Bryuk Bryuk - 1 month ago 17
Ajax Question

Is it any limit for POST data size in Ajax?

I'm trying to send Array of data from my page to the MVC Action using jQuery Ajax. Here is my jquery code:

$('#btnSave').click(function () {
result = [];
$('#tblMatters tbody tr.mattersRow').each(function () {
if (!($(this).hasClass('warning'))) {
var item = {};
if ($(this).find('td.qbmatter > div.dropdown').length > 0) {
item.QBDescription = $(this).find('td.qbmatter > div.dropdown > a').text();
else {
item.QBDescription = $(this).find('td.qbmatter').text();
var id = $(this).find("td:first > a").text();
item.Narrative = $("#collapse" + id).find("div.scrollCell").text();
item.WorkDate = $(this).find('td.workDate').text();
item.Hours = $(this).find('td.hours').text();
item.Person = $(this).find('td.person').text();
if ($(this).find('td.rate > div.dropdown').length > 0) {
item.Rate = $(this).find('td.rate > div.dropdown > a').text();
else {
item.Rate = $(this).find('td.rate').text();
item.Amount = $(this).find('td.amount').text();
var originalRecords = $("#tblSummary tr.summaryTotalRow td.summaryOriginalRecords").text();
var originalHours = $("#tblSummary tr.summaryTotalRow td.summaryOriginalHours").text();
var excludedHours = $("#tblSummary tr.summaryTotalRow td.summaryExcludedHours").text();
var totalHours = $("#tblSummary tr.summaryTotalRow td.summaryTotalHours").text();
url: "/Home/SaveQBMatter",
type: "POST",
data: JSON.stringify({ 'Matters': result, 'originalRecords': originalRecords, 'originalHours': originalHours, 'excludedHours': excludedHours, 'totalHours': totalHours }),
dataType: "json",
traditional: true,
contentType: "application/json; charset=utf-8",
success: function (data) {
if (data.status == "Success") {
var url = '@Url.Action("Index", "Home")';
window.location.href = url;
} else {
alert("Error On the DB Level!");
error: function () {
alert("An error has occured!!!");

Let me expalain a little bit. I have HTML Table that was builded dynamically and I need to store this data into a Database. In jQuery I have a loop through the table and I store data of every row in
array. Then I pass this data using Ajax into MVC Action. And here is my problem starts... I've realized that sometime it goes as it should be, but sometimes I'm getting an error from ajax
alert("An error has occured!!!");
Now I've understood that this error occurs when my
array is getting big. For example: If it contains 100-150 items > Everything is good, but when more than ~150 > Error.

Is it any POST Limit in Ajax? How can I set it up for any sizes??? I really need this functionality! Any help please!

My ActionResult Code:

public ActionResult SaveQBMatter(QBMatter[] Matters, string originalRecords, string originalHours, string excludedHours, string totalHours)
DBAccess dba = new DBAccess();
int QBMatterID = 0;
int exportedFileID = 0;
foreach (QBMatter qb in Matters)
dba.InsertQBMatter(qb.QBDescription, qb.Narrative, qb.WorkDate, qb.Person, qb.Hours, qb.Rate, qb.Amount, ref QBMatterID);
ExcelTranslator translator = new ExcelTranslator();
translator.CreateExcelFile("", Matters, originalRecords, originalHours, excludedHours, totalHours);
return Json(new { status = "Success", message = "Passed" });

UPDATE: Found my Solve!

Json HAS max lenght! I need to increase this value. In web.config add the following:

<add key="aspnet:MaxJsonDeserializerMembers" value="150000" />


Json HAS max length! I need to increase this value. In web.config add the following:

  <add key="aspnet:MaxJsonDeserializerMembers" value="150000" />