How to access the controller method from javascript onclick event?

Hi All,
I am totally new to development. And I got struck in calling a controller method from javascript function.
I have no idea about ajax and all those things. Please can anyone help me to solve this issue!
Thanks in advance.

Hi,
As I know, you can use jQuery to do this, here is an example.
Example of your Controller Method.
[HttpPost] // can be HttpGet
public ActionResult Test(string id)
bool isValid = yourcheckmethod(); //.. check
var obj = new {
valid = isValid
return Json(obj);
and this would be your javascript function.
function checkValidId(checkId)
$.ajax({
url: 'controllerName/Test',
type: 'POST',
contentType: 'application/json;',
data: JSON.stringify({ id: checkId }),
success: function (valid)
if(valid) { //show that id is valid }
else { //show that id is not valid }
If you have further issues, I would suggest you move to MVC forum, it is appropriate and more experts will assist you.
Best Regards,
Jambor
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