passing Multiple Parameter to Jquery Ajax

I am Using Jquery Ajax in asp.net. I try to pass multiple parameter i am getting this error [HTTP/1.1 500 Internal Server Error 43ms] and Error: Sys.WebForms.PageRequestManagerParserErrorException: The message received from the server could not be parsed.

But if i pass a hard coded value it executing perfectly

hard code means i put values instead of variables.

Hi Saravana,

As per your comment, please see below possibilities:

Possibility 1:

Whatever params you are passing from data attribute in AJAX; same variable names should be there in server side function. From your comments(But if i pass a hard coded value it executing perfectly) it looks like it is fine. And total no of AJAX params should be match with server side function.

Possiblity 2:

Please check you are sending correct data to server. Suppose you need ID as integer in server side and AJAX is passing blank or character then it throw you exception. Please recheck it.

Possiblity 3 :

Sometimes we pass double qout ("), single quot through AJAX, at that time it will throw you exception. Because it data is not correct format. So in order to solve this type problem please use JSON.stringify() method. Please have a look below code:

$.ajax({

type: "POST",

contentType: "application/json;charset=utf-8",

url: "Employee.aspx/Save",

data: JSON.stringify({title: 'value1' ,songPath: 'value2' }),

dataType: "json",

success: function(data) {

$('lbltxt').text(data.d);

error: function(result) {

alert("error");

}

});

Possibility 4

And also put a debugger point in server side method check method called successfully. If it doesn't hit your debugger point then your data is not correct or params are not matching. If it hits your debugger point then debug in your server side code, it may throws some error.

After analyzing above possibilities if you are not able to find the issue - please paste the code here and data passing from AJAX.

2 Replies

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Govinda Rajulu Yemineni11y ago
Hi Saravana Kumar,

you can refer below URL's

http://www.aspdotnet-suresh.com/2012/07/how-to-send-or-pass-multiple-parameters.html

http://www.c-sharpcorner.com/UploadFile/b926a6/data-insert-into-sql-database-using-jquery-ajax-method/

http://www.aspdotnet-suresh.com/2015/05/insert-data-into-database-using-jquery-ajax-method-in-aspnet-csharp-vbnet.html
Manas Mohapatra11y ago
Hi Saravana,

As per your comment, please see below possibilities:

Possibility 1:
Whatever params you are passing from data attribute in AJAX; same variable names should be there in server side function. From your comments(But if i pass a hard coded value it executing perfectly) it looks like it is fine. And total no of AJAX params should be match with server side function.

Possiblity 2:
Please check you are sending correct data to server. Suppose you need ID as integer in server side and AJAX is passing blank or character then it throw you exception. Please recheck it.

Possiblity 3 :
Sometimes we pass double qout ("), single quot through AJAX, at that time it will throw you exception. Because it data is not correct format. So in order to solve this type problem please use JSON.stringify() method. Please have a look below code:

$.ajax({
   type: "POST",
   contentType: "application/json;charset=utf-8",
   url: "Employee.aspx/Save",
   data: JSON.stringify({title: 'value1' ,songPath: 'value2' }),
   dataType: "json",
   success: function(data) {
      $('lbltxt').text(data.d);
   },
   error: function(result) {
      alert("error");
   }
});

Possibility 4
And also put a debugger point in server side method check method called successfully. If it doesn't hit your debugger point then your data is not correct or params are not matching. If it hits your debugger point then debug in your server side code, it may throws some error.

After analyzing above possibilities if you are not able to find the issue - please paste the code here and data passing from AJAX.