storing value after Ajax function calling

Anilananda Chakrabortty

7y960AJAX

Hy guys i stuck in storing value to a variable after calling ajax method , i am not able to use

callback in ajax....

Someone help me please...

here is the code===============

var s = GetSessionValue("userId");

alert(s);

function GetSessionValue(key1) {

$.ajax({

type: "POST",

url: "Service1.asmx/GetSessionValue",

data: '{key: "' + key1 + '" }',

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

dataType: "json",

success: OnSuccess,

failure: function (response) {

alert(response.d);

}

});

function OnSuccess(result) {

return result.d;

alert(result.d);

}

===============================

AJAX methods are calling sucessfully , data also getting correct...

but i want to return the value from ajax function and want to store in another variable .

In my existing code

var s = GetSessionValue("userId");

alert(s);

Im getting undefind value.

I know some callbak logic is required , but im not able to implement in this case ....

i need someone help ...

Thanks

5 Replies

Know the answer? Post it — somebody with the same question will find it here.

Vivek Kumar7y ago
Hi,
As you want a solution in callback then please have a look to below links
https://stackoverflow.com/questions/4988277/javascript-callback-functions-with-ajax
Salman Beg7y ago
You can follow this link for callback function, https://www.c-sharpcorner.com/UploadFile/dacca2/understand-jquery-ajax-function-callback-function-of-jquery/
Anilananda Chakrabortty7y ago
I don't want to use

async: "false",

since it is very old approach ... browser also give alert...

I want solution with callback
Vivek Kumar7y ago
Hi,
You can use jquery ajax call synchronous. Please find below link for more details.

https://stackoverflow.com/questions/13971769/how-to-make-jquery-ajax-request-synchronous

https://www.aspsnippets.com/Articles/jQuery-AJAX-Async-False-Synchronous-call-and-Async-True-Asynchronous-call-difference.aspx
Salman Beg7y ago
Hi.
Can you put async:false and try it. Otherwise what you can do is set the value in a hidden field and again retrieve the value from hidden field and assign it to s valriable. You can follow this link for example,

https://stackoverflow.com/questions/6854542/how-to-return-value-when-ajax-request-is-succeeded

Thanks.