (xhr) {
console.log(xhr);
}
});
$('#modalAviso').modal('show');
});

ajax weird bahavior in url after deleting data in browsers cache

I have a C# Webservice which I'm contacting through URL to retrieve data. The Webservice is lying on a local server in our company network. For example: I have a specific function to get street names, the url to webservice is like this :
Request URL:http://10.1.1.32:8080/webportale_ger_webservice.asmx/SelectStreets
This URL is stored in localStorage.
After deleting browsers cache the request URL has changed, which makes absolutly no sense to me:
http://10.1.1.32:8081/nullSelectStreets
The port is wrong and what about that null?
After trying this request several times again, the url value changes to the correct value.
My jQuery ajax Request looks like this:
var UrlToWebservice = window.localStorage.getItem("url_to_webservice");
$(document).on("keyup", "#input_strasse", function () {
var inputStr = $('#input_strasse').val();
var charStr = inputStr.charAt(0).toUpperCase() + inputStr.substr(1);
console.log("buchstabensuppe: ", charStr)
$.ajax({
type: 'POST',
url: UrlToWebservice + 'SelectStreets',
data: { 'charStr': charStr },
crossDomain: true,
dataType: 'xml',
success: function (response) {
$("input_strasse_datalist").empty();
var strassen = new Array;
$(response).find('STRASSE').each(function () {
var strasse = $(this).find('NAME').text();
var plz = $(this).find('PLZ').find('plz').text();
var ort = $(this).find('PLZ').find('ORT').text();
var arstrasse = $(this).find('AR').first().text();
console.log("arstrasse ", arstrasse)
$("#input_strasse_datalist").append('<option data-ar = ' + arstrasse + ' value = "' + strasse + ' (' + plz + ', ' + ort + ')">' + strasse + ' (' + plz + ', ' + ort + ')</option>')
$("#input_plz").val(plz)
$("#input_ort").val(ort)
})
},
error: function () {
window.location.hash = "httperror";
}
})
})
The value in localStorage is: http://10.1.1.32:8080/webportale_ger_webservice.asmx/
What am I doing wrong?
Thanks a lot.

sometimes ajax works & sometime not & click on row function is also not working

can we write two ajax success function on same page because sometimes its work sometime not
doajaxpost function is to load data in 2nd dropdown list when 1st dropdown list onchange function call by using ajax
and searching function is to load data in table by using ajax
but it sometime get execute properly sometimes not showing any result
function doAjaxPost(instituteId) {
alert(instituteId);
// get the form values
/* var name = $('#name').val();
var education = $('#education').val(); */
$.ajax({
type : "POST",
url : "/paymentGateway/merchant",
dataType : "json",
data : "institutionId=" + instituteId,
success : function(data) {
// we have the response
alert(data + "hiee");
var $merchantId = $('#merchant');
$merchantId.find('option').remove();
$("#merchant").append("<option value='ALL'>ALL</option>");
$.each(data, function(key, value) {
$('<option>').val(value.merchantId).text(value.merchantId)
.appendTo($merchantId);
});
},
error : function(e) {
alert('Error: ' + e);
}
});
}
function searching() {
// get the form values
var institutionId = $('#instiuteId').val();
var merchantId = $('#merchant').val();
var userType = $('#userType').val();
var userStatus = $('#userStatus').val();
var userId = $('#userId').val();
alert("insti=" + institutionId + "mecrhant=" + merchantId + "usertyep="
+ userType + "users=" + userStatus + "userid=" + userId);
$.ajax({
type : "POST",
url : "/paymentGateway/searching",
dataType : "json",
data : {
institutionId : institutionId,
merchantId : merchantId,
userId : userId,
userStatus : userStatus,
userType : userType
},
success : function(data) {
// we have the response
alert(data);
/* var $merchantId = $('#dynamictable');
$merchantId.find('table').remove();
$('#dynamictable').append('<table></table>');
var table = $('#dynamictable').children(); */
$("#tablenew tbody tr:has(td)").remove();
$.each(data, function(key, value) {
/* alert(value.institutionId); */
$('#tablenew tbody:last').append(
"<tr><td>" + value.userId + "</td><td>"
+ value.firstName + "</td><td>"
+ value.userStatus + "</td><td>"
+ value.userType + "</td><td>"
+ value.userAddedBy + "</td><td>"
+ value.userRegisteredDateTime
+ "</td><td>" + value.recordLastUpdatedBy
+ "</td><td>" + value.recordLastUpdatedTime
+ "</td></tr>");
});
},
error : function(e) {
alert('Error: ' + e);
}
});
}

It could be a caching issue, try to setup
$.ajaxSetup({ cache: false });
See
How to prevent a jQuery Ajax request from caching in Internet Explorer?

I got the same problem. You'll have to use the class instead of ID to make it work. Use $(".merchant") to replace $("#merchant"), and update 'merchant' to be a class.

Can't Grab Query String in JavaScript

We were provided function getQueryStringVariableByItemID for our project and are using function getData to use a web service for a game's details from a games table. We believe the getData part is working fine since we use a similar POST on another page. Is getQueryStringVariableByItemID not properly grabbing the query string?
We call getData with the body tag of html as onload="getData()". Many thanks in advance!
Code:
<script type="text/javascript">
function getQueryStringVariableByItemID(ItemID) {
//use this function by passing it the name of the variable in the query
//string your are looking for. For example, if I had the query string
//"...?id=1" then I could pass the name "id" to this procedure to retrieve
//the value of the id variable from the querystring, in this case "1".
ItemID = ItemID.replace(/[\[]/, "\\\[").replace(/[\]]/, "\\\]");
var regexS = "[\\?&]" + ItemID + "=([^&#]*)";
var regex = new RegExp(regexS);
var results = regex.exec(window.location.search);
if (results == null)
return "";
else
return decodeURIComponent(results[1].replace(/\+/g, " "));
}
function getData() {
var ItemID = getQueryStringVariableByItemID(ItemID)
$.ajax({
type: "POST",
url: "./WebServiceTry.asmx/GetGameDetails",
data: "{'ItemID': '" + escape(ItemID) + "'}",
contentType: "application/json; charset=utf-8",
dataType: "json",
success: function (response) {
var data = response.d;
$('#output').empty();
$.each(data, function (index, item) {
var Title = item.Title
var Price = "$" + item.Price
var Year = "Year: " + item.Year
var Developer = "Developer: " + item.Developer
var Platform = "Platform: " + item.Platform
$('#output').append('<li>' + Title + '</li>');
$('#output').append('<li>' + Price + '</li>');
$('#output').append('<li>' + Year + '</li>');
$('#output').append('<li>' + Developer + '</li>');
$('#output').append('<li>' + Platform + '</li>');
$('#output').listview('refresh');
});
},
failure: function (msg) {
$('#output').text(msg);
}
});
}
</script>

The ItemID you are passing in the getData(while calling inside the getData) should be undefined because the function doesnt have that variable.Pass a valid id and it will work fine

Simple ajax request

I am new to ajax and am trying to get the following script working. I just want to take info from a json object and print it to the document.
Here is the JSON file called companyinfo.json:
{
'id':1,
'name':'Stack'
}
The Ajax request looks like this:
ar xhr = false;
var xPos, yPos;
$(function(){
var submitButton = $("#dostuff");
submitButton.onclick = sendInfoRequest;
});
function sendInfoRequest (evt) {
if (evt) {
var company1 = $("#companyInput1").val;
var company2 = $("#companyInput2").val;
}
else {
evt = window.event;
var company = evt.srcElement;
}
$.ajax({
url : 'companyinfo.json',
dataType: 'json',
data: company1,
success: function(data) {
console.log(data);
var items = new Array ();
$.each(data, function(key, val) {
items.push('<li id="' + key + '">' + val + '</li>');
});
}
});
return false;
}
console.log(data.id);
To start simple. I just console.log the data.id to see if the script returned a value from the json file.
To write it to the document I would do something like this, calling the showContents function in the callback function above:
function showContents(companyNumber) {
if (xhr.readyState == 4) {
if (xhr.status == 200) {
var outMsg = xhr.responseXML;
$("." + data.companyName.toLowerCase + companyNumber).innerHTML(data.companyName)
}
else {
var outMsg = "There was a problem with the request " + xhr.status;
}
}
}
I'm pretty new to Ajax, but hopefully that makes some sense. Thanks

if you are trying to get something i think you should add
type:"GET"
on your $.ajax it should look like this.
$.ajax({
url : 'companyinfo.json',
dataType: 'json',
type:"GET",
contentType: "application/json; charset=utf-8",
data: company1, //What is your purpose for adding this?
success: function(data) {
console.log(data);
var items = new Array ();
$.each(data, function(key, val) {
items.push('<li id="' + key + '">' + val + '</li>');
});
}
});

Im not sure about this in your code:
var company1 = $("#companyInput1").val; //should it be with ()??
var company2 = $("#companyInput2").val; //should it be with ()??
should it be with () like this one:
var company1 = $("#companyInput1").val();
var company2 = $("#companyInput2").val();

The easiest way to get and parse JSON is to use $.getJSON
// you need to use a map as your data => {key : value}
$.getJSON("companyinfo.json", {company : company1}, function(data){
console.log(data);
var items = []; // new Array();
$.each(data, function(key, val){
items.push('<li id="' + key + '">' + val + '</li>');
});
// do something with items
});

you can do like this:
$.getJSON("getJson.ashx", { Index: 1 }, function (d) {
alert(d);
});